Well, I always liked shooting my Sheridan .20, so I bought a 12-inch .20 barrel for my Airforce EscapeSS and some JSB Exact .20 13.73gr pellets, some NSA .20 14.9gr slugs, and some NSA .20 18.9 grain slugs. These should shoot in the mid 900+fps range from this gun as I was shooting around 890fps...