Corvalliscory
Well-Known Member
- Joined
- Aug 15, 2011
- Messages
- 286
Need some advice. My 7 Sherman Max is done. 100+ rounds fired and ADG brass fire formed twice. It's built on a Tikka action, 22inch 1in8 twist HCA barrel, etc. It's about 8- 8.5 lbs scoped.
Trying the 145gr Badlands BDG2 bullets. Seated .020 off the lands, 3.055 COAL and I tried N550 powder and CCI 250 primers. 60 grains of N550 produced about 3160 FPS and is grouping good , but it's cold out and already is starting to get some heavy bolt lift. I'd like a powder with more case fill and something to bump me over 3200 FPS and 3250 would be better. I've heard H100v will do it but that's not a temp stable powder for our west here. If that's not do able, I'd like to run the 162 ELDM bullets. No sense running 145's at the same speed I can get out of 162's IMO. I have other VV powders. Maybe N555? What should I try that is not temp sensitive for the 145-162gr bullet class and 22in barrel? I don't want to run 180+ gr bullets, so it's easier for my wife to shoot when she uses it and I'm not using it. So N555 with 145's? Or N560? Or N565 with the 162's? Just want some ideas. She shot my 28 Nosler with 195's at 3160 fine, but that rifle was 10lbs scoped. Also I cannot find the 7 Max load development thread... Has anybody tried any of this with this cartridge and bullet weights/barrel length?
Thanks, Cory
Trying the 145gr Badlands BDG2 bullets. Seated .020 off the lands, 3.055 COAL and I tried N550 powder and CCI 250 primers. 60 grains of N550 produced about 3160 FPS and is grouping good , but it's cold out and already is starting to get some heavy bolt lift. I'd like a powder with more case fill and something to bump me over 3200 FPS and 3250 would be better. I've heard H100v will do it but that's not a temp stable powder for our west here. If that's not do able, I'd like to run the 162 ELDM bullets. No sense running 145's at the same speed I can get out of 162's IMO. I have other VV powders. Maybe N555? What should I try that is not temp sensitive for the 145-162gr bullet class and 22in barrel? I don't want to run 180+ gr bullets, so it's easier for my wife to shoot when she uses it and I'm not using it. So N555 with 145's? Or N560? Or N565 with the 162's? Just want some ideas. She shot my 28 Nosler with 195's at 3160 fine, but that rifle was 10lbs scoped. Also I cannot find the 7 Max load development thread... Has anybody tried any of this with this cartridge and bullet weights/barrel length?
Thanks, Cory