The Federal Fusion Subsonic .45-70 Government 300-Grain Bonded Soft Point Brass 20-round box is specialized centerfire rifle hunting ammunition engineered explicitly for suppressed big-game hunting, lever-action rifles, and low-recoil harvesting. Standard high-power .45-70 Govt hunting cartridges generate a sharp supersonic crack and heavy felt recoil that can disrupt hunting areas and prove uncomfortable over extended range sessions. Federal overcomes these low-velocity hunting limitations by tuning the powder formulation to cap muzzle velocity at 1,000 FPS—keeping the heavy 300-grain projectile safely under the sound barrier while outputting 666 ft-lbs of energy and significantly reduced recoil.
A major engineering hurdle with subsonic hunting ammunition is securing reliable expansion at impact speeds below 1,000 FPS. Federal solves this by utilizing an electrochemically bonded jacket and pressure-formed core where the copper jacket is molecularly fused to the lead core. This prevents jacket-core separation when contacting tough hide and bone. Additionally, the skived soft-point nose is specially programmed to peel back at reduced velocities, driving wide wound expansion and maximum kinetic energy transfer directly into vital organs.
Designed with a flat-nose soft-point profile, this cartridge ensures complete feeding safety in tubular magazines standard on lever-action repeaters like Marlin 1895 platforms. Built with clean-burning propellants to minimize carbon buildup inside suppressor baffle stacks, every round is assembled in factory-fresh, reloadable virgin brass with Large Rifle Boxer primers, ensuring reliable chamber sealing, smooth extraction, and uniform pressure bounds across every shot.
Key Benefits
- Subsonic Suppressor Optimization: Capped at 1,000 FPS to eliminate the supersonic crack in silencer-equipped lever guns.
- Low-Velocity Bonded Expansion: Molecularly fused jacket and specialized nose skiving guarantee wide terminal mushrooming at subsonic speeds.
- Tubular Magazine Safe: Flat-nose soft point geometry ensures complete mechanical safety in lever-action tube magazines.
- Reduced Recoil & Carbon: Tamed recoil impulse and clean-burning propellants preserve silencer baffle life and increase shooter comfort.
Technical Specification
- Caliber: .45-70 Government
- Bullet Type/Weight: Molecularly Bonded Soft Point (SP) | 300 Grain
- Ballistics: 1,000 FPS Muzzle Velocity | 666 ft-lbs Muzzle Energy | .290 BC
- Casing/Primer: Precision-Drawn Reloadable Virgin Brass | Large Rifle Boxer Primer | Non-Corrosive
- Logistics: 20 Rounds Per Box | Federal Fusion Subsonic Series
- Dimensions: Standard .45-70 Govt SAAMI Geometry | SKU: F4570FS1SUB
- Application: Suppressed Big Game Hunting, Whitetail Deer, Low-Recoil Range Practice
- Standards: SAAMI Compliant | Federal Ammunition Quality Control Standards
When you are pursuing big game with a suppressed lever-action rifle, having subsonic ammunition engineered to expand reliably without the loud supersonic crack is crucial. Harvest game quietly and with complete terminal confidence using Federal Fusion Subsonic .45-70 Govt 300gr Bonded Soft Point ammunition—backed by trusted service and available now at SMKW.
