Load Specifications
Load data in caliber .30-40 Krag with .308 | 147gr | Brenneke TUG Nature Plus bullet and 46 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 3031, Winchester 748 and Accurate 2520.
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>> | 90% | 42,409 psi | 90% | 2579 fps | 99.9% |
| Accurate 2460 | <<locked>> | 86% | 40,683 psi | 86% | 2572 fps | 98.1% |
| Accurate 2495 | <<locked>> | 96% | 39,740 psi | 84% | 2602 fps | 99.9% |
| Accurate 2520 | <<locked>> | 90% | 40,886 psi | 87% | 2615 fps | 97.8% |
| Accurate 4064ᴾ | <<locked>> | 100% | 42,612 psi | 90% | 2674 fps | 99.1% |
| Accurate LT-30 | <<locked>> | 82% | 42,569 psi | 90% | 2503 fps | 99.3% |
| ADI AR 2219 | <<locked>> | 82% | 40,292 psi | 85% | 2585 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 90% | 41,655 psi | 88% | 2585 fps | 96% |
| Alliant AR-Comp | <<locked>> | 92% | 42,003 psi | 89% | 2654 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 40,480 psi | 86% | 2556 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 40,625 psi | 86% | 2487 fps | 99.2% |
| Bofors RP3ᴾ | <<locked>> | 100% | 42,395 psi | 90% | 2671 fps | 96.1% |
| Hodgdon Benchmark | <<locked>> | 88% | 41,771 psi | 89% | 2543 fps | 96.7% |
| Hodgdon BL-C2 | <<locked>> | 92% | 41,481 psi | 88% | 2644 fps | 96.8% |
| Hodgdon H322 | <<locked>> | 86% | 41,858 psi | 89% | 2615 fps | 99.2% |
| Hodgdon H335 | <<locked>> | 84% | 39,668 psi | 84% | 2575 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,866 psi | 70% | 1650 fps | 100% |
| IMR 3031 | <<locked>> | 94% | 42,569 psi | 90% | 2690 fps | 99.8% |
| IMR 4198 | <<locked>> | 84% | 41,945 psi | 89% | 2536 fps | 100% |
| IMR 8208 XBR | <<locked>> | 90% | 41,655 psi | 88% | 2585 fps | 96% |
| Lovex D073.5 | <<locked>> | 86% | 40,321 psi | 86% | 2566 fps | 96.8% |
| Lovex D073.6 | <<locked>> | 94% | 41,495 psi | 88% | 2638 fps | 97.9% |
| Lovex S062 | <<locked>> | 96% | 40,828 psi | 87% | 2592 fps | 96% |
| Norma 201 | <<locked>> | 92% | 40,480 psi | 86% | 2569 fps | 95.8% |
| Norma 202 | <<locked>> | 92% | 40,422 psi | 86% | 2589 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,851 psi | 70% | 1690 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 41,597 psi | 88% | 2589 fps | 97.5% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 41,655 psi | 88% | 2700 fps | 97% |
| Rottweil R 901 | <<locked>> | 90% | 41,568 psi | 88% | 2579 fps | 98.2% |
| Rottweil R 902 | <<locked>> | 94% | 40,770 psi | 86% | 2566 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 94% | 41,495 psi | 88% | 2638 fps | 97.9% |
| Shooters World Precision | <<locked>> | 96% | 40,828 psi | 87% | 2592 fps | 96% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 40,785 psi | 87% | 2589 fps | 98.2% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 41,379 psi | 88% | 2566 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 41,002 psi | 87% | 2510 fps | 98.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 42,221 psi | 90% | 2549 fps | 99.2% |
| Somchem S321 | <<locked>> | 88% | 41,901 psi | 89% | 2615 fps | 96.5% |
| Somchem S335 | <<locked>> | 92% | 42,148 psi | 89% | 2552 fps | 99.1% |
| Vihtavuori N130 | <<locked>> | 86% | 41,075 psi | 87% | 2513 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 40,625 psi | 86% | 2516 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 96% | 41,481 psi | 88% | 2615 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 94% | 40,770 psi | 86% | 2572 fps | 98.6% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 39,639 psi | 84% | 2562 fps | 96.1% |
| Vihtavuori N530 | <<locked>> | 90% | 41,901 psi | 89% | 2585 fps | 96.2% |
| Vihtavuori N540 | <<locked>> | 96% | 42,076 psi | 89% | 2612 fps | 98.4% |
| Winchester 748 | <<locked>> | 90% | 40,074 psi | 85% | 2618 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 2015 | <<locked>> | 80% | 30,792 psi | 65% | 2343 fps | 98.1% |
| Accurate 2460 | <<locked>> | 80% | 32,953 psi | 70% | 2411 fps | 95.9% |
| Accurate 2495 | <<locked>> | 80% | 22,829 psi | 48% | 2195 fps | 95.3% |
| Accurate 2520 | 39.1 gr | 84% | 32,967 psi | 70% | 2451 fps | 95.4% |
