have fired brass from last barrel that is too tight in the web to fit new barrel

[Uncle Ed]

Ed, Is this the same as using the Lee Bulge Buster pushing the case through the bottom of the 45 ACP Lee Factory Crimp Die? If so, doing that would probably have prevented the shoulders from growing as they did with the small base die...?

edit added: may not fix the described problem but unlikely it would hurt anything since the 308 case above the web is about 0.020" smaller than a 45 ACP. I may play with a couple cases just to see since it's unlikely to result in a significantly stuck case.

No you do not push the 7.62 case through like a bulge buster die, you use it to just size the base of the case. "BUT" some say that using the .45 acp carbide die could distort the case. Meaning the upper part of the case is not supported as it is squeezed through the carbide ring. And using the 30-06 die would support the upper part of the case body and make the case more concentric.

Bottom line, using a runout gauge on the case body after sizing with the .45 acp die would let you know if it distorted the case. Some of the Lake City cases if sized in a standard .308 die become a two handed operation. And sizing a normal case like the OP has it would just size the very bottom of the case and not distort the case. BUT the small base .308 die did the trick for the OP and a .45 acp die would be my last resort.

 

[kawsam62s]

I was thinking you do not want to trim the cases until they were fired in your chamber. The cases may get shorter when fired and if trimmed beforehand they may end up too short. Meaning the case taper between the .308 and your 6br might be more and the upper section of your cases were reduce in diameter more than needed.

hi your correct,
I did not trim the oal of the cases, I bumped the shoulder back the .003 thousands that grew from the web, the brass would chamber after the bump, after the first firing in the new chamber I will evaluate if trimming is needed
thx scott