Home Forums Reloading Varmint Rifles Vitavouri and temp changes

I've found a load with N140 that works well in my 22-250. Still working to refine it, but I wondered how stable the groups will be if I work up at say 40�f and shoot at 80�f. Let's say that the loads don't become too hot and unsafe, will the groups opening generally be more of a BR issue than a varmint shooting issue?

Tomorrow's weather looks favorable to load work up but cool and I don't want to waste a day.

I have found VV powders to be very stable temp. wise. I have used VV powders almost for a lot of years and have never had to change my loads as the temperatures warm or cool. Good luck with your load tweaking!

PaPa260

I use VV N140 in a 35 Whelen and, it groups the same in temperatures from 20*F - 100* F.

Welcome to the 'Fire Witnessing. I use VV 100 series powders for several calibers and I agree with what has been said. I HAVE heard however that the 500 series powders appear to be a bit temp sensitive. Check with Mule Deer (JB) on that.

Thanks for the welcome EvilTwin . I've only used N140 and N160.Both are temperature stabile and are easy to clean from my rifle bores.