Hi David and welcome. Yes Sir, this is a full powered loading at 1325 ft/s at the muzzle of a 26 inch barrel. Cheers and happy holidays!

David, this is 1325 fps. For breaking in your AR 12 style shotgun, I recommend at least 1300 fps, but at $1 per round, this will burn a hole in your pocket pretty quickly. Here is a less expensive option for break-in at 36 cents/round and 1330 fps
budsgunshop.com/product_info.php/products_id/117650/federal+top+gun+sporting+shotgun+ammo+12+ga.+2.75+in.+1330+fps+1+oz.+7.5+sh ,
Stay safe & have a great day!

1325 FPS see *****
DETAILS
Federal Premium Vital-Shok 12 Gauge 2-3/4" 9 Pellets 00 Buck 5rds P154 00
MFR# P154 00
UPC: 029465001292
Gauge: 12
Shell Length: 2-3/4"
Shot Size: 00 Buck
Rounds Per Box: 5
*****Muzzle Velocity: 1325 fps