Problem with bought "once fired" cases

[pothunter]

I think he means the sized brass does chamber if laid across the feed ramp but won’t chamber if he inserts into mag
It will chamber from mag if the case as a bullet fitted
The problem is with the feed angle etc
I

Oh dear, the brass has had a pretty hard work out then with the amount of resizing it has gone through and the shoulders will have gone back a fair distance.