Load Specifications
Load data in caliber .30 Rem. with .308 | 150gr | Hornady InterLock RN bullet and 13 powders. The key underlying parameters are shown in the table above.
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 2015 | <<locked>> | 94% | 35,085 psi | 86% | 2221 fps | 96.6% |
| ADI AR 2207 | <<locked>> | 84% | 36,419 psi | 90% | 2234 fps | 100% |
| Alliant AR-Comp | <<locked>> | 98% | 36,709 psi | 90% | 2323 fps | 99.2% |
| Alliant Reloder-10x | <<locked>> | 90% | 36,143 psi | 89% | 2257 fps | 98.1% |
| Alliant Reloder-7 | <<locked>> | 82% | 35,708 psi | 88% | 2185 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,951 psi | 76% | 1440 fps | 100% |
| IMR 4198 | <<locked>> | 86% | 34,679 psi | 85% | 2172 fps | 98.4% |
| Norma 200 | <<locked>> | 86% | 36,013 psi | 89% | 2238 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,618 psi | 75% | 1473 fps | 100% |
| Vihtavuori N120 | <<locked>> | 84% | 36,651 psi | 90% | 2201 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 35,259 psi | 87% | 2182 fps | 97.5% |
| Vihtavuori N133 | <<locked>> | 96% | 36,579 psi | 90% | 2211 fps | 96.7% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 33,533 psi | 83% | 2234 fps | 96.2% |
Start Load - Barrel Length: 22"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 90% | 31,096 psi | 77% | 2139 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 32,140 psi | 79% | 2149 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 86% | 25,556 psi | 63% | 2051 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 82% | 28,268 psi | 70% | 2083 fps | 95.5% |
| Alliant Reloder-7 | <<locked>> | 80% | 33,663 psi | 83% | 2142 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,872 psi | 56% | 1286 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 29,269 psi | 72% | 2051 fps | 96.7% |
| Norma 200 | <<locked>> | 80% | 30,052 psi | 74% | 2116 fps | 97.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,423 psi | 55% | 1312 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 32,387 psi | 80% | 2126 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 29,153 psi | 72% | 2054 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 92% | 32,503 psi | 80% | 2133 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 98% | 31,589 psi | 78% | 2192 fps | 95.4% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 13 powders for .30 Rem. loaded with the .308 | 150gr | Hornady InterLock RN. Alliant AR-Comp delivers the highest muzzle velocity at 2,323 fps; across all powders the maximum-charge window runs from 1,440 fps to 2,323 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 13 of the 13 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 75–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N135 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.