Load Specifications
Load data in caliber .30-40 Krag with .311 | 123gr | Sellier & Bellot SP bullet and 40 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 3031, Alliant AR-Comp 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.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 82% | 42,250 psi | 90% | 2785 fps | 99.8% |
| Accurate 2015 | <<locked>> | 96% | 41,524 psi | 88% | 2861 fps | 99.4% |
| Accurate 2460 | <<locked>> | 94% | 42,612 psi | 90% | 2900 fps | 97.4% |
| Accurate 2495ᴾ | <<locked>> | 100% | 33,112 psi | 70% | 2759 fps | 98.2% |
| Accurate 2520 | <<locked>> | 96% | 40,495 psi | 86% | 2894 fps | 96.4% |
| Accurate LT-30 | <<locked>> | 86% | 41,017 psi | 87% | 2756 fps | 98.2% |
| Accurate LT-32 | <<locked>> | 86% | 41,495 psi | 88% | 2766 fps | 96.5% |
| ADI AR 2207 | <<locked>> | 86% | 42,569 psi | 90% | 2854 fps | 100% |
| ADI AR 2219 | <<locked>> | 88% | 41,147 psi | 87% | 2890 fps | 98.2% |
| Alliant AR-Comp | <<locked>> | 98% | 41,974 psi | 89% | 2953 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 92% | 42,409 psi | 90% | 2897 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 84% | 40,785 psi | 87% | 2802 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 42,221 psi | 90% | 2795 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 90% | 39,595 psi | 84% | 2858 fps | 97.8% |
| Hodgdon H335 | <<locked>> | 90% | 40,321 psi | 86% | 2871 fps | 97% |
| Hodgdon H4198 | <<locked>> | 82% | 40,089 psi | 85% | 2756 fps | 97.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,240 psi | 64% | 1824 fps | 100% |
| IMR 3031 | <<locked>> | 98% | 39,436 psi | 84% | 2920 fps | 98.6% |
| IMR 4198 | <<locked>> | 88% | 40,379 psi | 86% | 2805 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 40,509 psi | 86% | 2864 fps | 96.1% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 40,959 psi | 87% | 2913 fps | 96.6% |
| Norma 200 | <<locked>> | 88% | 40,872 psi | 87% | 2854 fps | 100% |
| Norma 202 | <<locked>> | 98% | 40,059 psi | 85% | 2867 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,225 psi | 62% | 1857 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 42,264 psi | 90% | 2884 fps | 96.4% |
| Rottweil R 901 | <<locked>> | 98% | 41,858 psi | 89% | 2884 fps | 97.3% |
| Shooters World AR Plus | <<locked>> | 86% | 40,509 psi | 86% | 2864 fps | 96.1% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 40,959 psi | 87% | 2913 fps | 96.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 40,466 psi | 86% | 2566 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 41,336 psi | 88% | 2887 fps | 97.2% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 41,582 psi | 88% | 2867 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 41,133 psi | 87% | 2795 fps | 97.1% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 37,275 psi | 79% | 2730 fps | 97.2% |
| Somchem S335 | <<locked>> | 98% | 41,800 psi | 89% | 2835 fps | 98.2% |
| Vihtavuori N120 | <<locked>> | 84% | 40,059 psi | 85% | 2762 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 40,857 psi | 87% | 2802 fps | 99.7% |
| Vihtavuori N133 | <<locked>> | 96% | 40,872 psi | 87% | 2808 fps | 99.2% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 37,753 psi | 80% | 2838 fps | 99% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 41,147 psi | 87% | 2861 fps | 97.6% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 39,262 psi | 83% | 2835 fps | 96.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 39,204 psi | 83% | 2726 fps | 99.5% |
| Accurate 2015 | <<locked>> | 84% | 26,281 psi | 56% | 2497 fps | 95.1% |
| Accurate 2460 | <<locked>> | 90% | 36,318 psi | 77% | 2769 fps | 95.7% |
| Accurate 2495 | <<locked>> | 94% | 25,628 psi | 54% | 2556 fps | 95.3% |
| Accurate 2520 | <<locked>> | 94% | 37,043 psi | 79% | 2818 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 33,504 psi | 71% | 2592 fps | 96.2% |
| Accurate LT-32 | <<locked>> | 84% | 38,841 psi | 82% | 2710 fps | 95.7% |
| ADI AR 2207 | <<locked>> | 80% | 34,301 psi | 73% | 2690 fps | 100% |
| ADI AR 2219 | <<locked>> | 82% | 32,590 psi | 69% | 2694 fps | 95.6% |
| Alliant AR-Comp | 38.1 gr | 82% | 23,076 psi | 49% | 2461 fps | 96% |
| Alliant Reloder-10x | <<locked>> | 80% | 27,398 psi | 58% | 2543 fps | 96.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 35,201 psi | 75% | 2684 fps | 99.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 31,589 psi | 67% | 2562 fps | 95.9% |
| Hodgdon H322 | <<locked>> | 84% | 31,821 psi | 68% | 2674 fps | 95.3% |
| Hodgdon H335 | 44.1 gr | 86% | 34,650 psi | 74% | 2743 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 37,463 psi | 79% | 2697 fps | 96.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,277 psi | 45% | 1617 fps | 100% |
| IMR 3031 | 41.7 gr | 90% | 29,399 psi | 62% | 2667 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 30,763 psi | 65% | 2585 fps | 98.7% |
| Lovex D073.4 | <<locked>> | 84% | 37,362 psi | 79% | 2795 fps | 95.2% |
| Lovex D073.6 | <<locked>> | 98% | 37,739 psi | 80% | 2848 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 29,994 psi | 64% | 2612 fps | 98.5% |
| Norma 202 | <<locked>> | 94% | 34,824 psi | 74% | 2753 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 20,465 psi | 43% | 1650 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 39,204 psi | 83% | 2822 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 94% | 36,071 psi | 77% | 2759 fps | 95.7% |
| Shooters World AR Plus | <<locked>> | 84% | 37,362 psi | 79% | 2795 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 98% | 37,739 psi | 80% | 2848 fps | 95.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 38,029 psi | 81% | 2526 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 35,578 psi | 75% | 2759 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 29,037 psi | 62% | 2572 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 35,433 psi | 75% | 2674 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 32,416 psi | 69% | 2615 fps | 95.6% |
| Somchem S335 | <<locked>> | 90% | 31,328 psi | 66% | 2602 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 34,722 psi | 74% | 2661 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 26,716 psi | 57% | 2467 fps | 96.2% |
| Vihtavuori N133 | <<locked>> | 86% | 28,572 psi | 61% | 2526 fps | 95.9% |
| Vihtavuori N135 | <<locked>> | 90% | 25,860 psi | 55% | 2533 fps | 95% |
| Vihtavuori N140 | <<locked>> | 94% | 32,938 psi | 70% | 2680 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 98% | 36,390 psi | 77% | 2772 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 40 powders for .30-40 Krag loaded with the .311 | 123gr | Sellier & Bellot SP. Alliant AR-Comp delivers the highest muzzle velocity at 2,953 fps; across all powders the maximum-charge window runs from 1,824 fps to 2,953 fps. Accurate 2495 gives the best case fill at 100 %, and 40 of the 40 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. Accurate 2495, Hodgdon TrailBoss, Lovex D073.6 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. IMR 3031, Alliant AR-Comp, Hodgdon H335 rank at the top here: for .30-40 Krag with the .311 | 123gr | Sellier & Bellot SP 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.