Load Specifications
Load data in caliber .30-40 Krag with .308 | 155gr | Berger BT Target bullet and 49 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Hodgdon BL-C2 and Lovex D073.6.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 41,698 psi | 88% | 2503 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 42,467 psi | 90% | 2546 fps | 99% |
| Accurate 2495 | <<locked>> | 92% | 40,393 psi | 86% | 2543 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 40,292 psi | 85% | 2543 fps | 98.3% |
| Accurate 4064 | <<locked>> | 94% | 40,074 psi | 85% | 2562 fps | 99.1% |
| ADI Benchmark 8208 | <<locked>> | 86% | 40,596 psi | 86% | 2510 fps | 96.6% |
| Alliant AR-Comp | <<locked>> | 88% | 41,176 psi | 87% | 2572 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 40,799 psi | 87% | 2592 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 40,030 psi | 85% | 2552 fps | 96.2% |
| Alliant Reloder-10x | <<locked>> | 82% | 42,119 psi | 89% | 2520 fps | 100% |
| Bofors RP3 | <<locked>> | 96% | 42,221 psi | 90% | 2608 fps | 96.9% |
| Hodgdon Benchmark | <<locked>> | 84% | 40,582 psi | 86% | 2467 fps | 97.2% |
| Hodgdon BL-C2 | <<locked>> | 88% | 40,988 psi | 87% | 2575 fps | 97.5% |
| Hodgdon H322 | <<locked>> | 82% | 40,785 psi | 87% | 2533 fps | 99.5% |
| Hodgdon H335 | <<locked>> | 82% | 41,350 psi | 88% | 2546 fps | 99% |
| Hodgdon H4895 | <<locked>> | 88% | 40,973 psi | 87% | 2552 fps | 96% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 41,742 psi | 89% | 2612 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,504 psi | 71% | 1624 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 42,409 psi | 90% | 2559 fps | 96.3% |
| IMR 3031 | <<locked>> | 90% | 42,003 psi | 89% | 2615 fps | 99.9% |
| IMR 4895 | <<locked>> | 92% | 42,032 psi | 89% | 2602 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 86% | 40,596 psi | 86% | 2510 fps | 96.6% |
| Lovex D073.5 | <<locked>> | 84% | 42,395 psi | 90% | 2546 fps | 98% |
| Lovex D073.6 | <<locked>> | 90% | 41,205 psi | 87% | 2572 fps | 98.5% |
| Lovex S062 | <<locked>> | 92% | 40,335 psi | 86% | 2523 fps | 96.7% |
| Norma 201 | <<locked>> | 90% | 42,641 psi | 90% | 2552 fps | 97.3% |
| Norma 202 | <<locked>> | 90% | 42,525 psi | 90% | 2569 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,634 psi | 71% | 1660 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 40,263 psi | 85% | 2503 fps | 97.9% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 40,422 psi | 86% | 2631 fps | 97.8% |
| Rottweil R 901 | <<locked>> | 86% | 41,466 psi | 88% | 2510 fps | 98.8% |
| Rottweil R 902 | <<locked>> | 90% | 40,321 psi | 86% | 2500 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 98% | 41,843 psi | 89% | 2592 fps | 96.5% |
| Shooters World Match Rifle | <<locked>> | 90% | 41,205 psi | 87% | 2572 fps | 98.5% |
| Shooters World Precision | <<locked>> | 92% | 40,335 psi | 86% | 2523 fps | 96.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 42,496 psi | 90% | 2480 fps | 99% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 41,481 psi | 88% | 2477 fps | 99.5% |
| Somchem S321 | <<locked>> | 84% | 40,683 psi | 86% | 2536 fps | 97% |
| Somchem S335 | <<locked>> | 88% | 41,510 psi | 88% | 2484 fps | 99.4% |
| Somchem S355 | <<locked>> | 96% | 40,553 psi | 86% | 2549 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 84% | 42,409 psi | 90% | 2474 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 42,235 psi | 90% | 2484 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 41,104 psi | 87% | 2543 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 40,132 psi | 85% | 2503 fps | 99% |
| Vihtavuori N150 | <<locked>> | 98% | 41,466 psi | 88% | 2543 fps | 97.5% |
| Vihtavuori N530 | <<locked>> | 86% | 40,727 psi | 86% | 2510 fps | 96.8% |
| Vihtavuori N540 | <<locked>> | 92% | 41,307 psi | 88% | 2539 fps | 98.9% |
| Winchester 748 | <<locked>> | 88% | 41,684 psi | 88% | 2592 fps | 97.9% |
| Winchester StaBALL Match | <<locked>> | 90% | 41,046 psi | 87% | 2562 fps | 96% |
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 2015 | <<locked>> | 80% | 34,592 psi | 73% | 2365 fps | 99.4% |
| Accurate 2460 | <<locked>> | 80% | 37,173 psi | 79% | 2444 fps | 98% |
| Accurate 2495 | <<locked>> | 80% | 27,079 psi | 57% | 2254 fps | 98% |
| Accurate 2520 | <<locked>> | 80% | 32,706 psi | 69% | 2385 fps | 96.3% |
