After HBN coating mine, they range from 1.504" to 1.508". They are a touch shorter after tumbling in media, but not a ton.Sounds good to me. What twist barrel do you have? Berger advertizes 1 in 8 minimum. What's the overall length for those bullets? I've seen some numbers but I like to see what they actually measure.
I worked up to 49 grains, saw pressure around 48-48.5 in my load work up. Your range sounds good, you may end up goung slightly higher depending on what brass you use, your gun, etc.I just got some 156 Bergers in. What load range would y'all try? Thinking about 45.5-47. 26" heavy Palma bartlein and Nucleus action.
Peterson's SRPI worked up to 49 grains, saw pressure around 48-48.5 in my load work up. Your range sounds good, you may end up goung slightly higher depending on what brass you use, your gun, etc.
Especially when loading the heavies with a slow powder like RL26. I don't even get crunching at 48.0 grns. I did another round starting with new brass between 45-48 grns and got the same results as using fire formed brass. Oddly 47.0 grns gives me the exact same velocity as the load I shot a week ago. I think there is a good wide node right around there. Clocking 2766 at 20 feet from chrono. My 140 Berger Hybrid Target Load shows 2769. ?Hornady brass has the most capacity and should give he most velocity. I know it sucks but the extra capacity helps.
Barrel length?Getting 2925 with 140 Berger EH with 46.3 gr RL26 in Lapua brass.
I've had 3 or 4 lots of RL26 now. It has never clocked the same. Add that to the fact it seems pretty temp sensitive and I get some crazy wide swings.
Shot this load at 85 degrees for the numbers above. Might get used for and antelope hunt where temps with more than likely hover around 95% in the afternoon. That should be exciting!