Load Specifications
Load data in caliber .30-30 Ackley Improved with .308 | 122gr | Sax KJG-SX bullet and 18 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-10x, Norma 200 and ADI AR 2207.
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 1680 | <<locked>> | 86% | 41,713 psi | 90% | 2484 fps | 98.2% |
| Accurate 2015ᴾ | <<locked>> | 100% | 39,117 psi | 84% | 2520 fps | 96.8% |
| ADI AR 2207 | <<locked>> | 90% | 40,437 psi | 87% | 2546 fps | 100% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 36,376 psi | 78% | 2533 fps | 98.4% |
| Alliant Reloder-10x | <<locked>> | 96% | 39,987 psi | 86% | 2559 fps | 98.2% |
| Alliant Reloder-7 | <<locked>> | 88% | 39,987 psi | 86% | 2497 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,110 psi | 65% | 1621 fps | 100% |
| IMR 4198 | <<locked>> | 94% | 40,640 psi | 88% | 2520 fps | 98.9% |
| IMR 4227 | <<locked>> | 84% | 41,669 psi | 90% | 2484 fps | 99.7% |
| Lovex S053 | <<locked>> | 84% | 40,596 psi | 87% | 2454 fps | 100% |
| Norma 200 | <<locked>> | 92% | 40,451 psi | 87% | 2556 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,617 psi | 64% | 1657 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 40,669 psi | 88% | 2503 fps | 99.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 41,901 psi | 90% | 2346 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 41,408 psi | 89% | 2556 fps | 96.4% |
| Vihtavuori N120 | <<locked>> | 90% | 40,683 psi | 88% | 2513 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 41,684 psi | 90% | 2523 fps | 98.2% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 38,261 psi | 82% | 2457 fps | 96.2% |
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% | 33,968 psi | 73% | 2336 fps | 96.3% |
| Accurate 2015 | <<locked>> | 96% | 34,461 psi | 74% | 2431 fps | 95.4% |
| ADI AR 2207 | 25.3 gr | 80% | 29,370 psi | 63% | 2326 fps | 98.6% |
| Alliant AR-Comp | <<locked>> | 92% | 28,500 psi | 61% | 2343 fps | 95.4% |
| Alliant Reloder-10x | 28.1 gr | 88% | 31,270 psi | 67% | 2382 fps | 95.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 31,227 psi | 67% | 2316 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,973 psi | 47% | 1447 fps | 100% |
| IMR 4198 | <<locked>> | 82% | 28,935 psi | 62% | 2264 fps | 95.3% |
| IMR 4227 | <<locked>> | 80% | 37,028 psi | 80% | 2398 fps | 99.1% |
| Lovex S053 | <<locked>> | 80% | 36,158 psi | 78% | 2379 fps | 100% |
| Norma 200 | 26.5 gr | 80% | 27,514 psi | 59% | 2277 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,727 psi | 47% | 1483 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 35,911 psi | 77% | 2415 fps | 98.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 33,808 psi | 73% | 2218 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 39,175 psi | 84% | 2516 fps | 95.8% |
| Vihtavuori N120 | <<locked>> | 80% | 29,660 psi | 64% | 2300 fps | 99.4% |
| Vihtavuori N130 | <<locked>> | 88% | 30,705 psi | 66% | 2306 fps | 95% |
| Vihtavuori N133 | <<locked>> | 98% | 36,187 psi | 78% | 2418 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 18 powders for .30-30 Ackley Improved loaded with the .308 | 122gr | Sax KJG-SX. Alliant Reloder-10x delivers the highest muzzle velocity at 2,559 fps; across all powders the maximum-charge window runs from 1,621 fps to 2,559 fps. Accurate 2015 gives the best case fill at 100 %, and 18 of the 18 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (320 MPa), the top charges use 64–90 %, leaving at least 10 % headroom. The 122.0 gr projectile in 0.308" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 2015, Alliant AR-Comp, Hodgdon TrailBoss 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. Alliant Reloder-10x, Norma 200, ADI AR 2207 rank at the top here: for .30-30 Ackley Improved with the .308 | 122gr | Sax KJG-SX 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.