McKinney

As you have found, most shorter shells work fine in a Mossberg

I use mine for Practical Shotgun shooting in the UK (All we are allowed to do these days)

One UK maker supplies slightly shorter than 2 1/2" Shells which means that I can get an extra shell in my 8 shot mag

I find my Mossy will digest anything I put into it with no problems, although my friend's (which has put 10X ,more shells through it than mine) plays up much of the time with anything

Good luck I am sure you will be OK!

TH44