09-28-2018, 04:37 PM
soloelcap Wrote:DCM
Are you reloading or shooting factory?. If you think you have excessive head space using a .136 bolt with the brass you are using and have the tools to measure the new brass and compare to the fired brass, you may be able to bump the shoulder and use a .125 (7.62x39) bolt.
I'm using a .125 bolt in a .136 chamber with new lapua brass and it works just fine.
All chambers are different, it's the users responsibility to check and know how to measure head space.
I'm no expert and haven't been loading my own for very long but I would totally and whole heartly advice against doing this are telling others to do this.
There are probably hundreds of threads on this fourm alone of issues guys have had trying to run .125 bolt in a chamber cut for the headspace of the mrk136 bolt.
To be honest to me I think your playing with fire doing this.
Not saying I'm right but everything I have read and come to understand is you never mix the two bolt face depths up.