Remington Nitro Steel High Velocity Shotshell Ammunition Specifications and Features:
Remington NS12M3
12 Gauge
3" Shell Length
1-1/4 Ounce
Zinc Plated Steel Shot
#3 Size
Plastic Hulls
Reloadable
Compatible with Aftermarket Ported/Wad-Stripping Chokes
Muzzle Velocity: 1450 fps
Uses: Hunting Migratory Birds
25 Rounds

Randy, this load travels at a Muzzle Velocity of 1450 ft/s - Shotgun Shot Weight: 1 1/4 oz - Shot Material: Zink-Plated Steel. Cheers and stay safe!

1450fps on this one just luke the other for this particular line of high velocity ammo the muzzle velocity is the same as the shot weight is the same,, reference the table on Remington website
remington.com/ammunition/shotshell/waterfowl-loads/nitro-steel-high-velocity