Barnes TSX (Triple-Shock X) 9.3mm (.366″) 250‑grain flat‑base bullets are sold in 50‑count boxes and feature a solid copper TSX profile engineered for controlled expansion and high weight retention. The TSX design expands into multiple controlled petals to promote consistent terminal performance while retaining the majority of original mass. These bullets have a documented ballistic coefficient and sectional density that support stable flight and penetration for heavier-recoil rifle applications. Manufacturer guidance indicates best accuracy when seating between 0.03 and 0.07 inches, depending on your rifle.
Key Specifications
- Caliber is 9.3mm.
- Diameter measures 0.366 inches.
- Bullet weight is 250 grains.
- Bullet type is Flat Base (FB).
- Brand style is TSX.
- Ballistic Coefficient (G1) is 0.361.
- Sectional density is 0.267.
- Quantity per box is 50.
- Listed weight is 1.65.
- Shipping weight is 1.65.
These TSX bullets are specified for reloaders and hunters who prioritize consistent expansion, high retained weight, and reliable external ballistics. Their solid copper construction and TSX profile make them well suited for medium- to large-game field use and for shooters seeking repeatable performance from quality components. Packaged in a convenient 50‑count box, they integrate into reloading workflows and match a range of 9.3mm rifle platforms where controlled expansion and penetration are required.








