Originally Posted by ed good
not all that diff...that if you pound away at an old light weight 2 1/2" fox or Ithaca field gun with 1 1/8 2 3/4" loads, you will eventually crack the stock heads of said gun...

open dim chambers, now...

an shoot one oz loads, goin out at 1200 fps or less...

This is going to come as a shock (to you, ed) I’m sure, but, not every chamber can safely be lengthened. Further, it is entirely avoidable with a little common sense applied to ammunition that is used.

Best,
Ted