Remington 1100 shoots high
I picked up a 1972 made Remington 1100 12 Ga. with a plain 23/4 chamber 28 inch fixed modified choke barrel. I prefer ribbed barrels so had a new in the box 28 inch with rem chokes also 2 3/4 chamber and now it shoots 3 ft high no matter what shell I use. Any ideas or just a junk barrel? possible fixes? Also have an 870 also rem choke and lop and drop are the same on both and the 870 does not have the issue.