British 6 shot shells are also very close to 7's. A bit larger, about 6 2/3 by American sizes. Kent sells them in their Gamebore line. Especially later in the season, I'll back them up with something a little bigger in the tight barrel. But they're great pheasant loads, and have killed ringnecks with them out of 12's, 16's and 20's. Also very good prairie grouse (sharptail and chicken) loads. Early season, I'll shoot RST 7/8 oz 7's in the open barrel for prairie grouse, with an ounce of Brit 6's in the tight barrel.
