Description
Cor-Bon has built a solid reputation in precision ammunition, and their Performance Match subsonic line proves why. This 338 Lapua load pairs the ballistic excellence of Sierra hollow point boat tail bullets with carefully controlled subsonic velocities. You get a round that's equally at home punching tight groups on the range or delivering field performance where velocity consistency matters most.
What Makes the Cor-Bon Performance Match Different
The subsonic velocity of 1000 fps might seem modest for a 338 Lapua, but that's the whole point. Sierra's HPBT design, with its small meplat and boat tail configuration, maintains excellent ballistic coefficient even at reduced velocity. The boat tail reduces base drag significantly compared to flat base bullets, which means less wind drift, higher retained velocity downrange, and flatter trajectories than conventional designs. Every component is assembled to match-grade tolerances for shot-to-shot consistency that compounds across a string of fire.
Subsonic Performance Without Compromise
These rounds won't crack the sound barrier, which is especially beneficial when running a suppressor. No supersonic signature means quieter operation without acoustic shock, and you maintain the ballistic advantage that the 338 Lapua platform offers. The 300-grain bullet weight provides the mass needed for stable flight at lower velocities and delivers the wind-bucking characteristics the 338 Lapua is known for. The match-grade assembly approach means you're not just buying ammunition, you're getting precision components that perform consistently round after round.
Key Specifications
- Caliber: .338 Lapua Magnum
- Bullet Weight: 300 Grains
- Bullet Type: Hollow Point Boat Tail (HPBT)
- Muzzle Velocity: 1000 FPS
- Muzzle Energy: 666 ft-lbs
- Rounds per Box: 20
- Case Type: Brass
- Primer Type: Boxer
- Corrosive: No
- Reloadable: Yes
- Manufacturer Part Number: PM338S300
- UPC: 757750033832
What’s Included
- 20 rounds of factory-loaded Cor-Bon Performance Match subsonic 338 Lapua ammunition
Frequently Asked Questions
Will this subsonic ammunition work in a non-suppressed rifle?
Yes. These rounds function in any standard 338 Lapua rifle, suppressed or not. The subsonic designation just means the velocity is kept below the sound barrier for quieter operation through a suppressor. In non-suppressed rifles, you'll simply lose the acoustic advantage while keeping all the accuracy and consistency benefits of the match-grade construction.
What makes these rounds subsonic if the 338 Lapua is such a powerful cartridge?
Cor-Bon achieves subsonic performance in the 338 Lapua by carefully controlling powder charge and velocity to stay under 1125 fps (the sound barrier). At 1000 fps with a 300-grain bullet, you're trading raw velocity for consistency, reduced noise, and a stable flight path that the boat tail design optimizes at these velocities.
Are the Sierra bullets in this ammunition match-grade quality?
Yes. Sierra HPBT bullets are recognized worldwide for competition and precision shooting. They're manufactured to extremely tight tolerances, which is why they've been used to win more target competitions than all other target bullets combined. Combined with Cor-Bon's assembly standards, you get components built for consistency across every shot.
Can I reload the brass cases after firing?
Yes. These come in reloadable brass cases with standard boxer primers, making them suitable for handloaders. This gives you options after the initial shooting without committing to the cost of factory loads for every trip downrange.





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