Load Specifications
Load data in caliber .300 PRC with .308 | 230gr | Berger Hybrid OTM Tactical bullet and 69 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and ReloadSwiss RS 80.
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 3100 | <<locked>> | 90% | 56,362 psi | 87% | 2605 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 57,261 psi | 88% | 2618 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 55,230 psi | 85% | 2707 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 88% | 58,030 psi | 89% | 2684 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 55,970 psi | 86% | 2700 fps | 99.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 57,943 psi | 89% | 2726 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 50,241 psi | 77% | 2713 fps | 97.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 52,446 psi | 81% | 2697 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 58,465 psi | 90% | 2667 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 57,537 psi | 89% | 2677 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 56,347 psi | 87% | 2694 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 58,001 psi | 89% | 2654 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 57,943 psi | 89% | 2723 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 58,769 psi | 90% | 2743 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 55,027 psi | 85% | 2762 fps | 98.2% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 56,623 psi | 87% | 2664 fps | 98.5% |
| Bofors RP15 | <<locked>> | 92% | 55,738 psi | 86% | 2684 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 57,435 psi | 88% | 2740 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 56,347 psi | 87% | 2694 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 58,552 psi | 90% | 2615 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 55,811 psi | 86% | 2697 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 58,624 psi | 90% | 2671 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 55,405 psi | 85% | 2638 fps | 99.5% |
| Hodgdon H4831 SC | <<locked>> | 90% | 58,088 psi | 89% | 2674 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 58,465 psi | 90% | 2592 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 56,753 psi | 87% | 2805 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,681 psi | 58% | 1634 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 56,942 psi | 88% | 2608 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 57,450 psi | 88% | 2608 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 56,202 psi | 86% | 2618 fps | 99.6% |
| IMR 7828 SSC | <<locked>> | 92% | 58,117 psi | 89% | 2736 fps | 100% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 47,950 psi | 74% | 2618 fps | 99.4% |
| Lovex S065 | <<locked>> | 82% | 57,159 psi | 88% | 2582 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 55,724 psi | 86% | 2585 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 57,928 psi | 89% | 2621 fps | 100% |
| Norma 204 | <<locked>> | 84% | 58,044 psi | 89% | 2664 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 48,544 psi | 75% | 2641 fps | 100% |
| Norma MRP | <<locked>> | 88% | 56,333 psi | 87% | 2710 fps | 100% |
| Norma URP | <<locked>> | 82% | 55,521 psi | 85% | 2602 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 55,245 psi | 85% | 2703 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 84% | 57,885 psi | 89% | 2661 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 57,711 psi | 89% | 2697 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,566 psi | 59% | 1670 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 57,450 psi | 88% | 2644 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 55,709 psi | 86% | 2664 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 57,406 psi | 88% | 2802 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 56,637 psi | 87% | 2769 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 86% | 55,114 psi | 85% | 2605 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 88% | 57,203 psi | 88% | 2664 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 58,552 psi | 90% | 2615 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 57,159 psi | 88% | 2582 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 55,724 psi | 86% | 2585 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 56,231 psi | 87% | 2543 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 56,782 psi | 87% | 2664 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 56,463 psi | 87% | 2602 fps | 99.6% |
| Somchem S365 | <<locked>> | 84% | 56,637 psi | 87% | 2602 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 57,624 psi | 89% | 2638 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 56,985 psi | 88% | 2589 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 57,319 psi | 88% | 2625 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 55,898 psi | 86% | 2648 fps | 96.7% |
| Vihtavuori N550 | <<locked>> | 82% | 56,217 psi | 86% | 2598 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 56,681 psi | 87% | 2635 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 55,912 psi | 86% | 2713 fps | 99.7% |
| Vihtavuori N565 | <<locked>> | 94% | 56,507 psi | 87% | 2707 fps | 99.8% |
| Vihtavuori N568 | <<locked>> | 98% | 57,392 psi | 88% | 2769 fps | 99.4% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 58,494 psi | 90% | 2828 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 56,318 psi | 87% | 2549 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 57,566 psi | 89% | 2743 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 57,319 psi | 88% | 2638 fps | 100% |
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 3100 | <<locked>> | 80% | 40,640 psi | 63% | 2362 fps | 99.9% |
| Accurate 4350 | <<locked>> | 80% | 53,693 psi | 83% | 2569 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 41,698 psi | 64% | 2474 fps | 96.9% |
