Barnes Pioneer ammunition in .45-70 Government (part no. 32139) loads a 300-grain Triple Shock X bullet designed specifically for lever guns and revolvers rather than adapted from a rifle loading. Barnes carefully loads Pioneer for terminal performance, delivering massive expansion and weight retention for deeper penetration on tough, heavy game. The Triple Shock X’s all-copper, hollow-point design opens into four uniform petals on impact while its grooved shank reduces fouling and pressure. For hunters running a lever gun or big-bore revolver in .45-70, this rifle ammunition is purpose-built for that platform.

Key Specifications

• The chambering is .45-70 Government, a classic big-bore lever-gun and revolver cartridge.
• The bullet weighs 300 grains, a lighter-for-caliber Pioneer weight tuned for lever-gun and revolver velocity.
• The bullet is a Triple Shock X, an all-copper, hollow-point design.
• On impact the bullet opens into four uniform petals, driving massive expansion and weight retention for deep penetration.
• A grooved shank reduces fouling and chamber pressure compared to a smooth-shank monolithic bullet.
• Barnes markets this as Pioneer, engineered specifically for lever guns and revolvers.
• Cost runs about $3.19 per round, in line with premium all-copper big-bore ammunition.
• Each box holds 20 rounds, enough to confirm zero and still hunt the season.
• Ten boxes ship per case, letting hunters buy by the case for the best per-round value.

Frequently Asked Questions

Why is Pioneer built for lever guns and revolvers specifically? Barnes tunes Pioneer’s bullet weight and load for lever-action and revolver velocities and feeding, rather than adapting a bolt-rifle loading.

How does the Triple Shock X bullet expand? Its all-copper hollow point opens into four uniform petals on impact, delivering large-diameter expansion while a grooved shank keeps weight retention high.

Buy Barnes Pioneer .45-70 Gov 300gr

A lever gun or big-bore revolver deserves a bullet built for how it actually shoots, and Pioneer is engineered around exactly that platform. Order from our Lubbock, Texas gun shop and it ships fast to your door.