Load Specifications
Load data in caliber .30 Rem. with .308 | 111gr | TWENTY-NINE ERTP bullet and 8 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2207, Vihtavuori N120 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 |
|---|---|---|---|---|---|---|
| ADI AR 2207 | <<locked>> | 92% | 35,897 psi | 88% | 2602 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 28,790 psi | 71% | 1667 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 36,187 psi | 89% | 2497 fps | 97% |
| Lovex S053 | <<locked>> | 84% | 35,041 psi | 86% | 2480 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 28,195 psi | 69% | 1703 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 34,954 psi | 86% | 2516 fps | 96.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 34,969 psi | 86% | 2372 fps | 100% |
| Vihtavuori N120 | <<locked>> | 92% | 36,289 psi | 89% | 2572 fps | 99.2% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 22"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| ADI AR 2207 | 25.5 gr | 84% | 28,224 psi | 70% | 2408 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 20,958 psi | 52% | 1486 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 32,358 psi | 80% | 2408 fps | 95.8% |
| Lovex S053 | <<locked>> | 80% | 31,357 psi | 77% | 2395 fps | 98.6% |
| ReloadSwiss RS 14 | 8.9 gr | 80% | 20,639 psi | 51% | 1522 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 32,967 psi | 81% | 2470 fps | 95.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 29,718 psi | 73% | 2264 fps | 100% |
| Vihtavuori N120 | 24.3 gr | 80% | 25,411 psi | 63% | 2293 fps | 95.7% |
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 8 powders for .30 Rem. loaded with the .308 | 111gr | TWENTY-NINE ERTP. ADI AR 2207 delivers the highest muzzle velocity at 2,602 fps; across all powders the maximum-charge window runs from 1,667 fps to 2,602 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 8 of the 8 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 69–89 %, leaving at least 11 % headroom. The 111.0 gr projectile in 0.308" calls for a 1:13.5 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. ADI AR 2207, Vihtavuori N120, ReloadSwiss RS 14 rank at the top here: for .30 Rem. with the .308 | 111gr | TWENTY-NINE ERTP 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.