Author: Gun Nut 4
Subject: R-P brass
Posted: December 09 2015 at 9:49am
The No. 4 Rifle Bolthead Sizes run as follows:
Subject: R-P brass
Posted: December 09 2015 at 9:49am
The No. 4 Rifle Bolthead Sizes run as follows:
0 - .620 to .625
1 - .625 to .630
2 - .630 to .635
3 - .635 to .635
So what did you say was the number on your bolthead? See I was dump, and didn't measure for the No Go and just substitute the next bolthead, and the bolt had no problem closing. You might she if you can find someone who has a rifle with the next size up and try it. You might be surprised. I thing on my one rifle I went from 0 up to a 2, so the head space was quite excessive. An increase of .003 of an inch is not much but it may cure your blow back, and prevent the cartridge head fractures.
