new lot of reloader 22 in 300 rum
I just loaded some shells for my 300 rum with the guns favorite powder, rl-22 and the new powder is way hotter than the last lot that I used. I had some of my previous shells on hand and ran both through the chrono at the same session. Old load 90 gr rl 22 vel 3205 with NAB 180's single digit deviation. New powder lot, same charge and bullets, 3353 velocity with heavy extractor marks on the brass. WTF! I called Alliant and they said that new loads need to be worked up with every new batch of powder. I have been reloading for 35 years and have never seen such a thing.
Remington model 700 300 RUM LH 26" rem ss/blued receiver lam stock 215 Berger @3025/180 NAB @3300
Remington model 700 338 RUM LH 27" Broughton 5C 225NAB@3300 /300gr Berger@2830
Savage LH 22-250