Buffalo Bore Ammunition Pistol 454 Casull 360 Gr Lead Wide Nose LWN 20. When loaded to its full pressure potential the 454 Casull can become unreliable and unpleasant to shoot and at upper pressure levels heavy bullets tend to jump crimp tying up the cylinder. The 360-grain bullet at 1425 fps is very powerful comfortable to shoot and totally reliable. At this level these bullets give up nothing in killing performance. Specifications for Buffalo Bore Ammunition 7C/20 Pistol 454 Casull 360 Gr Lead Wide Nose (LWN) 20: Manufacturer: Buffalo Bore Ammunition Caliber: .454 Casull Number of Rounds: 20 Bullet Type: Lead Wide Nose (LWN) Bullet Weight: 360 grain Cartridge Case Material: Brass Muzzle Velocity: 1425 ft/s Application: Protection Primer Style: Centerfire What is Buffalo Bore Ammunition 7C/20 Pistol 454 Casull 360 Gr Lead Wide Nose (LWN) 20 good for? The manufacturer thinks that it is best for protection.