Originally Posted by
Robinhood
I'm sorry if I find this amusing. How many rifles have you seen that were destroyed by head space being a few thousands out of spec? ZERO.
Misinformation is all over the internet. You could present your position like below but implying that there is going to be a catastrophic event is somewhat irresponsible.
If head space is too short the bolt will not close so it can't be fired. If it is too long it will either have a light primer strike with no ignition or it will ignite and push the primer out.
The worst case scenario would be case head separation but there would be other factors involved. Similar to over sizing brass.
There is no magic here. Head spacing is a dimensional thing. The No Go gauge has an increased length from the base to the datum on the shoulder. It will indicate that the chamber is correct by the bolt not closing or excessive if the bolt does close. A well thought out shim accomplishes the same thing with the exception is that you can control the length separation between the go and the no go. The only thing is you need to have some kind of understanding of small differences in dimensions and how to check them.
Change my mind.
Bookmarks