IMR4166 in the. Loading density is perfect for magnums, contributing to superb uniformity. ) Is it temperature sensitive? 3. 7 MOA with 53-gr. I want something that will meter consistently through my Dillon 550. 5 grains of IMR 4064 or Varget will both shoot great with either the 150 Sierra Matchking or the 168 grain Matchking. IMR Enduron. IMR has some extruded powders that come in a short cut variation, these seem to meter very well. As I researched I came across AA 4064. I've heard that H4895 is one of Hodgdon's "extreme" powders and is not temp sensitive. I contacted Hodgdon about this and was told by them that Varget and 4064 for all practical purposes was the same in all respects. Some people are need it Accurate No. 22-250, you have a huge selection of good medium burn-rate powders, but we like the new IMR-8208 XBR powder and H-4895 because they deliver great accuracy and they are not temp sensitive. offered to the public many moons ago. Hornady V-Max bullet. If you control for barrel temp, and only test powder temp sensitivity, then you see that most extruded single base powders are fairly "temp insensitive" compared to double base powders, which is why the Navy changed the powder for Mk316 Mod0 to IMR 4064, because it was more "temp stable" than Reloader 15. New Imr 4064 Powders Imr Powders check price seeking special discount Probably the most versatile powder IMR makes, 4064 delivers extremely consistent accuracy, shot to shot. need help with powder. 62mm NATO and the 6mm PPC, shooters will find IMR 8208 XBR totally insensitive to changes in temperature, while yielding max velocities and “tack driving” accuracy. However, one thing that many if not most handloaders don't realize is that temp-sensitivity depends on the. and Raymond Michael Burns Thesis. Incorrectly reloaded cartridges can result in damage and personal injury. Powder choices for both. Win 748, Re15, and IMR 4064 are extremely temperature sensitive, though I do like H4894 for lighter bullets in shorter barrels. Plus you're probably going to fill up the case with 4064. Interestingly, both powders are temperature sensitive and a 32 degree temperature change causes a 0. *Recommended Powder C Compressed Load 3 72-grain VARMIN-A-TOR Sectional Density. 308 using both H4895 and IMR 4064. 7 inch groups). Not sure if it's suitable for your application, consult your load data. You will be surprised to determine how convenient this product can be, and you will feel good realizing that this Imr 4064 Powders Imr Powders is among the best selling item on today. IMR 4350 is primarily used for the newest short magnum cartridges in the industry but also used for silhouette shooting. Powder equivalents. 2 Powders Accurate Powder Accurate No. Ideally suited for cartridges like the 223 Remington/5. 62x51 sniper round, the MK 316 MOD 0. 2 non cansiter grade IMR-4064 in a redesigned case. IMR describes IMR 4320 as follows: “Short granulation, easy metering, and perfect for the 223 Remington, 22-250 Remington, 250 Savage and other medium burn rate cartridges. See Detail Online And Read Customers Reviews Imr 4064 Powders Imr Powders prices over the online source See people who buy "Imr 4064 Powders Imr Powders" Make sure the store keep your personal information private before buying Imr 4064 Powders Imr Powders Make sure you can proceed credit card online to buyImr 4064 Powders Imr Powders additionally the store protects your. Probably the most versatile powder IMR makes, 4064 delivers extremely consistent accuracy, shot to shot. While the item might be priced similarly at different shops. Apparently, it a short stick extruded powder. At $20-$30 per pound, powder is not the most expensive component in the whole operation, but it is the one that can get you in the most trouble if you don’t get it right. I like my H4895 and H4350 and IMR 8208 and the standby IMR4064. I have some Varget but I was saving it for when I work up 308 loads. Temperature Sensitivity - Varget vs XBR8208. There is a "performance window" for temp. ) N/AV NIAV YES t8J NO 0 Heat, open flame, static discharge and impact. The fastest burning of the four, IMR 4166, will give a burn rate in the range of VARGET and IMR 4064; perfect for the. 7 grain difference in IMR 4064 to achieve the same results at different temperatures. 