The Buffalo Bore Heavy .44 Magnum 300gr load (Buffalo Bore part no. 4B20) drives a 300-grain jacketed flat nose at 1,300 fps. Buffalo Bore designed it for super deep penetration at revolver speeds and lists it for big game up to 1,000 pounds. At handgun speeds it should deliver about three feet of penetration in muscle and bone, while at rifle speeds the bullet mushrooms and penetrates closer to two feet, according to Buffalo Bore. Buffalo Bore recorded 1,330 fps from a 6-inch Ruger Super Blackhawk and 1,770 fps from an 18.5-inch Marlin 1894.

Key Specifications

• Chambering is .44 Magnum, the cartridge this Heavy load is built for.
• Bullet weight is 300 grains, the weight Buffalo Bore lists on the item header.
• The bullet is a jacketed flat nose, listed as J.F.N. on the item header.
• Muzzle velocity is listed at 1,300 fps, the headline number for the load.
• Muzzle energy is listed at 1,126 ft-lbs, Buffalo Bore’s published figure.
• From a 6-inch Ruger Super Blackhawk the load measured 1,330 fps, a revolver reading.
• From an 18.5-inch Marlin 1894 it measured 1,770 fps, a lever-gun reading.
• Each box holds 20 rounds, the pack size Buffalo Bore lists for this load.

Frequently Asked Questions

Is this load suitable for aluminum or scandium revolvers? No. Buffalo Bore recommends it for all-steel revolvers and rifles and says it is not suitable for scandium or aluminum alloy revolvers.

How deep does the bullet penetrate? Buffalo Bore says to expect about three feet of penetration in muscle and bone at handgun speeds and roughly two feet at rifle speeds, where the bullet mushrooms more.

What game is it listed for? Buffalo Bore lists it for big game up to 1,000 pounds.

Buy the Buffalo Bore Heavy .44 Magnum 300gr Jacketed Flat Nose Ammo, 20-Round Box

Buffalo Bore built this .44 Magnum load for deep penetration at revolver speeds, and the bullet expands more at rifle speeds. Order it from our Lubbock, Texas gun shop with the rest of Buffalo Bore‘s handgun ammunition for fast, insured shipping to your door.