Load Specifications
Load data in caliber 10.3 x 68 Mag. with .413 | 200gr | Impala LWHV LS bullet and 44 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 10 and Hodgdon H335.
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>> | 90% | 54,737 psi | 86% | 2966 fps | 99.9% |
| Accurate 2015ᴾ | <<locked>> | 100% | 47,442 psi | 74% | 2936 fps | 98.8% |
| Accurate 2460ᴾ | <<locked>> | 100% | 52,881 psi | 83% | 3031 fps | 97.1% |
| Accurate 2495ᴾ | <<locked>> | 100% | 36,666 psi | 57% | 2805 fps | 97.1% |
| Accurate 5744 | <<locked>> | 82% | 56,405 psi | 88% | 3041 fps | 100% |
| Accurate LT-30 | <<locked>> | 96% | 54,607 psi | 86% | 2959 fps | 98.6% |
| Accurate LT-32 | <<locked>> | 96% | 55,143 psi | 86% | 2963 fps | 97% |
| ADI APS 450 | <<locked>> | 82% | 56,492 psi | 89% | 2300 fps | 100% |
| ADI AR 2205 | <<locked>> | 84% | 56,376 psi | 88% | 2877 fps | 100% |
| ADI AR 2207 | <<locked>> | 96% | 56,956 psi | 89% | 3071 fps | 100% |
| ADI AR 2219 | <<locked>> | 98% | 55,724 psi | 87% | 3114 fps | 98.7% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 43,598 psi | 68% | 2959 fps | 99.8% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 54,201 psi | 85% | 3074 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 94% | 56,231 psi | 88% | 3035 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 98% | 56,521 psi | 89% | 2995 fps | 99.1% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 49,066 psi | 77% | 3005 fps | 97.7% |
| Hodgdon H335 | <<locked>> | 98% | 55,332 psi | 87% | 3104 fps | 97.8% |
| Hodgdon H4198 | <<locked>> | 96% | 56,057 psi | 88% | 3002 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,865 psi | 50% | 1834 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 55,332 psi | 87% | 3045 fps | 100% |
| IMR 4227 | <<locked>> | 90% | 56,898 psi | 89% | 2995 fps | 100% |
| Lovex D060 | <<locked>> | 84% | 56,405 psi | 88% | 3041 fps | 100% |
| Lovex D063 | <<locked>> | 82% | 54,520 psi | 85% | 2956 fps | 100% |
| Lovex D073.4 | <<locked>> | 94% | 54,143 psi | 85% | 3061 fps | 96.6% |
| Lovex D073.5ᴾ | <<locked>> | 100% | 53,243 psi | 83% | 3028 fps | 95.8% |
| Lovex S053 | <<locked>> | 90% | 55,434 psi | 87% | 2946 fps | 100% |
| Norma 200 | <<locked>> | 96% | 55,230 psi | 87% | 3061 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,821 psi | 50% | 1880 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 90% | 56,739 psi | 89% | 3031 fps | 100% |
| ReloadSwiss RS 40ᴾ | <<locked>> | 100% | 53,476 psi | 84% | 3048 fps | 96.4% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 47,500 psi | 74% | 2933 fps | 96.1% |
| Shooters World AR Plus | <<locked>> | 94% | 54,143 psi | 85% | 3061 fps | 96.6% |
| Shooters World Buffalo Rifle | <<locked>> | 84% | 56,405 psi | 88% | 3041 fps | 100% |
| Shooters World SOCOM | <<locked>> | 82% | 54,520 psi | 85% | 2956 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 94% | 55,709 psi | 87% | 2785 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 98% | 56,202 psi | 88% | 3114 fps | 97.9% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 54,882 psi | 86% | 3068 fps | 99.2% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 46,369 psi | 73% | 2848 fps | 95.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 44,846 psi | 70% | 2851 fps | 96.6% |
| Vihtavuori N110 | <<locked>> | 86% | 57,740 psi | 90% | 2890 fps | 100% |
| Vihtavuori N120 | <<locked>> | 96% | 56,869 psi | 89% | 3015 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 51,996 psi | 81% | 2966 fps | 99.7% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 45,165 psi | 71% | 2858 fps | 98.3% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 37,811 psi | 59% | 2805 fps | 97.1% |
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% | 40,030 psi | 63% | 2717 fps | 98.3% |
| Accurate 2015 | <<locked>> | 88% | 33,431 psi | 52% | 2651 fps | 95.5% |
