The steel loads serious waterfowlers depend on has been driven to new heights of performance. Remington NITRO-STEEL. Now with additional hard-hitting higher velocity offerings. Premier zinc-plated 100% round pellets fly straight delivering true close to long-range pattern performance. And NITRO-STEEL is fully compatible with aftermarket ported and wad-stripping chokes. It's a proprietary blend of components that produces more dead birds than any other load year after year.