HSM SUBSONIC 45-70 Gov 550gr HCFN 20rd Box

HSM Subsonic .45-70 Government ammunition is loaded with a heavy 550-grain hard-cast flat nose bullet featuring a Hi‑Tek Supercoat. The round is marketed as subsonic and is offered in 20-round boxes, making it suitable for applications where a heavy, slower projectile is desired. This offering is reloadable and intended for use in modern lever-action, bolt-action, and single-shot rifles.

Key Specifications

• Caliber is .45-70 Government.
• Bullet weight is 550 grains.
• Bullet construction is hard-cast flat nose.
• Bullet finish is a Hi‑Tek Supercoat.
• Packaging is 20 rounds per box.
• Case quantity is 25 boxes per case.
• This ammunition is reloadable.
• Cartridge overall length is 2.530 inches.
• Recommended rifling twist is 1:20 or faster.
• Recommended platforms include modern lever-action, bolt-action, and single-shot rifles.

This HSM load delivers a heavy, coated hard-cast bullet in a subsonic-design package for shooters who need a slow, substantial projectile for controlled-velocity applications. The Hi‑Tek coating aids in reducing lead fouling, and the long, flat-nose profile works with a wide range of modern single-shot, lever, and bolt rifles. Offered in convenient 20-round boxes and reloadable for handloaders, this ammunition is a practical choice for serious shooters who prioritize consistent performance and reliable feeding in compatible platforms.