30 BR struggle is real

[Doublejake]

Bolt face

 

[Doublejake]

Did the same company that chambered your old barrel chamber your new barrel? Different reamers have different dimensions, and those different dimensions can have HUGE impacts.
One rule of thumb I’ve learned is to have the same company chamber my barrels. That way, all die settings can stay the same (which saves a lot of work).
The chamber on my new Pac-Nor barrel is identical (as far as I can measure) as my old barrel.

No Speedy did my first Barrel. I had a local smith do my second one. Same print different reamer. Second one was with my own. First time use. First barrel was polished chamber, 2nd one is not.

 

[Jayplace]

If you haven't already tried this, put a fired piece of brass in with the bolt closed and use the bore scope to see how much clearance there is between the end of the brass and the chamber actually ends.

 

[Dimner]

If you haven't already tried this, put a fired piece of brass in with the bolt closed and use the bore scope to see how much clearance there is between the end of the brass and the chamber actually ends.

I have never thought of trying that! I'm not having problems, but I always wondered how little trim I could get away with. I appreciate the tip.

 

[wildcat3d]

No Speedy did my first Barrel. I had a local smith do my second one. Same print different reamer. Second one was with my own. First time use. First barrel was polished chamber, 2nd one is not.

Speedy is the Man!