| Accurate 4064 | <<locked>> | 82% | 27,369 psi | 58% | 2274 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 82% | 35,824 psi | 76% | 2411 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 80% | 31,749 psi | 67% | 2385 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 38,203 psi | 81% | 2536 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 37,608 psi | 80% | 2503 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 39,494 psi | 84% | 2470 fps | 100% |
| Bofors RP3 | <<locked>> | 92% | 36,724 psi | 78% | 2497 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 36,158 psi | 77% | 2375 fps | 96% |
| Hodgdon BL-C2 | 39.8 gr | 82% | 33,388 psi | 71% | 2415 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 38,218 psi | 81% | 2484 fps | 99.1% |
| Hodgdon H335 | <<locked>> | 80% | 38,566 psi | 82% | 2493 fps | 98.5% |
| Hodgdon H4895 | <<locked>> | 86% | 38,479 psi | 82% | 2500 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 36,709 psi | 78% | 2507 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,961 psi | 53% | 1453 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 39,813 psi | 84% | 2510 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 30,458 psi | 65% | 2365 fps | 98.1% |
| IMR 4895 | <<locked>> | 90% | 39,465 psi | 84% | 2549 fps | 95% |
| IMR 8208 XBR | <<locked>> | 82% | 35,824 psi | 76% | 2411 fps | 95.2% |
| Lovex D073.5 | <<locked>> | 80% | 37,101 psi | 79% | 2444 fps | 96.7% |
| Lovex D073.6 | 38.5 gr | 82% | 31,546 psi | 67% | 2369 fps | 95.8% |
| Lovex S062 | <<locked>> | 88% | 35,839 psi | 76% | 2431 fps | 95.4% |
| Norma 201 | <<locked>> | 84% | 35,346 psi | 75% | 2402 fps | 95.1% |
| Norma 202 | <<locked>> | 80% | 30,893 psi | 66% | 2323 fps | 96.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,918 psi | 53% | 1486 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 37,811 psi | 80% | 2454 fps | 97.3% |
| ReloadSwiss RS 60 | 43 gr | 90% | 33,518 psi | 71% | 2461 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 34,650 psi | 74% | 2369 fps | 97.2% |
| Rottweil R 902 | <<locked>> | 86% | 35,621 psi | 76% | 2402 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 96% | 39,160 psi | 83% | 2539 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 31,546 psi | 67% | 2369 fps | 95.8% |
| Shooters World Precision | <<locked>> | 88% | 35,839 psi | 76% | 2431 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,040 psi | 70% | 2293 fps | 96.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,760 psi | 57% | 2159 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 35,679 psi | 76% | 2431 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 32,430 psi | 69% | 2297 fps | 97.6% |
| Somchem S355 | <<locked>> | 94% | 38,072 psi | 81% | 2500 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 37,594 psi | 80% | 2388 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 32,895 psi | 70% | 2303 fps | 99.1% |
| Vihtavuori N135 | <<locked>> | 80% | 27,920 psi | 59% | 2264 fps | 98.2% |
| Vihtavuori N140 | <<locked>> | 80% | 29,182 psi | 62% | 2264 fps | 96% |
| Vihtavuori N150 | <<locked>> | 92% | 34,214 psi | 73% | 2395 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 82% | 35,607 psi | 76% | 2405 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 82% | 29,834 psi | 63% | 2293 fps | 95.7% |
| Winchester 748 | <<locked>> | 82% | 34,330 psi | 73% | 2438 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 88% | 38,319 psi | 81% | 2507 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 79 powders for .30-40 Krag loaded with the .308 | 155gr | Berger BT Target. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,657 fps; across all powders the maximum-charge window runs from 1,624 fps to 2,657 fps. Accurate 4350 gives the best case fill at 100 %, and 79 of the 79 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 70–90 %, leaving at least 10 % headroom. The 155.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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 60, Hodgdon BL-C2, Lovex D073.6 rank at the top here: for .30-40 Krag with the .308 | 155gr | Berger BT Target they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 4350, ADI AR 2208, Alliant Power Pro 2000-MR 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.