Load Specifications
Load data in caliber .30 Rem. with .308 | 135gr | Alaska Bullet Works Kodiak SP SPBC bullet and 12 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 Alliant AR-Comp.
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: 22"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 82% | 36,550 psi | 90% | 2290 fps | 96.9% |
| ADI AR 2207 | <<locked>> | 86% | 36,216 psi | 89% | 2369 fps | 99.7% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 36,637 psi | 90% | 2448 fps | 98.3% |
| Alliant Reloder-10x | <<locked>> | 92% | 35,607 psi | 88% | 2375 fps | 96.9% |
| Alliant Reloder-7 | <<locked>> | 84% | 35,592 psi | 88% | 2313 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,443 psi | 75% | 1529 fps | 100% |
| IMR 4198 | <<locked>> | 88% | 34,838 psi | 86% | 2303 fps | 97.5% |
| Norma 200 | <<locked>> | 88% | 35,795 psi | 88% | 2369 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,008 psi | 74% | 1562 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 36,448 psi | 90% | 2159 fps | 100% |
| Vihtavuori N120 | <<locked>> | 86% | 36,448 psi | 90% | 2336 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 34,838 psi | 86% | 2300 fps | 96.3% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 22"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 34,534 psi | 85% | 2251 fps | 96.3% |
| ADI AR 2207 | <<locked>> | 80% | 29,834 psi | 73% | 2231 fps | 98.6% |
| Alliant AR-Comp | 29.1 gr | 92% | 28,877 psi | 71% | 2257 fps | 95.3% |
| Alliant Reloder-10x | 27.1 gr | 88% | 31,618 psi | 78% | 2290 fps | 95.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 31,676 psi | 78% | 2228 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,321 psi | 55% | 1362 fps | 100% |
| IMR 4198 | <<locked>> | 82% | 29,283 psi | 72% | 2169 fps | 95.4% |
| Norma 200 | 25.6 gr | 80% | 27,992 psi | 69% | 2188 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,118 psi | 54% | 1398 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 34,345 psi | 85% | 2119 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 30,124 psi | 74% | 2208 fps | 99.4% |
| Vihtavuori N130 | <<locked>> | 90% | 32,909 psi | 81% | 2260 fps | 95.6% |
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 31 powders for .30 Rem. loaded with the .308 | 135gr | Alaska Bullet Works Kodiak SP SPBC. Alliant AR-Comp delivers the highest muzzle velocity at 2,448 fps; across all powders the maximum-charge window runs from 1,529 fps to 2,448 fps. Accurate 2495 gives the best case fill at 100 %, and 31 of the 31 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 68–90 %, leaving at least 10 % headroom. The 135.0 gr projectile in 0.308" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, 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, Alliant AR-Comp rank at the top here: for .30 Rem. with the .308 | 135gr | Alaska Bullet Works Kodiak SP SPBC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2460, Accurate 2495, Accurate LT-30 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.