well the 28" is the industries standard pretty much.my buddy has a extrema with a 24" barrel in my opinion way to short and loud.my choice was between the extrema and benelli sb2 i chose the sb2, lighter, faster and clean up is a breeze you can get away with just swabin the barrel all the gas fouling ect goes out the barrel.and it will shoot 2 3/4" clays and 3 1/2 "mags back to back without a hickup once you shoot a few mags through it to loosen it up.the inertia system is awsome a little more kick but worth the reliability. both about the same$.