30-30WCF and similar. Maybe that is why RL 17, 19 and 22 last year disappeared to be replaced by RL 23 and others. Burn Rate ChartBurn Rate Chart v3. The next data will be published soon. If you work a load up when it is cooler outside,you may have high pressure problems when it is warm. All powders are temperature sensitive, some more so than others. based on 34 ratings var8. There is a "performance window" for temp. 223 load using W748 that I developed in the spring. Accuracy is a relative thing, to some guys, 3/4" to 1 1/4" is great, while others are looking for sub 1/2" groups. A friend just gave me a box of Speer 150 gr SBT's that I may try. I've never set up a test but have experienced working up loads in cool weather and had pressure issues in the heat. 22-250: IMR-3031 for a. Interestingly, both powders are temperature sensitive and a 32 degree temperature change causes a 0. 174 Ballistic. 0 IMR 4064 185 Berger Juggernaut 42. H335/Bl-c(2), which has a patent date in the early 30's, is MUCH less sensitive than Varget; in that application. History of the M118 Ammunition. MatchKing with IMR 4064 and VARGET December 6, 2016 Bill Marr Bullet Selection , Cartridge Selection , Precision Rifles , Reloading 0 In the days before the 175 gr. IMR 4166, 4451 and 7977 are a trio giving a burn rate that sort mimic (but are in no way interchangeable, don’t even think it!) with IMR 4064, 4350 and 7828, suitable for most, if not all, rifle cartridges. If that is exceeded (sometimes referred to "stressing" the powder by using it outside of it's design window) you can lose the temp. To explain what I am saying here is an example two of my favorite cartridges the. You may have to register before you can post: click the register link above to proceed. Production of IMR Powders dates back over 200 years when the company was originally founded by E. Other similar powders would include IMR 4064 and Accurate XMR4064 and Accurate 2520. I do have to try and remember that temperature sensitivity is not an issue to many folks around here as it's not real prevalent until you get beyond 600 yards. What is my average variation (fps per degree shift)? 4. As for the 308, Varget and R-15 will do every thing 4064 will do accuracy wise, and are less temp. Reloading Ammo: Smokeless Powder and Temperature Sensitivity | Gun Digest Find out how modern advances in smokeless powder have mitigated cartridge pressure fluctuations. Sierra MatchKing (SMK) , the 168 SMK ruled supreme in the 308 Winchester. Some people are need it Accurate No. 45 (Long) Colt. Psalm 118:8 It is better to trust in the Lord than to put confidence in man. ” This older-generation powder is more temp sensitive than the Hodgdon Extreme propellants, but in the right application, it looks to be a viable alternative for folks. The MK 316 MOD 0 cartridge was developed to replace the M118 LR, by providing greater accuracy and less temperature sensitivity. Increase your rifle's performance up to 200 fps without extra chamber pressure, recoil, muzzle blast, temperature sensitivity, fouling, or loss of accuracy. Ball powder is fine for other guns, but not the M1. The Airgun Show – Hectic daytime rat shoot, PLUS top night hunting shots with Nite Site…. That's why Alliant Powder® put countless hours of research and development into creating Reloder® 33. 13 Please read the note and caution at bottom of the chart ACCURATE RAMSHOT ALLIANT HODGDON IMR WINCHESTER VIHTAVOURI NORMA ADI TUBAL. I have loaded 4064 in. I have some Varget but I was saving it for when I work up 308 loads. I have chronographed some IMR-4350 handloads that lost up to 150 fps between 70 and zero Fahrenheit. If you want a top velocity in the 45-70, a case full of 4198 and a 400 grain bullet will not disappoint. Plus you're probably going to fill up the case with 4064. Those do well for me but I have tested them both hot and cold. Hodgdon Powder Co. ” This older-generation powder is more temp sensitive than the Hodgdon Extreme propellants, but in the right application, it looks to be a viable alternative for folks. Thank you!. IMR 4007SSC 40. H4831sc you stated is one of the extreme powders. If you control for barrel temp, and only test powder temp sensitivity, then you see that most extruded single base powders are fairly "temp insensitive" compared to double base powders, which is why the Navy changed the powder for Mk316 Mod0 to IMR 4064, because it was more "temp stable" than Reloader 15. Typing your keyword for example Accurate No. 62mm Special Ball, Long Range, MK 316 MOD 0". Shot placement. It wasn't always, but maybe a dozen years ago was