Discreet Ballistics Load Data
Our Discreet Ballistics load data covers 4,744 load recipes for 4 bullets and 53 calibers. Find all bullets and reloading data below and compare the performance of different powders for each bullet and caliber combination side-by-side.
Discreet Ballistics is a specialized ammunition manufacturer focused on developing high-performance subsonic ammunition for suppressed firearms. The company is known for designing cartridges that operate reliably below the speed of sound while maintaining strong terminal performance and consistent accuracy. This makes their products particularly well suited for applications where low noise and minimal signature are important, such as suppressed shooting, hunting, and certain tactical uses.
A key characteristic of Discreet Ballistics ammunition is its emphasis on heavy-for-caliber bullets and carefully selected powder combinations. These loads are engineered to deliver stable subsonic velocities while ensuring reliable cycling in compatible semi-automatic firearms and consistent ballistic performance. The company places strong focus on internal ballistic efficiency so that subsonic loads produce predictable pressures and velocities across different barrel lengths.
Discreet Ballistics is especially well known in the .300 AAC Blackout market, where subsonic ammunition is widely used with suppressors. Their product lineup also includes ammunition for other calibers commonly used in suppressed platforms. In addition to factory ammunition, the company’s designs and bullet concepts have influenced the development of modern subsonic projectiles and specialized expanding bullets.
Overall, Discreet Ballistics has built a reputation for producing purpose-built subsonic ammunition that balances quiet operation, reliable function, and effective terminal performance for shooters who require discreet and consistent results.
Bullets Covered
4 bullets
All Discreet Ballistics Load Data
.300 AAC Blackout + .308 | 188gr | Discreet Ballistics Selous Machined Expander
.30-06 Spring. + .308 | 188gr | Discreet Ballistics Selous Machined Expander
.338 Rem. Ultra Mag. + .338 | 280gr | Discreet Ballistics Recce Machined Solid Copper
7.62 x 39 (.308) Russian + .308 | 188gr | Discreet Ballistics Selous Machined Expander
7.5 x 55 Swiss + .308 | 188gr | Discreet Ballistics Selous Machined Expander
.38 Special + .355 | 121gr | Discreet Ballistics Selous
.308 Win. + .308 | 188gr | Discreet Ballistics Selous Machined Expander
.338 Blaser Mag. + .338 | 280gr | Discreet Ballistics Selous Machined Expander
.300 Savage + .308 | 188gr | Discreet Ballistics Selous Machined Expander
.300 RCM + .308 | 188gr | Discreet Ballistics Selous Machined Expander
.300 Rem. SA Ultra Mag. + .308 | 188gr | Discreet Ballistics Selous Machined Expander
.30-378 Weath. Mag. + .308 | 188gr | Discreet Ballistics Selous Machined Expander
About Discreet Ballistics load data on XXL Reloading
This page collects every Discreet Ballistics bullet we hold reloading data for, grouped by caliber and bullet weight. Each caliber and bullet combination links to a detail page with powder-by-powder load recipes: powder brand and type, start and maximum charge weight in grains and grams, case fill ratio, calculated peak chamber pressure, muzzle velocity and the barrel length the load was computed for.
Unlike a manufacturer's own tables, our Discreet Ballistics data is generated with an inner-ballistics engine across the full powder range, so you can compare many powders side by side for the same bullet instead of the handful a single load manual prints. Charge weights, pressures and velocities are modelled consistently, which makes cross-powder and cross-caliber comparison meaningful when you work up a load.
Use the caliber and bullet-weight filters above to narrow the list, switch to the Bullets tab to browse the Discreet Ballistics product range, and open any combination to see the full load table. All data is calculated reference data for experienced handloaders: always start at the minimum charge, work up carefully in your own rifle, and cross-check against current published data before firing.