Gunsmithing SAAMI v. CIP Reamer (?)

[Wannashootit]

Any difference of practical significance between a CIP spec vs. SAAMI reamer in .260?

Looked at the prints and dimensions all seemed to be the same or within a tenth- all within tolerances. But, reamer/case design ain't in my wheelhouse- so thought it prudent to double check here...

Thanks in advance.
T

 

[DAVETOOLEY]

Shouldn't be any difference. With that said you don't want a SAAMI chamber. Lead angle is too severe.

 

[Wannashootit]

Thanks, Dave. Got the reamer from a private party, cheap (new PTG).
This'll be a hunting rifle- is there that much difference in performance with the spec (3 degree?) throat and 1-1/2?

I planned on getting a uni-throater anyway for more freebore; thinking out loud (and setting myself up, no doubt...) if I special ordered a throater with 1-1/2 degrees- wouldn't that lessen the throat angle somewhat, even if it didn't get it all the way down to 1-1/2 degrees as it extends the lead?

 

[DAVETOOLEY]

For a decade I built 260 hunting rifles and they never ever shot well. The last one with a SAAMI chamber that came back I had the reamer reground, set the barrel back. Then I took it to the range. I knew immediately it was shooting better. The SAAMI web site is down right now to look at a few things but at those shallow angles the diameter of the free bore also comes into the equation.