Originally Posted by
markm
Granted there are some powders that are pretty temp sensative, there's a lot of info that contradicts this. I mean.. I've seen the Davidson brothers put one round in the sun and one round in an ice chest and shoot them same POI.
Barrel temp is the biggest factor. I was reading an article (I forget where now - I think accurateshooter..?) about barrel temp regulation. And the gist of it was... if you're not regulating your barrel temp, precision powder measurements don't matter.