Load Specifications
Load data in caliber .30 Rem. with .308 | 123gr | Sako Gamehead bullet and 12 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma 200, IMR 4198 and ReloadSwiss RS 14.
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% | 35,752 psi | 88% | 2402 fps | 95.9% |
| ADI AR 2207 | <<locked>> | 86% | 34,853 psi | 86% | 2474 fps | 99.2% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 35,766 psi | 88% | 2556 fps | 97.2% |
| Alliant Reloder-10x | <<locked>> | 92% | 34,867 psi | 86% | 2493 fps | 96% |
| Alliant Reloder-7 | <<locked>> | 84% | 34,664 psi | 85% | 2421 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,226 psi | 74% | 1624 fps | 100% |
| IMR 4198 | <<locked>> | 90% | 36,027 psi | 89% | 2457 fps | 97.1% |
| Norma 200 | <<locked>> | 88% | 34,708 psi | 85% | 2477 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,718 psi | 73% | 1660 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 35,389 psi | 87% | 2274 fps | 100% |
| Vihtavuori N120 | <<locked>> | 86% | 35,085 psi | 86% | 2448 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 94% | 36,129 psi | 89% | 2457 fps | 95.9% |
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% | 33,533 psi | 83% | 2352 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 28,964 psi | 71% | 2336 fps | 97.8% |
| Alliant AR-Comp | <<locked>> | 96% | 31,473 psi | 78% | 2448 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 90% | 32,663 psi | 80% | 2441 fps | 95.2% |
| Alliant Reloder-7 | <<locked>> | 82% | 32,793 psi | 81% | 2379 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,191 psi | 55% | 1450 fps | 100% |
| IMR 4198 | 26.5 gr | 86% | 31,966 psi | 79% | 2362 fps | 95.7% |
| Norma 200 | 28.3 gr | 84% | 30,748 psi | 76% | 2385 fps | 95.4% |
| ReloadSwiss RS 14 | 9.5 gr | 80% | 21,944 psi | 54% | 1486 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 33,678 psi | 83% | 2241 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 29,269 psi | 72% | 2313 fps | 98.8% |
| Vihtavuori N130 | <<locked>> | 92% | 33,866 psi | 83% | 2408 fps | 95.1% |
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 12 powders for .30 Rem. loaded with the .308 | 123gr | Sako Gamehead. Alliant AR-Comp delivers the highest muzzle velocity at 2,556 fps; across all powders the maximum-charge window runs from 1,624 fps to 2,556 fps. Alliant AR-Comp gives the best case fill at 100 %, and 12 of the 12 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 73–89 %, leaving at least 11 % headroom. Alliant AR-Comp, 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. Norma 200, IMR 4198, ReloadSwiss RS 14 rank at the top here: for .30 Rem. with the .308 | 123gr | Sako Gamehead 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.