Grizzly Ammo 45-70 Gov +P 420gr Gas Check Ammunition - 20 Rounds

The Grizzly Ammo GC45/70+P7 delivers devastating terminal performance in a premium +P loading designed for serious hunting applications. This 420-grain wide long nose gas check cartridge transforms the classic 45-70 Government into a modern powerhouse capable of taking the largest North American game.

What Makes This Different

This +P loading pushes the 420-grain projectile to velocities significantly higher than standard 45-70 loads, generating substantially more energy downrange. The wide long nose design maximizes wound channel diameter while maintaining excellent penetration through heavy bone and muscle. Gas check construction prevents lead fouling and maintains consistent accuracy shot after shot, unlike standard cast bullets that can degrade barrel performance over extended shooting sessions.

Key Features

• 420-grain wide long nose bullet design for maximum tissue damage and deep penetration
• +P loading generates approximately 2,400+ ft-lbs of muzzle energy
• Gas check construction eliminates lead fouling and extends barrel life
• Premium brass cases engineered for +P pressures and multiple reloads
• Consistent powder charges ensure shot-to-shot velocity uniformity
• Compatible with all modern 45-70 rifles rated for +P ammunition
• 20 rounds per box packaging for convenient range sessions or hunting trips

This ammunition excels in hunting scenarios requiring deep penetration and reliable expansion. The heavy 420-grain bullet maintains trajectory better than lighter alternatives at extended ranges, while the +P velocity ensures adequate expansion even through heavy winter coats or tough hide. Weather-resistant primer sealing prevents moisture ingress during extended hunts in adverse conditions.

Technical Specs

• Caliber: 45-70 Government +P
• Bullet Weight: 420 grains
• Bullet Type: Wide Long Nose Gas Check
• Case Material: Premium brass construction
• Primer: Large rifle, weather-resistant sealed
• Quantity: 20 rounds per box
• Case Configuration: 10 boxes per case (200 total rounds)
• Recommended for: Modern rifles only, not trapdoor actions

This premium +P loading represents the pinnacle of 45-70 performance for hunters who demand maximum effectiveness. The combination of heavy bullet weight, increased velocity, and gas check construction delivers results that standard pressure loads simply cannot match.