Load Specifications
Load data in caliber 5.6 x 70 R with .224 | 70gr | Hammer Hammer Hunter bullet and 5 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 14 and Hodgdon TrailBoss.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 33,895 psi | 90% | 2631 fps | 99.5% |
| Accurate 4064 | <<locked>> | 82% | 31,981 psi | 85% | 2602 fps | 97.1% |
| Hodgdon TrailBoss | <<locked>> | 98% | 33,301 psi | 88% | 1847 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 98% | 33,533 psi | 89% | 1890 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 34,084 psi | 90% | 2562 fps | 98.3% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 31,647 psi | 84% | 2579 fps | 99.1% |
| Accurate 4064 | <<locked>> | 80% | 29,936 psi | 79% | 2546 fps | 96.3% |
| Hodgdon TrailBoss | 8.2 gr | 80% | 25,164 psi | 67% | 1667 fps | 100% |
| ReloadSwiss RS 14 | 8.4 gr | 80% | 25,483 psi | 68% | 1709 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,182 psi | 80% | 2464 fps | 97.1% |
Recommended = one of the top powders for this cartridge and bullet combination.
This overview compares 5 powders for 5.6 x 70 R loaded with the .224 | 70gr | Hammer Hammer Hunter. Accurate 2495 delivers the highest muzzle velocity at 2,631 fps; across all powders the maximum-charge window runs from 1,847 fps to 2,631 fps. Hodgdon TrailBoss gives the best case fill at 98 %, and 5 of the 5 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (260 MPa), the top charges use 85–90 %, leaving at least 10 % headroom. The 70.0 gr projectile in 0.224" calls for a 1:6.5 twist; slower twists will usually not stabilise this weight. ReloadSwiss RS 14, Hodgdon TrailBoss rank at the top here: for 5.6 x 70 R with the .224 | 70gr | Hammer Hammer Hunter they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.