Atomic Cowboy Action 38 Special 125 Gr Lead Round Nose Flat Point LRNFP. 38 Special Cowboy Action ammunition is made with only the very best components available such as reloadable brass cases double based clean burning powder and hard cast lead bullets. Specifications for Atomic 451 Cowboy Action 38 Special 125 Gr Lead Round Nose Flat Point (LRNFP) 5: Manufacturer: Atomic Ammunition Caliber: .38 Special Number of Rounds: 50 Bullet Type: Lead Round Nose Flat Point (LRNFP) Bullet Weight: 125 grain Cartridge Case Material: Brass Muzzle Velocity: 825 ft/s Application: Target Primer Style: Centerfire