IMR 4831 and IMR 4350

[muzz]

Are these powders temp stable?

 

[Vince]

I'm switching to IMR 4451 to replace 4350 as 4451 is reported to be more temp stable.

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[Guybo]

Are these powders temp stable?

I've used both over the years in the 30.06 as well as the 25 and have never experienced any temp problems with either.

 

[DrMike]

Unless you are shooting at long distance, temperature stability is not a significant factor. All powders are affected by temperatures--some less so than others. Regardless of the propellant employed, it is always a good idea to check your pet load at the temperature in which you will be hunting/shooting.

 

[JD338]

Unless you are shooting at long distance, temperature stability is not a significant factor. All powders are affected by temperatures--some less so than others. Regardless of the propellant employed, it is always a good idea to check your pet load at the temperature in which you will be hunting/shooting.

Exactly!

JD338

 

[sask boy]

I have been using IMR 4350 for well over 40 years in my 270win and for my nephew's 7mm mag. Hunting in Saskatchewan I am not sure if you can get any more extreme as I have hunting in plus 30 Celsius in September to January late Elk in minus 30 Celsius. I have never noticed a difference in my zero.

Blessings,
Dan

 

[ElmerThud]

I have been using IMR 4350 for well over 40 years in my 270win and for my nephew's 7mm mag. Hunting in Saskatchewan I am not sure if you can get any more extreme as I have hunting in plus 30 Celsius in September to January late Elk in minus 30 Celsius. I have never noticed a difference in my zero. Blessings, Dan

While my temp range is not quite so extreme in the UK, I most certainly agree and have never noticed any kind of issue with either IMR4350 or IMR4831 with my .25-06.

 

[Hegland]

I observed a ~60 fps delta using IMR 4350 across about a 65 degree Fahrenheit ambient temperature change, compared to just under 20 fps delta using H4350 across the same temperature differential. H4831 seems to be similarly stable, but as much as I hate to admit it I've never loaded IMR 4831.

For what it's worth.