Imr 4895 temperature sensitivity

Author: xyvy

August undefined, 2024

Witryna4 lut 2014 · First of all, IMR 4895 is a great powder for the 308. It's worked very well for me with 125 and 150 grain bullets. I do most of my shooting with the 308 in temperatures of 40 degree and lower in preparation for big game hunting seasons so I can't offer much insight on temperature changes for this specific cartridge / powder … Witryna16 cze 2011 · I've shot Imr4895 from 90-18 degrees in my Cle kreiger AR. I figure a half grain difference in my 223 loads which is about 50fps. Meaning on a freezing cold day I can use a half grain more powder. I get excellent results in 3 different 223 AR's & a …

IMR 4895 and 308 Shooters

Witryna25 reviews. Originally a military powder featured in the 30-06, IMR 4895 is extremely versatile as a medium burn speed propellant. From the 17 Remington to the 243 … greengairs east

My Powder Temperature Sensitivity Test - Long Range Hunting …

Witryna29 mar 2024 · Alaska. In testing many years ago with 77s, it was stable enough for 600 yard NTIT shooting groups for us, holding solidly MOA and just under in various uppers/barrel brands for team members. Tested from around 40 degrees to what was likely 125 or so in direct sun and even leaving rounds chambered in a hot chamber up … Witryna9 lis 2009 · Several years back Hodgdons did a velocity spread test from 0-125 F on 7.62x51mm using a 168gr OTM bullet. Their data showed the most temperature … Witryna26 paź 2015 · Superformance is not rated as temperature resistant. However, from shooting it in 30 and 90 degree weather I can tell you there was no noticeable change … flushometer vs flush tank

Powder Temp Stability: Hodgdon Extreme vs. IMR Enduron

How many made the switch from IMR 4350 to H4350

Witryna13 sty 2024 · I had compared two of my tests of .223 rem. A 22 F degrees drop (from 42 F to 20 F) resulted in a 155fps drop in muzzle velocity. This is 23gr IMR 4895 with 55 … Witryna13 sty 2024 · This is 23gr IMR 4895 with 55 gr FMJ from a 1/12 twist rate Rem 700 SPS 26” .223 rem rifle. The 155fps drop seems too much to believe but that was what I got. I am curious how you guys modify your load data over different seasons (temperature conditions). Thank you in advance for any info. Last edited: Jan 12, 2024 … flushoncheckpointWitryna20 cze 2016 · Bryan specifically cited Hodgdon Extreme Series powders as one of the least temperature sensitive powders he’d used. He also made it clear that no powder is completely insensitive to temperature. Your muzzle velocity WILL vary based on ambient temperature, regardless of what powder you use. green gains in local elections

"Witryna15 kwi 2013 · IMR-4064 is now used in military 7.62 Special Long Range ball, MK 316 MOD 0 using a 175 grain bullet instead of RL-15, because it is a single base powder and less temp sensitive. IMR-4895 was used in 7.62 MATCH, M852 ammunition with the lighter 168 grain bullets. " - Imr 4895 temperature sensitivity

Imr 4895 temperature sensitivity

My Powder Temperature Sensitivity Test - Long Range Hunting …

Witryna10 mar 2024 · The grains of IMR 4895 shows the single visible perforation running all the way through the center. The RL-16 only possesses a hint of an indentation where the … Witryna16 wrz 2024 · Re: Sensitivity questions of IMR 4895 In VA, we also have 40F temp swings in the summer days. I consider IMR-4895 to be fairly temp sensitive. Not as …

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Witryna21 sie 2024 · H4895: This powder showed no temperature sensitivity between 34°F and 102°F with 55 grain bullets. It was not evaluated with 77 grain bullets. H335: This … Witryna1 wrz 2013 · Anyone experience temp sensitivity with IMR 3031 in .308/7.62 loads? Load is for M1A, CCI #34, 41.5GRS IMR 3031, Hornady 150gr fmj. Made these up about a month ago, weather was cool and rounds fired/cycled without a hitch. Fired a few today, weather about 15-20 degrees warmer, rounds felt 'harder' than I remembered, still

