Load Specifications
Load data in caliber .30-40 Krag with .308 | 159gr | IBEX TRD bullet and 44 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, IMR 3031 and Accurate 4064.
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>> | 84% | 41,858 psi | 89% | 2425 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 42,322 psi | 90% | 2461 fps | 98.8% |
| Accurate 2495 | <<locked>> | 90% | 41,220 psi | 87% | 2474 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 42,525 psi | 90% | 2507 fps | 98.6% |
| Accurate 4064 | <<locked>> | 92% | 40,814 psi | 87% | 2493 fps | 99.1% |
| ADI Benchmark 8208 | <<locked>> | 86% | 42,496 psi | 90% | 2470 fps | 96.9% |
| Alliant AR-Comp | <<locked>> | 86% | 40,683 psi | 86% | 2487 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 41,959 psi | 89% | 2513 fps | 96.5% |
| Bofors RP3 | <<locked>> | 94% | 41,727 psi | 89% | 2520 fps | 96.6% |
| Hodgdon Benchmark | <<locked>> | 84% | 42,554 psi | 90% | 2428 fps | 97.5% |
| Hodgdon BL-C2 | <<locked>> | 86% | 40,161 psi | 85% | 2484 fps | 97.1% |
| Hodgdon H322 | <<locked>> | 82% | 42,366 psi | 90% | 2487 fps | 99.6% |
| Hodgdon H4895 | <<locked>> | 86% | 40,669 psi | 86% | 2467 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 41,118 psi | 87% | 2523 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,156 psi | 72% | 1578 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 41,437 psi | 88% | 2467 fps | 95.8% |
| IMR 3031 | <<locked>> | 88% | 41,321 psi | 88% | 2523 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 86% | 42,496 psi | 90% | 2470 fps | 96.9% |
| Lovex D073.5 | <<locked>> | 82% | 42,032 psi | 89% | 2457 fps | 97.8% |
| Lovex D073.6 | <<locked>> | 88% | 40,843 psi | 87% | 2487 fps | 98.3% |
| Lovex S062 | <<locked>> | 92% | 42,612 psi | 90% | 2487 fps | 97.1% |
| Norma 201 | <<locked>> | 88% | 42,351 psi | 90% | 2464 fps | 97% |
| Norma 202 | <<locked>> | 88% | 41,800 psi | 89% | 2480 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,476 psi | 73% | 1617 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 42,366 psi | 90% | 2467 fps | 98.2% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 42,119 psi | 89% | 2589 fps | 98% |
| Rottweil R 901 | <<locked>> | 84% | 41,916 psi | 89% | 2434 fps | 98.7% |
| Rottweil R 902 | <<locked>> | 90% | 42,641 psi | 90% | 2461 fps | 97% |
| Rottweil R 903 | <<locked>> | 96% | 41,640 psi | 88% | 2510 fps | 96.2% |
| Shooters World Match Rifle | <<locked>> | 88% | 40,843 psi | 87% | 2487 fps | 98.3% |
| Shooters World Precision | <<locked>> | 92% | 42,612 psi | 90% | 2487 fps | 97.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 41,901 psi | 89% | 2395 fps | 98.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 40,524 psi | 86% | 2388 fps | 99.3% |
| Somchem S321 | <<locked>> | 82% | 40,277 psi | 85% | 2451 fps | 96.7% |
| Somchem S335 | <<locked>> | 86% | 41,220 psi | 87% | 2398 fps | 99.3% |
| Vihtavuori N130 | <<locked>> | 82% | 41,901 psi | 89% | 2388 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 41,495 psi | 88% | 2398 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 90% | 40,640 psi | 86% | 2457 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 42,061 psi | 89% | 2464 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 96% | 41,031 psi | 87% | 2461 fps | 97.2% |
| Vihtavuori N530 | <<locked>> | 86% | 42,496 psi | 90% | 2467 fps | 97% |
| Vihtavuori N540 | <<locked>> | 90% | 40,698 psi | 86% | 2454 fps | 98.6% |
| Winchester 748 | <<locked>> | 86% | 40,785 psi | 87% | 2500 fps | 97.5% |
| Winchester StaBALL Match | <<locked>> | 90% | 42,656 psi | 90% | 2516 fps | 96.3% |
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% | 37,159 psi | 79% | 2336 fps | 99.7% |
| Accurate 2460 | <<locked>> | 80% | 39,842 psi | 85% | 2415 fps | 98.4% |
| Accurate 2495 | <<locked>> | 80% | 30,734 psi | 65% | 2260 fps | 98.9% |