reformulated for U. Incorrectly reloaded cartridges can result in damage and personal injury. Sniping Ammunition: From Vietnam to Afghanistan was the propellant’s temperature sensitivity. This is a discussion on H335 for 308 within the Handloading Techniques forums, part of the Technical category; Three times I've had the last 8 pound keg of 335 in my hands at local shop and set it down thinking, I don't really. You may have to register before you can post: click the register link above to proceed. As you can see, IMR 4064 is a faster powder than Varget and your charges with IMR4064 were very much stronger than either of the loads listed here. IMR 4064 for 165 Grn 30-06 and 130 Grn 270 Win?? Spoke to a benchrest shooter the other day and he recommended IMR 4064 for a 165 grain bullet 30-06 loads and he said it is also very good for 130 grain bullets in the 270 win. Those two are virtually the same powder and several powders, on my chart, slower than the previous two. Also, I've read that H335 is temp sensitive but I haven't done any testing across seasons yet. It needs to be in the range of those two powders. Full text of "Velocity and pressure effects on projectiles due to variation of ingition parameters" See other formats _ VELOCITY AND PRESSURE EFFECTS ON PROJECTILES DUE TO VARIATION OF IGNITION PARAMETERS Richard Otis Culver Monterey, California B^ L VELOCITY AND PBESSUKE EFFECTS CN PROJECTILES DUE TO VARIATION OF IGNITION PARAMETERS by Richard Otis Culver, Jr. The special long range 7. 30-30 Winchester, and the. 308 Winchester,. I can show you my data with varget and 4064 in 243 win that shows 4064 less temperature sensitive. Varget Or H-380 In. However, I am not responsible for any errors, omissions, or damages resulting from the use or misuse of this information, nor for your doing something stupid with it. The searing heat of Middle Eastern deserts and bitter cold of Afghanistan’s. IMR 4064 is a medium-range burn speed powder and is one of the most versatile propellant in the IMR line, used for 223 Remington, 22-250 Remington, 220 Swift, 6mm Remington, 243 Winchester Super Short Magnum, 308 Winchester, 338 Winchester Magnum, and the list goes on and on. resistant powders. Powder Temperature Sensitivity I'm trying to figure out if my chrony is on the fritz or if the powders I am using are just that sensitive to temperature change. The newer MK 316 MOD 0 was developed with IMR-4064 a single base powder and is much more accurate. Powders temperature sensitivity as found by Ballistic XLR H50BMG 1. As an example, Dr. 473) at 200 yards:eek: Even at 43 grs the recoil was not bad at all. Accuracy is a relative thing, to some guys, 3/4" to 1 1/4" is great, while others are looking for sub 1/2" groups. Temperature sensitive powders chart or list. Federal recomended IMR-4064. Reloading Cast Bullets and IMR 4064 Hello. Temp stability is not going to be an issue with 4064. Is CFE223 temperature sensitive? Last fall when it was cooler, I workrd up a load for my 308 Winchester using CFE223 and Sierra 168 Matchkings. Water can be used from a distance. 308 Winchester,. Pressure tests reveal that IMR 4831 is somewhat quicker than H-4831. H335 for 308. Some people are need it Imr 4064 Powders Imr Powders in the cheap price. IMR-4895 for a 168gr. My T3x SL 7-08 likes Varget w/ 140 Accubonds and IMR 4064 w/Sierra 140s. IMR 4451, how does it stack up against Hodgdons 4350? As a guy who only reloads. The special long range 7. You may have to register before you can post: click the register link above to proceed. Denton Branwell did a series of tests on the 223 for temp sensitivity. I currently use IMR 4064 for my reloading (. 1 grains from the weight I set it for. If you control for barrel temp, and only test powder temp sensitivity, then you see that most extruded single base powders are fairly "temp insensitive" compared to double base powders, which is why the Navy changed the powder for Mk316 Mod0 to IMR 4064, because it was more "temp stable" than Reloader 15. IMR 4895 and IMR 4064 are very close in speed, with 4895 usually considered slightly the faster. I've found the slower burning powders to be more consistant irregardless of the weather. I know there’s probably lots of information out there on the sensitivity of different powders and there is on many of the Hodgdon Extreme line of powders but I was really interested in IMR 8208 XBR as it really shot well for me in my. Temperature Sensitivity. Powders