SALE Quick view AMMUNITION 250 RDS SUPER X 12 GA - C52137 12 GA; 250 ROUNDS OF 12GA – 3 INCH MAGNUM SUPER X SHELLS. 10 boxes of 25 = 250 rounds. It comes in a wooden Winchester case, that is in excellent condition. It is stamped 250 Rounds and Shotgun shells and in red is Winchester. $410.00 $365.00 Add to Cart Compare