| Accurate 2460 | <<locked>> | 94% | 43,685 psi | 68% | 2874 fps | 95.1% |
| Accurate 2495 | <<locked>> | 94% | 30,501 psi | 48% | 2657 fps | 95% |
| Accurate 5744 | <<locked>> | 80% | 53,229 psi | 83% | 2992 fps | 100% |
| Accurate LT-30 | <<locked>> | 84% | 38,682 psi | 61% | 2671 fps | 95.3% |
| Accurate LT-32 | <<locked>> | 90% | 46,499 psi | 73% | 2818 fps | 95.1% |
| ADI APS 450 | <<locked>> | 80% | 54,476 psi | 85% | 2270 fps | 100% |
| ADI AR 2205 | <<locked>> | 80% | 50,285 psi | 79% | 2792 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 35,781 psi | 56% | 2710 fps | 99.8% |
| ADI AR 2219 | 67.3 gr | 88% | 40,654 psi | 64% | 2841 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 84% | 27,615 psi | 43% | 2552 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 30,327 psi | 48% | 2589 fps | 95.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 37,478 psi | 59% | 2700 fps | 98.2% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 36,738 psi | 58% | 2648 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 92% | 38,725 psi | 61% | 2799 fps | 95% |
| Hodgdon H335 | 72.7 gr | 90% | 42,525 psi | 67% | 2877 fps | 95% |
| Hodgdon H4198 | <<locked>> | 84% | 39,987 psi | 63% | 2713 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,830 psi | 37% | 1647 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 32,039 psi | 50% | 2585 fps | 97.1% |
| IMR 4227 | <<locked>> | 80% | 42,612 psi | 67% | 2766 fps | 99.9% |
| Lovex D060 | <<locked>> | 80% | 50,459 psi | 79% | 2943 fps | 99.9% |
| Lovex D063 | <<locked>> | 80% | 51,314 psi | 80% | 2907 fps | 100% |
| Lovex D073.4 | <<locked>> | 90% | 47,123 psi | 74% | 2946 fps | 95.1% |
| Lovex D073.5 | <<locked>> | 98% | 49,690 psi | 78% | 2972 fps | 95% |
| Lovex S053 | <<locked>> | 80% | 42,032 psi | 66% | 2736 fps | 100% |
| Norma 200 | <<locked>> | 80% | 34,548 psi | 54% | 2677 fps | 97.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,583 psi | 37% | 1683 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 42,250 psi | 66% | 2795 fps | 99.8% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 47,253 psi | 74% | 2940 fps | 95% |
| Rottweil R 901 | <<locked>> | 98% | 44,976 psi | 70% | 2887 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 90% | 47,123 psi | 74% | 2946 fps | 95.1% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 50,459 psi | 79% | 2943 fps | 99.9% |
| Shooters World SOCOM | <<locked>> | 80% | 51,314 psi | 80% | 2907 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 39,247 psi | 62% | 2543 fps | 100% |
| SNPE Vectan SP 10 | 71.2 gr | 90% | 43,627 psi | 68% | 2897 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 36,477 psi | 57% | 2723 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 43,787 psi | 69% | 2802 fps | 95.2% |
| Somchem S335 | <<locked>> | 96% | 39,958 psi | 63% | 2756 fps | 95.3% |
| Vihtavuori N110 | <<locked>> | 80% | 48,936 psi | 77% | 2772 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 35,839 psi | 56% | 2674 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 31,082 psi | 49% | 2546 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 90% | 34,011 psi | 53% | 2625 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 96% | 33,736 psi | 53% | 2707 fps | 95.7% |
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 10.3 x 68 Mag. loaded with the .413 | 200gr | Impala LWHV LS. ADI AR 2219 delivers the highest muzzle velocity at 3,114 fps; across all powders the maximum-charge window runs from 1,834 fps to 3,114 fps. Accurate 2015 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 (440 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. Accurate 2015, Accurate 2460, Accurate 2495 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 10, Hodgdon H335 rank at the top here: for 10.3 x 68 Mag. with the .413 | 200gr | Impala LWHV LS 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.