Just got my hands on a 1100 Skeet.

Serial No indicates 1978.
It has a skeet barrel with a port adjustment screw.
I have another barrel which is on the way to me which is 2-3/4" with a Mod choke
Will be mainly using 7/8 oz for clays and 1-1/8 oz loads for hunting.
I would also like to use 1-1/2 oz 2-3/4" Mini Mag shells for the occasional Fox.
Would such loads wreck the action?