Load Specifications
Load data in caliber .300 PRC with .308 | 208gr | Berger Long Range Hybrid Target bullet and 72 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 Winchester StaBALL HD.
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>> | 92% | 55,579 psi | 86% | 2723 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 56,782 psi | 87% | 2743 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 54,926 psi | 85% | 2822 fps | 98.1% |
| ADI AR 2209 | <<locked>> | 90% | 57,305 psi | 88% | 2805 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 92% | 55,143 psi | 85% | 2815 fps | 99.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 53,069 psi | 82% | 2782 fps | 99.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 47,645 psi | 73% | 2746 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 86% | 57,769 psi | 89% | 2795 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 58,726 psi | 90% | 2802 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 56,797 psi | 87% | 2795 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 92% | 55,405 psi | 85% | 2808 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 94% | 56,956 psi | 88% | 2776 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 56,231 psi | 87% | 2838 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 57,392 psi | 88% | 2864 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 56,463 psi | 87% | 2779 fps | 97.4% |
| Bofors RP15 | <<locked>> | 96% | 58,131 psi | 89% | 2848 fps | 99.9% |
| Bofors RP30ᴾ | <<locked>> | 100% | 55,941 psi | 86% | 2848 fps | 99.7% |
| Bofors RP5 | <<locked>> | 92% | 55,405 psi | 85% | 2808 fps | 99.9% |
| Bofors RP7 | <<locked>> | 84% | 58,494 psi | 90% | 2743 fps | 100% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 58,537 psi | 90% | 2861 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 84% | 58,204 psi | 90% | 2795 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 56,811 psi | 87% | 2753 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 92% | 58,697 psi | 90% | 2808 fps | 99.3% |
| Hodgdon H4831 SC | <<locked>> | 92% | 57,580 psi | 89% | 2792 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 57,856 psi | 89% | 2720 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 55,187 psi | 85% | 2917 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 54,810 psi | 84% | 2779 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,289 psi | 57% | 1709 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 56,623 psi | 87% | 2730 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 56,289 psi | 87% | 2710 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 57,029 psi | 88% | 2736 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 55,796 psi | 86% | 2733 fps | 99% |
| IMR 7828 SSC | <<locked>> | 94% | 57,101 psi | 88% | 2851 fps | 99.6% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 43,149 psi | 66% | 2654 fps | 97.7% |
| Lovex S065 | <<locked>> | 84% | 57,000 psi | 88% | 2707 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 58,798 psi | 90% | 2759 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 56,884 psi | 88% | 2740 fps | 100% |
| Norma 204 | <<locked>> | 86% | 57,725 psi | 89% | 2789 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 43,555 psi | 67% | 2684 fps | 99.4% |
| Norma MRP | <<locked>> | 90% | 55,419 psi | 85% | 2828 fps | 100% |
| Norma URP | <<locked>> | 86% | 58,494 psi | 90% | 2772 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 58,146 psi | 89% | 2877 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 86% | 57,348 psi | 88% | 2785 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 56,260 psi | 87% | 2805 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,276 psi | 59% | 1752 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 56,710 psi | 87% | 2766 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 55,027 psi | 85% | 2795 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 55,985 psi | 86% | 2913 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 55,056 psi | 85% | 2874 fps | 98.8% |
| Rottweil R 904 | <<locked>> | 90% | 58,392 psi | 90% | 2776 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 90% | 56,608 psi | 87% | 2785 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 84% | 58,494 psi | 90% | 2743 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 57,000 psi | 88% | 2707 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 58,813 psi | 90% | 2759 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 56,159 psi | 86% | 2667 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 56,188 psi | 86% | 2782 fps | 99.9% |
| Somchem S361 | <<locked>> | 88% | 56,072 psi | 86% | 2717 fps | 98.9% |
| Somchem S365 | <<locked>> | 86% | 55,680 psi | 86% | 2726 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 56,840 psi | 87% | 2756 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 57,246 psi | 88% | 2651 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 56,739 psi | 87% | 2717 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 56,652 psi | 87% | 2743 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 55,854 psi | 86% | 2723 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 55,550 psi | 85% | 2756 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 55,085 psi | 85% | 2825 fps | 99.1% |
| Vihtavuori N565 | <<locked>> | 96% | 55,187 psi | 85% | 2812 fps | 99.2% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 55,869 psi | 86% | 2874 fps | 98.5% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 52,707 psi | 81% | 2864 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 56,072 psi | 86% | 2677 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 58,436 psi | 90% | 2799 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 55,332 psi | 85% | 2861 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 56,710 psi | 87% | 2753 fps | 99.8% |
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% | 37,188 psi | 57% | 2408 fps | 98.9% |
