16" .308 Ruger American

[swampratt]

SR you lost me if the chamber is to long,

I should have said it is a long ways to the rifling area that the bullet contacts the Leade I think it is called and the chamber is not so long.
I am going to take more pictures of .308 chambers and cut the base of a case off and stick my camera in there and insert it into the chamber and see what kind of differences i can see with the case shoulder bottomed out in the chamber.

 

[Oklahomabassin]

You cut off the wrong end!

 

[swampratt]

Who would have thunk!

 

[magna19]

This chamber is already way too long and the diameter of my fired cases are .005" larger than in my Savage.
My savage 10 i seat the 168A max to 2.818" for .005" off the lands.
This Ruger I get no marks on the bullet until I reach 2.830" I am sure the lands are messed up a bit possibly.

I cut the barrel also and I bet all warranty is gone.
Not that I would send it anyway.
I will try short neck cases and I have some 165 game king HPBT bullets that have a very long bearing surface.
Those may give me the best chance at tighter groups..
Heck I would be happy with groups instead of shotgun pattern.

Per your measurements Savage 10 seating 2.818 + .005= 2.823 to lands. Ruger seating 2.830 to lands. The .007 difference is not the problem.

 

[swampratt]

Yep not the problem.
If I had a chamber reamer I would remove this barrel and try it

Going to make loads and go shoot before rain hits.
60 mile drive 1 way to find out

 

[GlockPride]

Why not just a new barrel for it? Not that expensive and easy to mount up.

 

[magna19]

Before you go waist a load of time on chasing this maybe you should call manufacture and tell them. They are known to do things like re- barrel, re-cut, fix , replace and sometimes you get back a firearm that has been gone over better than the production line quality.