Ive heard multiple reports of 2 shells having issues in 2 1/2-2 3/4 chambers. How are these going to fare in 3 chambers which most modern pump guns come with? Any bridging or clumping if shot would seem to be more likely than not if gas escapes and causes the shot to distort. That was the explanation for the 2 problems.

On the plus side I knew a few hunters who loved trying to get an extra shell up the snout by trimming 2 3/4 hulls down to 2 1/2 to get three in the tube instead of the normal two. Like they could do kill more game if they only had a four shot instead of a three shot.