This is 12 Gauge Remington Nitro Pheasant Magnum 3" 1 5/8oz. #4 Shot. Nitro Pheasant uses Remington's own Copper-Lokt copper-plated lead shot with high antimony content, the hardest lead they make for hunting. Hard shot stays rounder for truer flight, tighter patterns, and greater penetration.This ammunition delivers superb performance and devastating knockdown power. This is a full power load that travels at 1350fps. This ammo comes packed in 25rd. boxes.