King's warning regarding checking the end of the case is important.
This image was taken by Will Evans; 2 1/2" chamber Parker intended for use with 2 5/8" roll-crimped shells
2.5" chamber 20g Stevens 345
67mm case left - 65mm right
Thoughts on long shells in short chambers are here about 1/3 down
https://docs.google.com/document/d/1...vwLYc-kGA/edit