HSM Subsonic .45-70 550gr Hard Cast Flat Nose, 20rd

Description

HSM Subsonic .45-70 Government ammunition loads a 550-grain hard-cast flat-nose bullet with a Hi-Tek supercoat. This load is listed at approximately 1000 feet per second from an 18-inch barrel, producing about 1,230 foot-pounds of energy. It is suited to modern lever-action, bolt-action, and single-shot rifles; a rifling twist of 1:20 or faster is recommended.

Key Specifications

• The caliber is .45-70 Government.
• The bullet weight is 550 grains.
• The bullet type is a hard-cast flat nose.
• The bullet features a Hi-Tek supercoat.
• Velocity is approximately 1000 feet per second from an 18-inch barrel.
• Muzzle energy is approximately 1,230 foot-pounds from an 18-inch barrel.
• The cartridge overall length is 2.530 inches.
• Recommended rifling twist is 1:20 or faster.
• Each box contains 20 cartridges and there are 25 boxes per case.
• This ammunition is marked as reloadable.

Built for shooters who value consistent subsonic performance and reliable feeding, this HSM load combines heavy hard-cast construction with a corrosion-resistant Hi-Tek finish. The 550-grain flat-nose profile and subsonic velocity suit applications where controlled, predictable ballistics are desired. Its design and loading make it a practical option for field use and range work in compatible rifles chambered for .45-70 Government.