I bought the stevens 301 last month, 20 gage with 26 inch barrel. The only problem I have had is it shots about 8 inches low at 20 yards. I thought it might possibly be the choke, bough a new choke and it shoots low also. I then placed a beartooth comb raiser on, with raised poi about 4 inches, so its still shooting low. don't know what to try next.