| ADI AR 2209 | <<locked>> | 80% | 44,585 psi | 69% | 2477 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 80% | 39,914 psi | 61% | 2421 fps | 97.5% |
| ADI AR 2217 | <<locked>> | 84% | 33,953 psi | 52% | 2293 fps | 95.7% |
| ADI AR 2218 | <<locked>> | 98% | 46,717 psi | 72% | 2644 fps | 96.1% |
| ADI AR 2225 | <<locked>> | 80% | 27,166 psi | 42% | 2156 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 51,227 psi | 79% | 2569 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 44,599 psi | 69% | 2470 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,524 psi | 62% | 2428 fps | 98.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 39,276 psi | 60% | 2375 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 33,924 psi | 52% | 2320 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 80% | 43,859 psi | 67% | 2526 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 44,077 psi | 68% | 2575 fps | 95.6% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 44,193 psi | 68% | 2454 fps | 95.7% |
| Bofors RP15 | <<locked>> | 80% | 37,681 psi | 58% | 2369 fps | 97.9% |
| Bofors RP30 | <<locked>> | 82% | 33,649 psi | 52% | 2310 fps | 95.9% |
| Bofors RP5 | <<locked>> | 80% | 40,524 psi | 62% | 2428 fps | 98.7% |
| Bofors RP7 | <<locked>> | 80% | 54,897 psi | 84% | 2566 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 32,285 psi | 50% | 2254 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 80% | 54,926 psi | 85% | 2618 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 42,467 psi | 65% | 2421 fps | 97.5% |
| Hodgdon H4831 SC | <<locked>> | 80% | 41,771 psi | 64% | 2408 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 48,312 psi | 74% | 2457 fps | 100% |
| Hodgdon Retumbo | 66.5 gr | 80% | 33,112 psi | 51% | 2352 fps | 97.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,268 psi | 43% | 1457 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 50,270 psi | 77% | 2510 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 50,560 psi | 78% | 2516 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,743 psi | 67% | 2415 fps | 97.9% |
| IMR 7828 SSC | <<locked>> | 80% | 38,711 psi | 60% | 2408 fps | 97.2% |
| IMR 8133 Enduron | <<locked>> | 88% | 32,140 psi | 49% | 2297 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 53,809 psi | 83% | 2536 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 52,214 psi | 80% | 2536 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 35,128 psi | 54% | 2251 fps | 99.2% |
| Norma 204 | <<locked>> | 80% | 50,821 psi | 78% | 2559 fps | 99.8% |
| Norma 217 | <<locked>> | 84% | 28,239 psi | 43% | 2211 fps | 95.5% |
| Norma MRP | <<locked>> | 80% | 42,699 psi | 66% | 2493 fps | 99.7% |
| Norma URP | <<locked>> | 80% | 51,953 psi | 80% | 2549 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 38,464 psi | 59% | 2415 fps | 97.5% |
| Ramshot Hunter | <<locked>> | 80% | 50,850 psi | 78% | 2559 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 34,316 psi | 53% | 2303 fps | 97.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,950 psi | 45% | 1490 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 53,592 psi | 82% | 2589 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 52,011 psi | 80% | 2615 fps | 100% |
| ReloadSwiss RS 76 | 71.2 gr | 80% | 32,126 psi | 49% | 2329 fps | 98.1% |
| ReloadSwiss RS 80 | 77.2 gr | 86% | 36,274 psi | 56% | 2408 fps | 95.2% |
| Rottweil R 904 | <<locked>> | 80% | 45,542 psi | 70% | 2451 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 80% | 44,179 psi | 68% | 2461 fps | 99.3% |
| Rottweil R 907 | <<locked>> | 80% | 54,897 psi | 84% | 2566 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 53,809 psi | 83% | 2536 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 52,214 psi | 80% | 2536 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 52,692 psi | 81% | 2493 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 43,830 psi | 67% | 2457 fps | 99.3% |
| Somchem S361 | <<locked>> | 80% | 46,369 psi | 71% | 2444 fps | 98.3% |
| Somchem S365 | <<locked>> | 80% | 49,632 psi | 76% | 2510 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 44,541 psi | 69% | 2441 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 53,548 psi | 82% | 2543 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 38,899 psi | 60% | 2329 fps | 98.7% |
| Vihtavuori N170 | <<locked>> | 92% | 49,037 psi | 75% | 2539 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 52,707 psi | 81% | 2549 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 43,874 psi | 67% | 2448 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 42,554 psi | 65% | 2487 fps | 97.7% |
| Vihtavuori N565 | <<locked>> | 80% | 35,346 psi | 54% | 2326 fps | 95.7% |
| Vihtavuori N568 | <<locked>> | 86% | 37,681 psi | 58% | 2421 fps | 95.1% |
| Vihtavuori N570 | <<locked>> | 92% | 44,106 psi | 68% | 2585 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 52,591 psi | 81% | 2503 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 36,593 psi | 56% | 2425 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 40,915 psi | 63% | 2379 fps | 98.7% |
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 76 powders for .300 PRC loaded with the .308 | 230gr | Berger Hybrid OTM Tactical. Vihtavuori N570 delivers the highest muzzle velocity at 2,828 fps; across all powders the maximum-charge window runs from 1,634 fps to 2,828 fps. Accurate 8700 gives the best case fill at 100 %, and 76 of the 76 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 230.0 gr projectile in 0.308" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 8700, ADI AR 2217, ADI AR 2218 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. Hodgdon Retumbo, ReloadSwiss RS 76, ReloadSwiss RS 80 rank at the top here: for .300 PRC with the .308 | 230gr | Berger Hybrid OTM Tactical they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 8700, Lovex D100, Ramshot LRT 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.