I have an 870 SF in a 20. Use it for birdhunting also. It does kick a bit more than my old 870, but it's about 2 lbs. lighter. I love that short barrel, it's quick as easy to carry around all day. The straight stock took a little getting used to, but I really like it now. I'm just breakin it in for my kid, he'll get it in about 10 or 12 years(after he goes thru his single shot).
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bullet placement is gun control