Load Specifications
Load data in caliber 5.6 x 70 R with .224 | 65gr | Peregrine Glider GRM bullet and 15 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% | 32,880 psi | 87% | 2703 fps | 99% |
| Accurate 2495 | <<locked>> | 84% | 33,663 psi | 89% | 2733 fps | 99.2% |
| Accurate 4064 | <<locked>> | 84% | 33,098 psi | 88% | 2726 fps | 97% |
| Accurate 4064 | <<locked>> | 84% | 31,763 psi | 84% | 2700 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,866 psi | 90% | 1946 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,605 psi | 89% | 1946 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,011 psi | 90% | 1991 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,692 psi | 89% | 1988 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 33,721 psi | 89% | 2648 fps | 97.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 32,895 psi | 87% | 2635 fps | 97.6% |
| Vihtavuori N135 | <<locked>> | 82% | 33,634 psi | 89% | 2720 fps | 99.1% |
| Vihtavuori N135 | <<locked>> | 82% | 32,619 psi | 87% | 2700 fps | 98.9% |
| Vihtavuori N140 | <<locked>> | 82% | 33,852 psi | 90% | 2700 fps | 97.2% |
| Vihtavuori N540 | <<locked>> | 82% | 33,663 psi | 89% | 2697 fps | 96.5% |
| Vihtavuori N540 | <<locked>> | 82% | 32,764 psi | 87% | 2680 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% | 30,763 psi | 82% | 2651 fps | 98.5% |
| Accurate 2495 | <<locked>> | 80% | 29,356 psi | 78% | 2621 fps | 98.1% |
| Accurate 4064 | <<locked>> | 80% | 29,109 psi | 77% | 2615 fps | 95.3% |
| Accurate 4064 | <<locked>> | 82% | 29,718 psi | 79% | 2641 fps | 95.7% |
| Hodgdon TrailBoss | 8.6 gr | 80% | 25,193 psi | 67% | 1749 fps | 100% |
| Hodgdon TrailBoss | 8.6 gr | 80% | 24,932 psi | 66% | 1745 fps | 100% |
| ReloadSwiss RS 14 | 8.7 gr | 80% | 25,034 psi | 66% | 1781 fps | 100% |
| ReloadSwiss RS 14 | 8.7 gr | 80% | 24,729 psi | 66% | 1781 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,660 psi | 79% | 2543 fps | 96.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,834 psi | 76% | 2526 fps | 96% |
| Vihtavuori N135 | <<locked>> | 80% | 31,444 psi | 83% | 2667 fps | 98.6% |
| Vihtavuori N135 | <<locked>> | 80% | 30,472 psi | 81% | 2644 fps | 98.3% |
| Vihtavuori N140 | <<locked>> | 80% | 31,720 psi | 84% | 2644 fps | 96.4% |
| Vihtavuori N540 | <<locked>> | 80% | 31,328 psi | 83% | 2638 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 30,443 psi | 81% | 2618 fps | 95.2% |
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 44 powders for 5.6 x 70 R loaded with the .224 | 65gr | Peregrine Glider GRM. Somchem S365 delivers the highest muzzle velocity at 2,772 fps; across all powders the maximum-charge window runs from 1,946 fps to 2,772 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 44 of the 44 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (260 MPa), the top charges use 84–90 %, leaving at least 10 % headroom. The 65.0 gr projectile in 0.224" calls for a 1:7.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, 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 | 65gr | Peregrine Glider GRM they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder- TS 15.5, Alliant Reloder- TS 15.5, Bofors RP3 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.