Barnes TSX .577 Nitro .583″ 750 grain flat-base bullets are engineered for use in appropriate large-bore rifles and reloading applications. Manufactured from 100% copper, these projectiles are designed for controlled expansion while maintaining high weight retention. The TSX profile produces expansion in a predictable pattern, and the bullets are supplied in boxes of twenty. Recommended seating depth guidance is provided by the manufacturer to optimize accuracy for a given rifle.
Key Specifications
- The manufacturer is Barnes.
- The cartridge listed is .577 Nitro.
- The bullet diameter is .583 inches.
- The bullet weight is 750 grains.
- The bullet style is a flat-base (FB) design.
- The box quantity is 20 bullets per package.
- The construction is 100% copper for controlled expansion and weight retention.
- The expansion pattern forms four petals upon proper terminal performance.
- The manufacturer recommends a seating depth between 0.03 and 0.07 inches for best accuracy on the rifle used.
These TSX bullets combine all-copper construction with a proven expansion profile to provide consistent on-target performance for large-game hunting and precision reloading. Their design emphasizes weight retention and predictable expansion characteristics, making them a solid choice for reloaders and hunters who prioritize reliable terminal performance and consistent accuracy.








