I wondered about that one too Larry.

Two things to keep in mind any time you shoot a shell longer than the chamber is;
1st, that the load is appropriate for the gun with the shorter chamber.
2nd, is that the loaded shell does not enter the forcing cone restricting opening of the crimp, there must be clearance between the end of the loaded shell & the cone allowing free opening of the crimp.


Miller/TN
I Didn't Say Everything I Said, Yogi Berra