The Barnes TSX (Triple-Shock X) 450 Bushmaster 275-grain Hollow Point Flat Base bullet (Barnes part no. 30628) is an all-copper monolithic bullet built for the 450 Bushmaster, a straight-wall cartridge popular in AR-platform rifles for hunting in states that restrict bottleneck calibers. The all-copper design holds together on impact rather than fragmenting, giving full weight retention and deep, straight-line penetration on big game.

Key Specifications

• .451 inch bullet diameter, matched to the 450 Bushmaster cartridge.
• 275 grain weight, a heavy-for-caliber weight built for big-game penetration.
• Hollow Point Flat Base design, built for controlled expansion and reliable feeding in AR-platform rifles.
• All-copper construction, giving full weight retention instead of fragmenting on impact.
• .16 G1 ballistic coefficient, a useful reference figure for trajectory at 450 Bushmaster ranges.
• .14 sectional density, a useful reference figure for penetration on big game.
• 20 bullets per box, sized for handloaders working up 450 Bushmaster hunting loads.

Frequently Asked Questions

What cartridge is this bullet for? 450 Bushmaster, a straight-wall AR-platform cartridge.

Is this an all-copper bullet? Yes, the TSX design is all-copper with no lead core.

How many bullets per box? 20 bullets per box.

Buy the Barnes TSX 450 Bushmaster 275gr Reloading Bullets

Load an all-copper 450 Bushmaster bullet built for deep, reliable big-game penetration. Order from our Lubbock, Texas gun shop along with the rest of the reloading bullets lineup from Barnes.