Federal Premium Power Shok 16 Gauge 12 Pellets Power Shok Buckshot Centerfire Shotgun Ammo, 1 Shot, 5 Rounds, F164 1B

The company says this is due to the heavier payloads and the inclusion of the Triple Plus wad system but consumers tell them the rounds perform just as well without the need for choke-limiting devices or restrictive choke tubes.