Hammer Load Data
Our Hammer load data covers 201,560 load recipes for 38 bullets and 220 calibers. Find all bullets and reloading data below and compare the performance of different powders for each bullet and caliber combination side-by-side.

Hammer Bullets™ are precision-engineered, lead-free projectiles designed to deliver exceptional accuracy, consistent expansion, and high terminal performance for modern hunters and shooters. Developed through years of hands-on testing and ballistic innovation, Hammer Bullets were created to solve a common challenge faced by even the most advanced rifle builders: the need for a bullet that could fully match the performance potential of a custom-built rifle.
The development of Hammer Bullets began with extensive experimentation by co-founders Brian and Steve, whose passion for firearms and hunting led them to pursue a projectile that would offer optimal flight characteristics, reliable expansion, and maximum energy transfer on impact. After years of design iteration, field testing, and ballistic refinement, their efforts culminated in 2015 with the award of U.S. Patent No. 29/529,124 for their unique bullet design.
Hammer Bullets are machined from solid copper and feature a patented driving band design, which reduces barrel friction, enhances accuracy, and minimizes fouling. Upon impact, the bullets are engineered to shed petals in a controlled manner, allowing the core to continue with deep penetration—ideal for both close-range and long-range hunting scenarios. The combination of high weight retention, lead-free construction, and consistent expansion makes Hammer Bullets a top choice for ethical, high-performance hunting.
Used by hunters across North America and beyond, Hammer Bullets have built a reputation for unmatched reliability in the field. Their design supports a wide range of calibers and game types, from deer and elk to more challenging long-range applications.
Hammer Bullets represent the convergence of ballistic science, real-world testing, and a dedication to precision—offering shooters a product that performs exactly as expected, shot after shot.
Bullets Covered
38 bullets
All Hammer Load Data
.338 ARC + .338 | 128gr | Hammer Stone Hammer
.360 Buckhammer + .358 | 178gr | Hammer Stone Hammer
.25-06 Rem. + .257 | 127gr | Hammer HHT
7 mm PRC + .284 | 170gr | Hammer HHT
6.5 Creedmoor + .264 | 125gr | Hammer HHT
.25 Creedmoor + .257 | 90gr | Hammer Absolute Hammer
.264 Win. Mag. + .264 | 125gr | Hammer HHT
.360 Buckhammer + .358 | 140gr | Hammer Stone Hammer
.257 Roberts + .257 | 90gr | Hammer Absolute Hammer
.25 Creedmoor + .257 | 127gr | Hammer HHT
.300 Rem. SA Ultra Mag. + .308 | 166gr | Hammer Stone Hammer
.25 Creedmoor + .257 | 95gr | Hammer HHT
8.6 mm Blackout + .338 | 175gr | Hammer Hunter
.338 RCM + .338 | 175gr | Hammer Hunter
6.5 Grendel + .264 | 85gr | Hammer Hunter
.35 Rem. + .358 | 178gr | Hammer Stone Hammer
.375 SOCOM + .375 | 137gr | Hammer Stone Hammer
.308 Win. + .308 | 168gr | Hammer HHT
.26 Nosler + .264 | 124gr | Hammer Hunter
.375 Raptor + .375 | 137gr | Hammer Stone Hammer
.22 Creedmoor + .224 | 70gr | Hammer Hunter
.35 Whelen + .358 | 178gr | Hammer Stone Hammer
.375 Raptor + .375 | 305gr | Hammer Stone Hammer
6.5 PRC + .264 | 124gr | Hammer Hunter
About Hammer load data on XXL Reloading
This page collects every Hammer 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 Hammer 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 Hammer 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.