temperature sensitivity as found by Ballistic XLR H50BMG 1. Increase your rifle's performance up to 200 fps without extra chamber pressure, recoil, muzzle blast, temperature sensitivity, fouling, or loss of accuracy. IMR 4064 has been an old friend in my reloading room for a long, long time, since the beginning days 25 years ago. The story of it's development was quite interesting as written up in Hodgdon's annual publication a couple of years ago, unfortunately I lent my copy out and it has never returned. Federal recomended IMR-4064. Plus you're probably going to fill up the case with 4064. IMR 4895 is better, but not vastly. IMR 4064 is a medium-range burn speed powder and is one of the most versatile propellant in the IMR line, used for 223 Remington, 22-250 Remington, 220 Swift, 6mm Remington, 243 Winchester Super Short Magnum, 308 Winchester, 338 Winchester Magnum, and the list goes on and on. 239″ for perfect depth into the cases. Staying with that mid burn rate powder for good results with the Garand. IMR 4895 POWDERSIMR 4895 POWDERS by BEST OFFER. The load has performed excellently in both the M1A and in the bolt guns. Since I was just getting a pressure test for future loads I shot only 3 shot groups,no signs of. 2 Powders Accurate Powder You can order Accurate No. I must have missed something as I never knew 4064 to be described as temp sensitive. 270 Winchester over larger bore diameter pressures. The next data will be published soon. IMR stood originally for "Improved Military Rifle" and the powders were used very extensively in them. You may have to register before you can post: click the register link above to proceed. I worked up some loads for a 35 Whelen AI and 338-06 a few years ago using N140. i use rl-19, imr 4350, h4831, accurate 2520, and imr 3031 for a varriety of loads and rifles but rl-19 is my fav. 223 (20" AR) and. Data is currently available for 9mm Luger,. I have been reloading the. 22-250, you have a huge selection of good medium burn-rate powders, but we like the new IMR-8208 XBR powder and H-4895 because they deliver great accuracy and they are not temp sensitive. There is a "performance window" for temp. 45 ACP for a while now and have decided that it is time to start reloading. 30-30 Winchester, and the. H335/Bl-c(2), which has a patent date in the early 30's, is MUCH less sensitive than Varget; in that application. 2 Powders Accurate Powder Accurate No. Those looking to load for intermediate calibers are in luck as well, since 4166 has a similar burn speed to that of 4064 or Varget. 100% Upvoted. IMR 4064 or IMR 4895 are the two go-to powders for the M1 Garand. The burn rate is very important for that gun. And I agree that the IMR series of powders can be temperature sensitive. Look at Western Powders (Accurate and Ramshot), they might have something that answers your question. IMR 4064 Temperature Sensitivity. I have chronographed some IMR-4350 handloads that lost up to 150 fps between 70 and zero Fahrenheit. -IMR 4064 à Temperature Sensitivity of ~46 FPS of variance from 0 o-125 o -Accurate 2520 à Temperature Sensitivity of ~63 FPS of variance from 0 o -125 o. 308 (X-Bolt). 68 RETUMBO. I have also heard 4064 is temp sensitive. For light to medium bullet weights, IMR 4350 is a great choice. The chart of relative quickness of powders below is intended as a guideline only. I use H4895 in my M1A but would try slower powders like Varget in a bolt action rifle. Select a Weapon Type and a Caliber then click Search to view Results. Ive heard some say 4166 is similar to 4064, which I haven't used or have on hand currently. All powders are temperature sensitive, but in my experience 8208 is the least sensitive of all powders available when it first came out. 30-06 and bl-c2. Sierra MatchKing (SMK) , the 168 SMK ruled supreme in the 308 Winchester. 5 inch groups will turn into 1 inch groups at the higher temperaturesand beyond. If that is exceeded (sometimes referred to "stressing" the powder by using it outside of it's design window) you can lose the temp. Shot it one day in 70 degree temps and it was all over the place. Sent from my iPhone using Tapatalk. 