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Q&A · Hunting

What factors influence the choice between TSX and TTSX bullets?

April 5, 2026

Quick Answer

The choice between TSX and TTSX bullets mainly depends on the desired level of expansion, penetration, and weight retention, as well as the specific hunting application or game being targeted. TSX bullets are generally preferred for longer ranges and larger game, while TTSX bullets are suitable for closer ranges and smaller game. The choice also depends on the rifling twist rate of the barrel.

Expansion and Penetration

When choosing between TSX and TTSX bullets, consider the level of expansion and penetration required for the hunt. The TSX bullet, with its copper jacket and lead core, expands to approximately 1.5 times its original diameter at impact, while the TTSX bullet expands to roughly 1.2 times its original diameter. This increased expansion of the TSX bullet provides greater penetration, typically up to 18 inches, making it a better choice for hunting larger game at longer ranges, such as deer or elk at 200-300 yards. However, for hunting smaller game like whitetail deer at closer ranges, the TTSX bullet’s controlled expansion and deeper penetration, typically up to 20 inches, make it a better choice.

Rifling Twist Rate and Bullet Stability

The rifling twist rate of the barrel should also be considered when selecting between TSX and TTSX bullets. A faster rifling twist rate, typically 1:7 or 1:8, is better suited for the TSX bullet, while a slower rifling twist rate, typically 1:9 or 1:10, is more suitable for the TTSX bullet. A faster twist rate helps to stabilize the bullet and prevent excessive spin, which can cause the bullet to wobble or destabilize in flight. This is particularly important when hunting at longer ranges, where bullet stability is crucial for accurate shot placement.

Weight Retention and Bullet Design

Weight retention is also an important factor to consider when choosing between TSX and TTSX bullets. The TSX bullet typically retains around 90-95% of its original weight upon impact, while the TTSX bullet retains around 95-98%. The TTSX bullet’s copper jacket and lead core design help to retain more weight and provide deeper penetration, making it a better choice for hunting larger game. However, for hunting smaller game, the TSX bullet’s moderate weight retention and expansion characteristics make it a suitable choice.

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