Witryna11 wrz 2016 · My tests show that IMR 4895 shoots well in my 6mm BR Norma @ 600 yds, 2850 fps. However, it seems that more people are using H 4895. ... The main reason I have not routinely used IMR4895 in loads for competition as yet is a concern about the temperature-sensitivity. According to the temperature data I have found, IMR4895 … Witryna27 lip 2015 · 1. cold soaked 10 rounds of the (1c) above at -20C for 8 hours, put them in a cooler with thermal mass at -20C. 2. Using a Magnetospeed-V3 Chronograph, I shot 1 shot out of a clean gun, then waited 90s I shot the following sequence: - 1 shot (1c, 5.18gn) @ -20C), wait 90s - 1 shot (1c, 5.18gn) @ +25C), wait 90s

Witryna18 mar 2016 · I wonder how H4895 performed in their testing in the 308. Temperature sensitivity is cartridge dependent. I like H4895 for my 308 bolt gun is cuz it has a 26" barrel and Varget won't burn efficiently in the 2600 FPS sweetspot. H4895 works like a champ in this pressure range. P phorwath Well-Known Member Joined Apr 4, 2005 … Witryna30 mar 2024 · The newer IMR powders are less temp sensitive and have copper eraser additive in the powder. (extreme powder plus copper erasing) H4895 = 0.23 fps …

Witryna9 lis 2009 · Several years back Hodgdons did a velocity spread test from 0-125 F on 7.62x51mm using a 168gr OTM bullet. Their data showed the most temperature sensitive powder in their test to be IMR 4895, not a ball powder. Hodgdons data was on their website but has since been removed.

Witryna10 mar 2024 · The drawback is that the reaction rate of nitroglycerine is sensitive to temperature. Older design double-base propellants have significantly more change with temperature than a single-base propellant lacking nitroglycerine. ... Compare the appearance of the old IMR 4895 and the newer Alliant RL-16. The grains of IMR 4895 … greengairs facebookWitryna13 lut 2024 · Had it been based on technology, H4895 would be the winner - smaller granules for improved metering, insensitive to ambient temperature. ETA - I never … greengairs churchWitryna14 sie 2012 · Confirm this if you can: IMR powders are temperature sensitive. I'm looking for specific references OR experienes with IMR-4831 and IMR-4895 in … greengairs health and fitnessWitryna16 wrz 2024 · H-4895 has shorter kernels and will measure though a powder hopper a little better than IMR 4895. As vs pointed out, H-4895 is one of Hodgdon's "Extreme" powders which are less temperature sensitive than the IMR counterparts. If I have a choice, I will always choose a powder that has less temperature sensitivity over one … greengairs community councilWitryna23 lip 2015 · My Powder Temperature Sensitivity Test. Jump to Latest Follow 1 - 4 of 4 Posts. L ... IMR 4895 @ 45.5gr Hot Vel. 2769,2757 Cold Vel. 2798,2793 Avg. Difference (33fps) H4895 @ 44.5gr Hot Vel. 2794,2803 Cold Vel. 2801,2805 Avg. Difference (4fps) greengairs health \\u0026 fitnessWitrynaAs with all new technologies, improvements were rapid, and by the 1930s DuPont had developed several far more temperature-resistant, “Improved Military Rifle” powders, many of which remain popular … greengairs health \u0026 fitnessWitryna30 sty 2024 · H4895 is close, but not a direct substitute for IMR4895. They started life as different lots of IMR4895. Hornady had one lot, IMR decided to standardize to another lot. Hornady had new lots made to match there original lot of 4895. Commercial loaders and Government Arsenals do not use 'canister grade' powders. flushometer won\u0027t stop flushing