Reloading some previously fired 45 ACP brass.
Most cases reloaded and chambered OK; several did not.
I checked the following and all within specs
Brass length Ok
full length re-sized
Bullet diam Ok
OAL within specs
Used Lee factory crimp tool with out crimping as afinal gauge which I do with all my semi auto rounds
The cases that would not fully chamber in my 1911 barrel used as a gauge
had some interference when going thru the carbide ring of the Lee crimp die
The full length resized brass went into the barrel chamber ok.
Could it be the wall thicknes of the brass neck??