5 grains under max according to the book. Does anyone have a pet IMR 4064. Other similar powders would include IMR 4064 and Accurate XMR4064 and Accurate 2520. The newer MK 316 MOD 0 was developed with IMR-4064 a single base powder and is much more accurate. From personal experience, IMR 4064 is somewhat sensitive. R19 meters beautifully and is just a hair slower than IMR 4350. I came up with a final load that was listed as 1. You may have to register before you can post: click the register link above to proceed. Standard ball powders like W-748, H-335, H-380, etc are the worst. Port pressure is the amount of pressure remaining in the barrel of a gas-operated firearm, when the bullet passes by the gas port. With the 108's I'm going with 29. Rick and other team members were looking for a good powder that could replace Hodgdon 4350 which is difficult to obtain currently. This is a discussion on Temperature Sensitivity within the Ammunition forums, part of the M14 M1A Forum category; Morning guys, I've been thinking and done some internet searches. IMR 4064 did however shoot like a house a fire with the 70's and the 80's along with Win 760. Superformance ® uses progressive propellants that take your favorite V-MAX, ® NTX, ® SST, ® GMX, ® and InterLock, ® bullets to levels of performance that are simply unattainable with. The temperature stability is determined by the nitroglycerin content. I can show you my data with varget and 4064 in 243 win that shows 4064 less temperature sensitive. Temperature Sensitivity - Varget vs XBR8208. Looking for 4350 from Hodgdon, 4895 from IMR, #26 from Alliant, Accurate 2200, or Vihtavouri's 320? Natchez has them at the best prices. 22-250: IMR-3031 for a. I don't know of any ball powder that isn't temperature sensitive. If you work a load up when it is cooler outside,you may have high pressure problems when it is warm. H335/Bl-c(2), which has a patent date in the early 30's, is MUCH less sensitive than Varget; in that application. W760 and H414 are the same powder. While the item might be priced similarly at different shops. 71Chevrolet likes this. ) Is it temperature sensitive? 3. Denton Branwell did a series of tests on the 223 for temp sensitivity. IMR 3031 is significantly faster than the other two. IMR is some good powder, and I think it will do just fine. I'm told that H4895 has shorter "sticks" and thus meters fairly well. Good work IMR i've read a lot about temperature influence on loads and cold lowering pressure velocity etc but never any figures,i'm guessing those writers didn't actually do the cold test and probably wrote about it while sitting in front of the heater,as for superformance powder i'll just stick to adi powders and woodleigh bullets too. 223 (20" AR) and. There is a "performance window" for temp. We did a lot of testing two summers ago with Extreme powders, mostly Varget pushing 55 grain VMax's from. Reloading cartridges can be dangerous. MR IMR 4064. That's why I'm so stuck on H4350 because how consistent it burns. From personal experience, IMR 4064 is somewhat sensitive. ? is not temperature sensitive like others you can use your loads from winter to summer without any worries of pressure. YMMV IMR 4895 is pretty great with 155's as well. Reloading Cast Bullets and IMR 4064 Hello. In my experience, IMR 4895 is extremely versatile and would be my first choice in working up a load in a 9. The reason for this is simple; prior to DuPont's introduction of IMR 4831 in 1972, the surplus 4831 sold by Hodgdon was the only powder to carry this designation. Specific cartridge loads need specific propellant to perform to their ballistic peak. military use. New Imr 4064 Powders Imr Powders check price seeking special discount Probably the most versatile powder IMR makes, 4064 delivers extremely consistent accuracy, shot to shot. IMR 4895 and IMR 4064 are very close in speed, with 4895 usually considered slightly the faster. IMR 4350 is primarily used for the newest short magnum cartridges in the industry but also used for silhouette shooting. 243 Winchester Short Magnum,. 30-06 has a few powders that are listed for most or all the TSX & TTSX bullet weights I'm interested in trying:. IMR 4064 vs Varget powder. So-called "temperature insensitive" powders suddenly are all the rage now and all kinds of tests are being run by gun writers on them. I think another reason, a lot of people believe the "Extreme" hype. History of the M118 Ammunition. Those do well for me but I have tested them both hot and cold. Perhaps Alliant Power Pro 2000 MR or CFE 223 would be a good choice. IMR 4166 performed very similar to Varget, and proved to be fairly insensitive to large swings in temperature. When you develop loads in the winter, be careful. I've never set up a test but have experienced working up loads in cool weather and had pressure issues in the heat. Lastly, for extra caution of pressure problems, I take 'all my bullets' with Hollow Points, and I carefully shave the tips with a fine file so all will be the exact same length of 1. It can get pretty cold here during the season, and I've never been terribly hindered by the use of IMR powders. 