Barnes Triple-Shock X (TSX) 45-70 Caliber 300 Grain Flat Hollow Point Lead-Free Bullets - Box of 20

Barnes Triple-Shock X (TSX) bullets in 45-70 caliber are engineered for hunters who demand reliable, deep-penetrating performance on big game. Built from 100 percent copper and loaded at 300 grains with a flat hollow point design, these lead-free rifle bullets are built to expand consistently on impact while retaining full weight for maximum energy transfer through bone and tissue. The TSX has earned its reputation among serious hunters pursuing deer, elk, and other large game where a decisive, one-shot kill matters.

The engineering behind the TSX centers on controlled expansion that produces four razor-sharp petals during impact. This geometry cuts deep while the solid copper construction ensures the bullet stays intact—no core-jacket separation, no weight loss. For reloaders working 45-70 rifles, that consistency translates to predictable ballistics and terminal performance you can count on in the field.

Accuracy with the TSX depends on your specific rifle and seating depth. Barnes recommends experimenting with seating between 0.03 and 0.07 inches from the lands to find what your gun prefers. That small window of adjustment is well worth the time investment when you're developing loads for hunting ammunition. Each box contains 20 bullets, giving you plenty to work up loads and practice before the season opens.

Key Features

• 100 percent copper construction—lead-free and legal in all hunting jurisdictions
• 300 grain flat hollow point design for reliable expansion and deep penetration
• Four-petal expansion geometry cuts effectively through heavy bone and tissue
• Full weight retention ensures maximum energy delivery to the target
• Consistent performance across a range of velocities typical for 45-70 rifles

Specifications

Frequently Asked Questions

Are Barnes TSX bullets legal for hunting everywhere?

Yes. Because they're 100 percent copper and lead-free, TSX bullets comply with all hunting regulations, including those in areas with lead ammunition restrictions.

What game is the 45-70 TSX 300 grain suitable for?

The 300 grain flat hollow point is designed for big game hunting, including deer, elk, and other large animals where deep penetration and reliable expansion are required.

How do I find the right seating depth for my 45-70 rifle?

Barnes recommends experimenting with seating between 0.03 and 0.07 inches from the lands. Start at one end of that window and work up to find what your specific rifle shoots most accurately. This small variation can make a significant difference in group size.

Will the TSX bullet retain its weight during impact?

Yes. The TSX is designed to retain 100 percent of its original weight during expansion, meaning no fragment loss and all the energy goes into penetration and wound channel creation.