Load Specifications
Load data in caliber 5.6 x 70 R with .224 | 62gr | Barnes TSX BT bullet and 7 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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 32,155 psi | 85% | 2759 fps | 98.8% |
| Accurate 4064 | <<locked>> | 84% | 32,721 psi | 87% | 2789 fps | 96.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,881 psi | 90% | 2018 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,924 psi | 90% | 2060 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 33,504 psi | 89% | 2713 fps | 97.6% |
| Vihtavuori N135 | <<locked>> | 82% | 33,054 psi | 88% | 2779 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 82% | 33,214 psi | 88% | 2756 fps | 96.2% |
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% | 30,139 psi | 80% | 2703 fps | 98.2% |
| Accurate 4064 | <<locked>> | 82% | 30,371 psi | 81% | 2720 fps | 95.7% |
| Hodgdon TrailBoss | 9 gr | 80% | 24,816 psi | 66% | 1804 fps | 100% |
| ReloadSwiss RS 14 | 9.2 gr | 80% | 24,976 psi | 66% | 1847 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,240 psi | 78% | 2598 fps | 96% |
| Vihtavuori N135 | <<locked>> | 80% | 30,951 psi | 82% | 2723 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 80% | 30,937 psi | 82% | 2694 fps | 95.3% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 7 powders for 5.6 x 70 R loaded with the .224 | 62gr | Barnes TSX BT. Accurate 4064 delivers the highest muzzle velocity at 2,789 fps; across all powders the maximum-charge window runs from 2,018 fps to 2,789 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 7 of the 7 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 62.0 gr projectile in 0.224" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. ReloadSwiss RS 14, Hodgdon TrailBoss rank at the top here: for 5.6 x 70 R with the .224 | 62gr | Barnes TSX BT 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.