My most recent load is with Barnes 270 grain LRX’s pushed to 3100 mv from a 24” barrel. I need to go out sometime soon at near zero temperatures to determine my velocity loss due to low temperatures!
I got the same speed with a 270 TSX in a Mod 700 BDL SS 24" 375 H&H reamed to the 375 Weatherby. It was one wickedly flat shooter! It reminded me of the 340 Weatherby for sure. I was influenced by reading about Hal Waugh (sp?) the Bear Guide in Alaska. He claimed he always had his 375 H&Hs rechambered to get more speed for the 270 he liked to use on Bears. I was privileged to take a few head of game with the 375 H&H with Barnes 235 X, the 300 Sierra SBT, and the 270 FailSafe. No doubt it is a real killer, but with monos, no bloodshot meat (to speak of) I also must mention that I too am a big follower/reader of JOC and I always remember him saying "every Rifleman should own/use the 375 H&H in his lifetime", or something like that. Well, there ya go! i don't own one now, but love them anyway.
Believe it or not, I just shot mine across the chronograph this morning….temperature was 30 F. I was supposed to get out when it was near zero…..didn’t get it done! 🤬 I got an average of 3018 for 3 shots. A pretty substantial velocity loss from 90+ F, which I expected as I’m loading with RL 17……not recognized as a temperature stable powder. memtb
