I bought a sx3 over the summer. 3 1/2 chamber After I bought it I started to regret spending that much money on a gun. But now after hunting with it over winter I have no regrets. You will not find a good semi-auto for 600 unless you go with a used one. My hunting partner shoots a Browning Gold Hunter that gun feels like it is 2 to 3 times more heavier than my sx3. Infact after he shot my gun a little bitand nowhe is going buy a sx3.