| Accurate 2520 | <<locked>> | 80% | 35,215 psi | 75% | 2362 fps | 96.9% |
| Accurate 4064 | 33.8 gr | 80% | 29,051 psi | 62% | 2231 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 82% | 37,884 psi | 80% | 2379 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 33,924 psi | 72% | 2356 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 37,318 psi | 79% | 2421 fps | 95.2% |
| Bofors RP3 | <<locked>> | 90% | 36,753 psi | 78% | 2421 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,985 psi | 81% | 2336 fps | 96.3% |
| Hodgdon BL-C2 | <<locked>> | 82% | 35,476 psi | 75% | 2388 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 39,972 psi | 85% | 2441 fps | 99.3% |
| Hodgdon H4895 | <<locked>> | 84% | 38,203 psi | 81% | 2418 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 38,725 psi | 82% | 2474 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,512 psi | 54% | 1411 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 39,233 psi | 83% | 2421 fps | 95.1% |
| IMR 3031 | 33.3 gr | 80% | 32,416 psi | 69% | 2336 fps | 98.5% |
| IMR 8208 XBR | <<locked>> | 82% | 37,884 psi | 80% | 2379 fps | 95.6% |
| Lovex D073.5 | <<locked>> | 80% | 39,537 psi | 84% | 2411 fps | 97.2% |
| Lovex D073.6 | <<locked>> | 80% | 32,010 psi | 68% | 2300 fps | 95.8% |
| Lovex S062 | <<locked>> | 86% | 35,969 psi | 76% | 2356 fps | 95.2% |
| Norma 201 | <<locked>> | 82% | 35,781 psi | 76% | 2329 fps | 95.1% |
| Norma 202 | <<locked>> | 80% | 33,011 psi | 70% | 2297 fps | 96.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,904 psi | 55% | 1450 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 39,842 psi | 85% | 2418 fps | 97.7% |
| ReloadSwiss RS 60 | 40.7 gr | 90% | 35,230 psi | 75% | 2428 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 37,695 psi | 80% | 2349 fps | 97.9% |
| Rottweil R 902 | <<locked>> | 84% | 36,013 psi | 76% | 2329 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 94% | 39,102 psi | 83% | 2461 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,010 psi | 68% | 2300 fps | 95.8% |
| Shooters World Precision | <<locked>> | 86% | 35,969 psi | 76% | 2356 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,128 psi | 75% | 2260 fps | 97.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,747 psi | 61% | 2136 fps | 96.4% |
| Somchem S321 | <<locked>> | 80% | 37,623 psi | 80% | 2398 fps | 96% |
| Somchem S335 | <<locked>> | 80% | 34,896 psi | 74% | 2274 fps | 98.2% |
| Vihtavuori N130 | <<locked>> | 80% | 39,624 psi | 84% | 2346 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 34,809 psi | 74% | 2270 fps | 99.3% |
| Vihtavuori N135 | <<locked>> | 80% | 30,240 psi | 64% | 2244 fps | 98.7% |
| Vihtavuori N140 | <<locked>> | 80% | 31,299 psi | 66% | 2238 fps | 96.7% |
| Vihtavuori N150 | <<locked>> | 90% | 34,214 psi | 73% | 2320 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 82% | 37,782 psi | 80% | 2375 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 30,255 psi | 64% | 2228 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 33,997 psi | 72% | 2352 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 88% | 40,161 psi | 85% | 2470 fps | 95.5% |
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 .30-40 Krag loaded with the .308 | 159gr | IBEX TRD. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,589 fps; across all powders the maximum-charge window runs from 1,578 fps to 2,589 fps. Hodgdon TrailBoss 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 (325 MPa), the top charges use 72–90 %, leaving at least 10 % headroom. The 159.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14 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, IMR 3031, Accurate 4064 rank at the top here: for .30-40 Krag with the .308 | 159gr | IBEX TRD 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.