push thru die

[Rick459]

Yes USGI mags. Bushmaster and Colt. This brass is mostly once fired machine gun brass.

i have found that the metal feed lips on a metal magazine will cut into the rim of the .223 causing burrs that make them stick in my .223 case gauge. that"s why i swiched over to polymer mags. before i switched over to the polymer mags i would just chuck the damaged into my drill press and run sand paper around the rims..
Rick

[W.R.Buchanan]

Salfter: if you spray some Dillon Case lube on your cases before you run them thru the Bulge Buster it makes it much easier.

Also set the die up to where the case head is just starting to go thru the die when the press cams over center at the bottom of it's travel. That is where there is the most resistance and where the press has the highest mechanical advantage.

These two things will help you a lot.

Randy

[Don Fischer]

Boy am I lost! Is the head bulging or the rim getting nicked? I've never heard of this problem before and I don't use any cases fired through a full auto weapon either. Generally speaking, most case's are to inexpensive for me to have to re-size a case itself?

[W.R.Buchanan]

Don there is a bulge created just in front of the web of the case where it thins out. This is caused by firing in a looser or "Unsupported Chamber."

All Auto Pistols have an Unsupported Chamber to some degree, they have to in order to have a place for the extractor to engage the rim of the case.. Only a revolver chamber completely supports the cartridge.

That all there is to it.

Randy