Barnes’ Pioneer line brings modern terminal performance to lever guns and duty revolvers. This .357 Magnum load launches a 180‑grain flat‑nose jacketed hollow point (JHP) at a true magnum 1,655 fps, producing more than 1,090 ft‑lbs of energy from carbine‑length barrels. The thick‑jacketed bullet opens into large, weight‑retaining petals for deep, straight‑line penetration on deer‑size game and serious defensive threats, while the cartridge’s overall length and flat‑nose profile ensure flawless feeding from tubular magazines.
 
Key Features
All‑Purpose JHP Bullet: Flat‑nose jacketed hollow point delivers wide expansion and 100 % weight retention for deep penetration.
Lever‑Gun‑Optimized Geometry: Cartridge length and nose profile cycle smoothly through tubular magazines and side‑gates.
Full‑Power Ballistics: 1,655 fps muzzle velocity flattens trajectory and produces more energy than many .41 Magnum loads.
Reloadable Brass & Clean Components: Boxer‑primed cases and temperature‑stable powder ensure reliable ignition with minimal fouling.
 
Specifications
Model Number: 32140
Caliber: .357 Magnum
Bullet Weight: 180 grains
Bullet Style: Jacketed Hollow Point, Flat Nose (lead‑core)
Muzzle Velocity: 1,655 fps (16″ test barrel)
Muzzle Energy: ≈ 1,095 ft‑lbs
Case Type: Brass, Boxer‑primed
Rounds per Box: 20
Intended Use: Medium‑game hunting, backcountry defense, personal protection
 
Competitors
Federal HammerDown .357 Mag 170 gr Bonded HP: lever‑gun‑specific bonded bullet at 1,610 fps.
Hornady LEVERevolution .357 Mag 140 gr FTX: Flex Tip bullet safe for tubular magazines and tuned for flat trajectory.
Buffalo Bore Heavy .357 Mag 180 gr JHP: high‑pressure load offering similar deep‑penetration performance.
 
Applications
Medium‑Game Hunting: Expansion plus weight retention delivers reliable, ethical kills on deer and hogs.
Backcountry & Personal Defense: Magnum energy and barrier‑blind penetration provide confidence against two‑ or four‑legged threats.
Lever‑Gun & Revolver Practice: Factory‑fresh, reloadable brass lets shooters match hunting/defense recoil and point of impact during training.
 
Barnes Pioneer 32140 unites classic lever‑action compatibility with hard‑hitting, modern bullet technology—giving hunters and defenders a dependable, flat‑shooting cartridge that feeds smoothly, shoots true, and stops threats decisively.
 
Please visit the manufacturer’s website for more information.