Thread: Brass on bolt face

Originally Posted by Bos

A build up of brass on the bolt face acts like a shim; so the firing pin has to travel further not to mention the bolt being harder to close. That doesn't look bad, but I'd clean it off and keep an eye on things in the future.

Are you seriously suggesting a tiny smudge of brass filling the low spots on that bolt would affect the length of firing pin travel and therefore ignition ?
An un measurable amount of loose brass

Originally Posted by akaroa1

Are you seriously suggesting a tiny smudge of brass filling the low spots on that bolt would affect the length of firing pin travel and therefore ignition ?
An un measurable amount of loose brass

The bolt will be in battery too be able too fire.
The case will be in the chamber as far as it can go either with or without the smudge of brass.
When fired the firing pin will have driven the case forward anyway if there was a fraction of looseness to the shoulder.
Same difference either way the firing pin will not have "travel further" than it ever had or does in that particular rifle

had it happened with brand-new factory rifles during the "break in period" but it stops happening after a couple of hundred shots give the bolt face a good clean with an old toothbrush and a bit of mild solvent like Hoppies