Pistol Powder Temperature Sensitivity

Jeeper48

Well-Known Member
Joined
Sep 20, 2017
Messages
133
I apologize if this is a ignorant question but I wanted to asked before I proceed. Is temp sensitivity an issue with pistol powders and hunting for sub 50 yard shots? I would like to develop a couple of hunting loads for this upcoming season and didnt known if its something I should be concerned about. I know my limitations and would not take a shot past 50 yards so should I be concerned? I will likely develop the loads this fall, but hunting season in Iowa can get below 0 in December/January
 

J E Custom

Well-Known Member
Joined
Jul 29, 2004
Messages
10,725
Location
Texas
Temp sensitivity can be a problem with many powders but at short distances they don't have much of a bearing on most pistol cartridges.

Pistols that shoot rifle cartridges at longer distances can have issues with temp sensitivity and effect the POI.

J E CUSTOM
 

MagnumManiac

Well-Known Member
Joined
Feb 25, 2008
Messages
2,873
Temp sensitivity changes velocity, the issue with this is at long range, normal ranges would not see the difference generally, so you should be good to go.

I will caution you that some powders are finicky in cold weather, those like H110/296 can be dangerous in cold weather due to squibs.
You need a tight crimp and hot primer with a max load.
I use the same ammo in both my revolver and carbine, 240gr Gold Dot SP and 24gr of 296. I got squibs @ -8C with these loads, in fact a few just clicked and fizzled, there was yellow unburned powder on those when I pulled the bullets.
My crimp was good on these, so I assume it was the cold weather causing the issue, even at 0C and 1C all shots fired with no problem.

Cheers.
:)
 

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