I'd recommend the 1100 on a 12 ga receiver (not an 1100); they shoot well, and the gas action plus the weight of the gun will help to absorb the recoil you'll get shooting a lot of rounds close together.
Put a good recoil pad on it, and you'll be able to put a lot of rounds down range with minimal discomfort.
Put a good recoil pad on it, and you'll be able to put a lot of rounds down range with minimal discomfort.