MAELTY
Active Member
The gun: Win Mod 70 7mmWSM (factory barrel, pillar bedded and tiggerwork done)
Outside neck dimension of new, unfired cases: .316
Outside neck dimension of fired case: .324
Outside neck dimension after resizing using RCBS dies: .314
Outside neck dimension when loaded: .316
These numbers are an average of 20 cases.
When using 162 AMAX's and 72 grs of H1000 the gun shoots .75" @ 100 on most days.
Questions:
1) Are these dimensions within the ballpark?
2) When I use my Redding bushing die (.314 though they come out at .312 which Redding says can happen on there tech site) the loaded shells still measure .316 on the neck and the gun produces the same results.
Am I using the correct bushing?
Thanks
Tom
Outside neck dimension of new, unfired cases: .316
Outside neck dimension of fired case: .324
Outside neck dimension after resizing using RCBS dies: .314
Outside neck dimension when loaded: .316
These numbers are an average of 20 cases.
When using 162 AMAX's and 72 grs of H1000 the gun shoots .75" @ 100 on most days.
Questions:
1) Are these dimensions within the ballpark?
2) When I use my Redding bushing die (.314 though they come out at .312 which Redding says can happen on there tech site) the loaded shells still measure .316 on the neck and the gun produces the same results.
Am I using the correct bushing?
Thanks
Tom