Hi, i recently purchased a Winchester 2200 shotgun in a 30'' full choke barrel chambered for 2 3/4. I'm wondering if I can use steel shot in this firearm. At the store i asked about this and was told it's more to do with the much older shotguns, this one was labelled as being a 1991 model. I'm new to firearms and after reading more about this i'm not sure what the actual deal is. Most anecdotal accounts are of people who actually have used steel shot in their older shotguns with no perceptible problems. And lots of second hand information saying this is a big no no. Am i restricted to size #2 and smaller due to full choke? This firearm was intended for Duck/Geese/Upland hunting. I didn't realize how expensive the alternative non-toxic shot was, such as Kent Tungsten Matrix. $45-50 a box seems very expensive to learn on. The savings of purchasing a used firearm are null if i cannot fire it at a reasonable price for practice or it will not work for what i wanted to use it for. I have read lots of posts all over with some saying full choke is all they use and some saying Mod choke is all they use. It's all very confusing for a newcomer. Any info would help, thanks a lot.