Barnes Pioneer .357 Magnum 140 gr 20rd Box

Barnes Pioneer ammunition is engineered specifically for lever-action rifles and revolvers, with loading and profiles intended to feed reliably from tubular magazines and chambers. This offering lists a 140 grain projectile and is packaged as 20 rounds per box. Stated performance data includes published muzzle velocity and energy for reference in field use and shooting applications.

Key Specifications

• Caliber is .357 Magnum.
• Bullet weight is 140 gr.
• Rounds per box is 20.
• Boxes per case is 10.
• Units per case is 200.
• Declared muzzle velocity is 1695 fps.
• Declared muzzle energy is 893 ft lbs.
• Manufacturer is Barnes.
• Model family is Pioneer.
• Product type listed as Triple Shock X.

Well-suited for owners bringing lever guns or classic revolvers back into regular use, this load aims to balance consistent feeding from tubular magazines with controlled expansion and retention of mass. The packaged quantity and published ballistics make it appropriate for a range of shooting applications where reliable cycling and consistent performance are priorities.