Barnes TSX Bullets .303/7.65mm .311" 150 gr FB 50/ct
$46.74
The Barnes TSX .303/7.65mm .311" 150-grain flat-base bullets are a solid choice for reloaders working up loads for classic European rifle calibers and wildcats. Built from 100 percent copper, these all-copper projectiles are engineered to deliver reliable expansion and deep, straight-line penetration on medium to large game—ideal if you're handloading ammunition for vintage rifles or modern builds chambered in .303 British, 7.65×55 Swedish, or similar bores. Each box contains 50 bullets, ready to seat into your brass and powder charge.
TSX bullets are known for their controlled expansion design. Upon impact, the bullet sheds four razor-sharp petals that create a large wound channel while the solid copper core continues to penetrate bone and heavy tissue. Because the bullet retains its original weight—100 percent retention—you get both the stopping power of expansion and the deep reach needed for confident one-shot performance in the field. The .311" diameter suits .303 and 7.65mm rifle chambers, so verify caliber compatibility with your firearm before loading.
Accuracy with TSX rounds typically improves with seating depth between 0.03 and 0.07 inches off the rifling, depending on your specific rifle's bore and jump tolerance. Finding the sweet spot for your gun will take a bit of load development, but most shooters report consistent groups once dialed in. For hunters and handloaders who trust all-copper, premium ammunition components, the TSX remains a time-tested option for taking game cleanly and reliably.
Key Features
- 100 percent copper construction for superior reliability and consistency
- Controlled expansion with four petals and deep penetration capability
- 100 percent weight retention for maximum energy transfer
- Flat-base design suitable for lever-action and bolt-action rifles
- Seating depth flexibility (0.03–0.07" range) accommodates different rifle specifications
Specifications
| Caliber | .303/7.65mm |
| Bullet Diameter | .311" |
| Weight | 150 grains |
| Base Style | Flat Base (FB) |
| Quantity | 50 bullets per box |
| Construction | 100% copper |
Frequently Asked Questions
What rifles does the .311" diameter fit?
The .311" diameter is sized for .303 British, 7.65×55 Swedish, and similar European rifle calibers. Always verify that your specific rifle's chamber accepts .311" bullets before loading. Undersized or oversized ammunition can cause dangerous pressure spikes or accuracy problems.
How much should I seat these bullets off the lands?
Barnes recommends a seating depth of 0.03 to 0.07 inches from the rifling, depending on your rifle. You'll need to test different depths to find the best accuracy in your particular gun. Start at the longer end of the range and work backward, checking pressure signs and group sizes as you go.
Are these bullets suitable for hunting?
Yes. The TSX design is engineered for hunting performance, with controlled expansion and deep penetration for reliable one-shot kills on medium to large game. The 150-grain weight and all-copper construction are well-suited to most .303 and 7.65mm rifles used in field conditions.
What does 100 percent weight retention mean?
Weight retention means the bullet doesn't shed petals or fragments and lose significant mass during expansion. All 150 grains of the bullet continue through the animal, maximizing penetration depth and energy dump—important for ethical, reliable kills.