| Accurate 4064 | <<locked>> | 88% | 28,558 psi | 61% | 2372 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 39,827 psi | 84% | 2454 fps | 98.9% |
| ADI AR 2219 | <<locked>> | 80% | 37,608 psi | 80% | 2530 fps | 98.4% |
| ADI Benchmark 8208 | <<locked>> | 88% | 39,015 psi | 83% | 2536 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 80% | 28,340 psi | 60% | 2362 fps | 99.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 35,549 psi | 75% | 2457 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 38,159 psi | 81% | 2441 fps | 98.9% |
| Bofors RP3 | <<locked>> | 98% | 39,523 psi | 84% | 2615 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 84% | 37,014 psi | 79% | 2448 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 88% | 36,303 psi | 77% | 2539 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 34,345 psi | 73% | 2457 fps | 97.6% |
| Hodgdon H335 | <<locked>> | 80% | 34,476 psi | 73% | 2464 fps | 96.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,105 psi | 51% | 1470 fps | 100% |
| IMR 3031 | 34.1 gr | 80% | 26,919 psi | 57% | 2323 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 37,391 psi | 79% | 2454 fps | 100% |
| IMR 8208 XBR | <<locked>> | 88% | 39,015 psi | 83% | 2536 fps | 95.2% |
| Lovex D073.5 | <<locked>> | 82% | 35,027 psi | 74% | 2457 fps | 95.1% |
| Lovex D073.6 | <<locked>> | 88% | 33,750 psi | 72% | 2480 fps | 95.7% |
| Lovex S062 | <<locked>> | 94% | 38,508 psi | 82% | 2546 fps | 95.3% |
| Norma 201 | <<locked>> | 90% | 38,189 psi | 81% | 2520 fps | 95.1% |
| Norma 202 | <<locked>> | 84% | 31,328 psi | 66% | 2392 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,960 psi | 51% | 1503 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 34,084 psi | 72% | 2428 fps | 95.3% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 39,059 psi | 83% | 2641 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 82% | 32,706 psi | 69% | 2388 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 92% | 38,189 psi | 81% | 2513 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 88% | 33,750 psi | 72% | 2480 fps | 95.7% |
| Shooters World Precision | <<locked>> | 94% | 38,508 psi | 82% | 2546 fps | 95.3% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 37,884 psi | 80% | 2530 fps | 97.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 36,303 psi | 77% | 2467 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 31,691 psi | 67% | 2316 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 27,311 psi | 58% | 2224 fps | 95% |
| Somchem S321 | <<locked>> | 86% | 38,957 psi | 83% | 2559 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 28,935 psi | 61% | 2267 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 34,055 psi | 72% | 2375 fps | 99.4% |
| Vihtavuori N133 | <<locked>> | 80% | 29,602 psi | 63% | 2283 fps | 97.6% |
| Vihtavuori N135 | <<locked>> | 80% | 24,584 psi | 52% | 2228 fps | 95.9% |
| Vihtavuori N140 | <<locked>> | 84% | 29,660 psi | 63% | 2329 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 98% | 37,028 psi | 79% | 2510 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 88% | 39,146 psi | 83% | 2533 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 88% | 32,343 psi | 69% | 2411 fps | 95.7% |
| Winchester 748 | 40.7 gr | 88% | 37,565 psi | 80% | 2562 fps | 95.8% |
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 76 powders for .30-40 Krag loaded with the .308 | 147gr | Brenneke TUG Nature Plus. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,700 fps; across all powders the maximum-charge window runs from 1,650 fps to 2,700 fps. Accurate 4064 gives the best case fill at 100 %, and 76 of the 76 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 147.0 gr projectile in 0.308" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, Alliant Reloder-17, Bofors RP3 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, Winchester 748, Accurate 2520 rank at the top here: for .30-40 Krag with the .308 | 147gr | Brenneke TUG Nature Plus they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2206H, 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.