I shoot a 2 3/4 brenneke rifled slug out of my 12. Blasts a BIG whole and literally knocks them down. I don't see an issue at all. Seems to be a thing with getting bigger shells. I have only ever shot 2 3/4 because that's what I was sold by the gunshop my first trip there. Never had a problem with power.

The 2 3/4's will group nicely at 100yds no problem.