62mm, NATO, Frangible, M160 (United States) : 108. IMR describes IMR 4320 as follows: "Short granulation, easy metering, and perfect for the 223 Remington, 22-250 Remington, 250 Savage and other medium burn rate cartridges. You may have to register before you can post: click the register link above to proceed. 338 Winchester Magnum, and the list goes on and on. For a few fellow forum members that MAY use IMR 4198 for some of their varmint cartridges, particularly the 222s and 223s, I was reading in the Hodgdon Annual Manual, under its description that it has added something to make it temp insensitive!. Following the advice from a later post I decided to give RL 15 a try with the 175 MK :D At 41 grs -not too bad at 100 42 grs - Excellent at 100 and around 1/2 inch at 200 yards 43 grs- Excellent at 100 and a little bit less than (. I would say it would be a good powder for that combo. 243 Winchester Super Short Magnum,. IMR 4166, 4451 and 7977 are a trio giving a burn rate that sort mimic (but are in no way interchangeable, don't even think it!) with IMR 4064, 4350 and 7828, suitable for most, if not all, rifle cartridges. It seemed to perform well for 250 gr and 225 gr bullets respectively but the pressures did get a little "spiky" at the upper end. Sensitivity to mechanical impact or to static discharge:. IMR-3031 and 4064, Lovex SO62 (Accurate-4064), Commonside TR140, Viht N140/540, Ramshot TAC are generally usable in applications that suit H4895. Nitrogen and carbon oxides (NOx and COx). This consistent performance is what reloaders have come to expect from Alliant Powder - and Reloder 17 proves worthy. I've heard that H4895 is one of Hodgdon's "extreme" powders and is not temp sensitive. 323) round nose cast bullets (with and without gas checks) using IMR 4064 powder and Unique in my 1945 model Turkish Mauser and in my M48 Yugo Mauser. Select a Weapon Type and a Caliber then click Search to view Results. 243 Winchester Super Short Magnum,. The one problem with IMR-4350, however, is that it tends to be relatively temperature-sensitive. Varget Or H-380 In. SOCOM H4198 IMR 4198 N120 Blackout D063 Accurate® 1680 680 Reloader 7 D073. The reason for this is simple; prior to DuPont's introduction of IMR 4831 in 1972, the surplus 4831 sold by Hodgdon was the only powder to carry this designation. However, one thing that many if not most handloaders don't realize is that temp-sensitivity depends on the. I've found the slower burning powders to be more consistant irregardless of the weather. H335/Bl-c(2), which has a patent date in the early 30's, is MUCH less sensitive than Varget; in that application. 223 Load Data Imr 3031 I didnt know if its even worth trying out for a plinking load or what. Reloading Cast Bullets and IMR 4064 Hello. Whether or not you bleed Hornady red, here’s why reloaders and hunters need to know about ELD-X bullets and Precision Hunter ammo. I have also heard 4064 is temp sensitive. Advances in U. Whether you're new to reloading or a seasoned vet, there's always something more to learn. He told me the IMR 4064 worked in it and that is what he set the loads with. Any of the above combinations will shoot 1/2 inch five shot groups in my gun at 100 yards most any time. This is a discussion on H4895 compared to IMR4895 within the Ammunition forums, part of the M14 M1A Forum category; Hey guys I was wondering what exactly the difference between h4895 and imr4895 is. The one problem with IMR-4350, however, is that it tends to be relatively temperature-sensitive. Sniping Ammunition: From Vietnam to Afghanistan was the propellant’s temperature sensitivity. For instance a load right at the pressure limits 50 degrees F might be a little too hot at 90 degrees F. Powder, Reloading, including Hodgdon Extreme H4350 Rifle Powder 1 lbs, Hodgdon Extreme Varget Rifle Powder 8 lbs, Hodgdon Extreme Varget Rifle Powder 1 lbs, Hodgdon CFE 223 Spherical Rifle Powder 8 lbs. is substituting IMR powders wherever possible, so there are a lot more tubs of the IMR versions of 4895, 4350, and 4831 arriving. Worked ok just on a hot day what was already feeling like a "hot" load just got hotter. NOTE: The military ammunition below was loaded with RL15 powder "BUT" in the heat of Iraq and Afghanistan the ammunition proved to be inaccurate due chamber pressure changes with temperature. I'm curious if anyone has some actual data on the velocity vs temperature. 