Load Specifications
Load data in caliber 10.75 x 68 with .422 | 223gr | Reichenberg HDB Universal bullet and 29 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, SNPE Vectan SP 3 and Alliant Reloder-10x.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 82% | 40,509 psi | 85% | 2605 fps | 99% |
| Accurate 2015 | <<locked>> | 98% | 42,134 psi | 88% | 2713 fps | 98.7% |
| Accurate 2495ᴾ | <<locked>> | 100% | 32,837 psi | 69% | 2605 fps | 97.1% |
| Accurate LT-30 | <<locked>> | 88% | 41,655 psi | 87% | 2612 fps | 97.1% |
| ADI AR 2207 | <<locked>> | 88% | 42,859 psi | 90% | 2720 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 41,379 psi | 86% | 2730 fps | 97% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 41,756 psi | 87% | 2789 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 94% | 43,120 psi | 90% | 2756 fps | 99.5% |
| Alliant Reloder-7 | <<locked>> | 86% | 42,177 psi | 88% | 2677 fps | 99.6% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 42,670 psi | 89% | 2641 fps | 97.8% |
| Hodgdon H322 | <<locked>> | 94% | 42,656 psi | 89% | 2753 fps | 97.3% |
| Hodgdon H4198 | <<locked>> | 84% | 40,625 psi | 85% | 2608 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,719 psi | 64% | 1742 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 39,595 psi | 83% | 2756 fps | 97.5% |
| IMR 4198 | <<locked>> | 92% | 42,801 psi | 89% | 2703 fps | 99.8% |
| Lovex S053 | <<locked>> | 82% | 42,264 psi | 88% | 2615 fps | 100% |
| Norma 200 | <<locked>> | 90% | 42,931 psi | 90% | 2736 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,371 psi | 63% | 1781 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 42,859 psi | 90% | 2680 fps | 100% |
| Rottweil R 901 | <<locked>> | 98% | 41,365 psi | 86% | 2700 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 41,336 psi | 86% | 2461 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 41,597 psi | 87% | 2726 fps | 95.9% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 41,481 psi | 87% | 2707 fps | 97.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 41,626 psi | 87% | 2638 fps | 95.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 42,569 psi | 89% | 2680 fps | 97.2% |
| Vihtavuori N120 | <<locked>> | 88% | 43,033 psi | 90% | 2677 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 41,684 psi | 87% | 2664 fps | 99.1% |
| Vihtavuori N133 | <<locked>> | 98% | 40,770 psi | 85% | 2648 fps | 98.3% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 35,346 psi | 74% | 2631 fps | 97.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 37,942 psi | 79% | 2556 fps | 98.6% |
| Accurate 2015 | <<locked>> | 88% | 30,356 psi | 63% | 2470 fps | 95.5% |
| Accurate 2495 | <<locked>> | 96% | 28,340 psi | 59% | 2500 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 82% | 34,563 psi | 72% | 2470 fps | 95% |
| ADI AR 2207 | <<locked>> | 80% | 33,069 psi | 69% | 2539 fps | 99.8% |
| ADI AR 2219 | 67 gr | 86% | 36,085 psi | 75% | 2621 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 84% | 24,874 psi | 52% | 2379 fps | 95.3% |
| Alliant Reloder-10x | 56.9 gr | 80% | 27,267 psi | 57% | 2411 fps | 95.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 34,693 psi | 72% | 2533 fps | 98.4% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 34,911 psi | 73% | 2493 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 90% | 37,391 psi | 78% | 2651 fps | 95.8% |
| Hodgdon H4198 | <<locked>> | 82% | 38,218 psi | 80% | 2562 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,365 psi | 47% | 1562 fps | 100% |
| IMR 3031 | <<locked>> | 94% | 32,619 psi | 68% | 2595 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 29,892 psi | 62% | 2428 fps | 97.2% |
| Lovex S053 | <<locked>> | 80% | 39,726 psi | 83% | 2572 fps | 100% |
| Norma 200 | <<locked>> | 80% | 30,806 psi | 64% | 2490 fps | 97.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,075 psi | 46% | 1598 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 40,089 psi | 84% | 2631 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 96% | 38,928 psi | 81% | 2654 fps | 95% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 36,956 psi | 77% | 2392 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 38,798 psi | 81% | 2674 fps | 95.1% |
| SNPE Vectan SP 3 | 59.9 gr | 84% | 32,155 psi | 67% | 2510 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 39,073 psi | 82% | 2592 fps | 95% |
| Somchem S335 | <<locked>> | 94% | 35,230 psi | 74% | 2543 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 33,315 psi | 70% | 2507 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 28,427 psi | 59% | 2382 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 90% | 31,763 psi | 66% | 2464 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 94% | 29,327 psi | 61% | 2487 fps | 95.1% |
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 57 powders for 10.75 x 68 loaded with the .422 | 223gr | Reichenberg HDB Universal. Alliant AR-Comp delivers the highest muzzle velocity at 2,789 fps; across all powders the maximum-charge window runs from 1,742 fps to 2,789 fps. Accurate 2495 gives the best case fill at 100 %, and 57 of the 57 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 63–90 %, leaving at least 10 % headroom. Accurate 2495, Accurate 4064, Alliant AR-Comp 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. ADI AR 2219, SNPE Vectan SP 3, Alliant Reloder-10x rank at the top here: for 10.75 x 68 with the .422 | 223gr | Reichenberg HDB Universal they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 4064, ADI Benchmark 8208, Alliant Power Pro 1200-R 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.