Home Forums Reloading Big Game Rifles Temp sensitivity window

With all the talk of different powders and their stability or not in variable temps, what do you consider the window of high and low temps that most powders remain reliable in?

In other words if say, you always hunt/ shoot between, 0 and 70 is there much to be concerned about?

I used to load a bunch of RL19 and 22, primarily in 257Roy, 270WSM and 7RM. Most hunting loads were taylored for 20 to 40° and would show pressure and, more importantly, change poi if carried on a warm weather hunt.

Randy,

Generally, between about 25 and 85 degrees Fahrenheit just about any modern smokeless rifle powder doesn't vary much--unless, of course, you're not shooting prairie dogs and really heating up the barrel. That's with loads worked up at, say, 55-75 degrees.

Thanks JB, exactly what I was looking for...stay healthy!