6 Accurate® 2520 CFE 223 Reloader 15 IMR 4064 N140 Precision S062 VARGET® IMR 4320 H380®. I had good accuracy and 3000FPS from a 26" barrel. It wasn't always, but maybe a dozen years ago was reformulated for U. Taking a shot with the Howa 1500 30-06, at a 6x9 inch target, 400 yards downrange, hit! I have used this load from -15 to 55ºF with out a POI shift due to Powder temperature sensitivity. Good work IMR i've read a lot about temperature influence on loads and cold lowering pressure velocity etc but never any figures,i'm guessing those writers didn't actually do the cold test and probably wrote about it while sitting in front of the heater,as for superformance powder i'll just stick to adi powders and woodleigh bullets too. Temperature was around 40F. Its frigid today but I'm off so I'm trying out a bunch of reloads for the. Sniping Ammunition: From Vietnam to Afghanistan was the propellant’s temperature sensitivity. Hope this helps, and Semper Fi. I have used IMR-4064, IMR-4895, H-4895, H-335, Accurate 2015, 2200, 2230, 2460, Re-15, Varget, Ramshot TAC and others. IMR 4895 is better, but not vastly. Varget features small, extruded grains for uniform metering, is insensitive to hot and cold temperatures and produces higher energy for improved velocities over other powders in its burning-speed class. Accuracy Nodes in Rifle Handloading, Staying Safe When Finding the Sweet Spot Posted on June 2, 2017 by rthtgnbs A standard reloading technique for creating safe ammunition is to start off with a "ladder charge" that starts at the "starting charge weight" and works up to the "max charge weight" in 0. If this is your first visit, be sure to check out the FAQ by clicking the link above. As far as I know all the information presented above is correct and I have attempted to insure that it is. A friend just gave me a box of Speer 150 gr SBT's that I may try. Ideally suited for cartridges like the 223 Remington/5. 62mm NATO and the 6mm PPC, shooters will find IMR 8208 XBR totally insensitive to changes in temperature, while yielding max velocities and “tack driving” accuracy. The latter is a single based powder, ideal for the. 5 inch groups will turn into 1 inch groups at the higher temperaturesand beyond. If you searching for special discount you will need to searching when special time come or holidays. Like many other powders, H4895 has gone through some formulation updates over the years, so even if you have used it before, check the Hodgdon website for the most current data. Those looking to load for intermediate calibers are in luck as well, since 4166 has a similar burn speed to that of 4064 or Varget. I would say it would be a good powder for that combo. The Barnes load data for. If you don't believe it, start doing your own temp tests. Port pressure is the amount of pressure remaining in the barrel of a gas-operated firearm, when the bullet passes by the gas port. group sizes changed. The list is designed to help people involved with managing explosives to identify authorised explosives. IMR has some extruded powders that come in a short cut variation, these seem to meter very well. ) Is it temperature sensitive? 3. Over a range of 125 degrees F RL-15 came in at 50 fps and IMR 4064 at 46 fps, so about the same. Those two are virtually the same powder and several powders, on my chart, slower than the previous two. We have more information about Detail, Specification, Customer Reviews and Comparison Price. R19 meters beautifully and is just a hair slower than IMR 4350. IMR 4064 - One of the most versatile propellants in the IMR line, used for. Depending upon the temperature sensitivity of your powder and differences between test and 'deployment' temps, stay within the lower two primer states. The trouble with VarGet is that there is no directly equivalent IMR grade, and not many from other companies either. Temperature sensitive powders ive always been partial to IMR powders. Stick with ball powders. As the name implies, this new generation Extreme Extruded rifle propellant is a clean burning powder designed expressly for the 50 caliber BMG cartridge.