| Accurate 4350 | <<locked>> | 80% | 49,487 psi | 76% | 2638 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 44,527 psi | 69% | 2641 fps | 95.7% |
| ADI AR 2209 | <<locked>> | 80% | 41,249 psi | 63% | 2530 fps | 97.8% |
| ADI AR 2213 | <<locked>> | 80% | 36,854 psi | 57% | 2464 fps | 95% |
| ADI AR 2217 | <<locked>> | 90% | 38,029 psi | 59% | 2493 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 86% | 30,211 psi | 46% | 2346 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 47,413 psi | 73% | 2644 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 54,897 psi | 84% | 2753 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,191 psi | 63% | 2523 fps | 97.8% |
| Alliant Reloder-22 | <<locked>> | 80% | 37,173 psi | 57% | 2474 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,868 psi | 55% | 2431 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,096 psi | 48% | 2356 fps | 97.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 39,581 psi | 61% | 2575 fps | 99.9% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 46,862 psi | 72% | 2608 fps | 95.1% |
| Bofors RP15 | <<locked>> | 80% | 34,548 psi | 53% | 2411 fps | 95.6% |
| Bofors RP30 | <<locked>> | 86% | 34,896 psi | 54% | 2451 fps | 95% |
| Bofors RP5 | <<locked>> | 80% | 37,173 psi | 57% | 2474 fps | 96.8% |
| Bofors RP7 | <<locked>> | 80% | 51,561 psi | 79% | 2638 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 86% | 36,332 psi | 56% | 2457 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 51,053 psi | 79% | 2690 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 80% | 53,447 psi | 82% | 2703 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 80% | 39,247 psi | 60% | 2470 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 80% | 38,624 psi | 59% | 2454 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,759 psi | 69% | 2530 fps | 100% |
| Hodgdon Retumbo | 68.4 gr | 82% | 32,430 psi | 50% | 2434 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 51,010 psi | 78% | 2723 fps | 99.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,094 psi | 43% | 1529 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,021 psi | 72% | 2579 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,808 psi | 81% | 2657 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 46,978 psi | 72% | 2585 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,872 psi | 63% | 2470 fps | 96% |
| IMR 7828 SSC | <<locked>> | 82% | 37,985 psi | 58% | 2500 fps | 95.6% |
| IMR 8133 Enduron | <<locked>> | 94% | 35,476 psi | 55% | 2487 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 50,546 psi | 78% | 2612 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,863 psi | 75% | 2608 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 32,111 psi | 49% | 2293 fps | 97.5% |
| Norma 204 | <<locked>> | 80% | 47,239 psi | 73% | 2618 fps | 98.8% |
| Norma 217 | <<locked>> | 90% | 31,096 psi | 48% | 2395 fps | 95.6% |
| Norma MRP | <<locked>> | 80% | 38,943 psi | 60% | 2539 fps | 98.5% |
| Norma URP | <<locked>> | 80% | 48,327 psi | 74% | 2625 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 37,681 psi | 58% | 2510 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 47,166 psi | 73% | 2628 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 80% | 31,241 psi | 48% | 2333 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,732 psi | 44% | 1565 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 49,458 psi | 76% | 2661 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 47,732 psi | 73% | 2684 fps | 100% |
| ReloadSwiss RS 76 | 73.2 gr | 82% | 31,415 psi | 48% | 2408 fps | 96.2% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 40,669 psi | 63% | 2615 fps | 95.4% |
| Rottweil R 904 | <<locked>> | 80% | 42,453 psi | 65% | 2507 fps | 97% |
| Rottweil R 905 | <<locked>> | 80% | 40,611 psi | 62% | 2510 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 80% | 51,561 psi | 79% | 2638 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,546 psi | 78% | 2612 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,878 psi | 75% | 2608 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,443 psi | 76% | 2566 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 40,277 psi | 62% | 2507 fps | 97.7% |
| Somchem S361 | <<locked>> | 80% | 43,207 psi | 66% | 2500 fps | 96.5% |
| Somchem S365 | <<locked>> | 80% | 45,687 psi | 70% | 2582 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 41,249 psi | 63% | 2493 fps | 98.6% |
| Vihtavuori N150 | <<locked>> | 80% | 53,621 psi | 82% | 2605 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 49,705 psi | 76% | 2618 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,708 psi | 55% | 2375 fps | 96.8% |
| Vihtavuori N550 | <<locked>> | 80% | 49,124 psi | 76% | 2621 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 40,089 psi | 62% | 2503 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 38,986 psi | 60% | 2526 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 86% | 39,465 psi | 61% | 2530 fps | 95.9% |
| Vihtavuori N568 | <<locked>> | 92% | 42,003 psi | 65% | 2628 fps | 95.3% |
| Vihtavuori N570 | <<locked>> | 98% | 49,139 psi | 76% | 2799 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,863 psi | 75% | 2579 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 51,053 psi | 79% | 2690 fps | 99.9% |
| Winchester StaBALL HD | 68.5 gr | 80% | 32,314 psi | 50% | 2467 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,753 psi | 58% | 2425 fps | 96.9% |
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 79 powders for .300 PRC loaded with the .308 | 208gr | Berger Long Range Hybrid Target. Hodgdon Retumbo delivers the highest muzzle velocity at 2,917 fps; across all powders the maximum-charge window runs from 1,709 fps to 2,917 fps. ADI AR 2217 gives the best case fill at 100 %, and 79 of the 79 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 208.0 gr projectile in 0.308" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2218, ADI AR 2225 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, Winchester StaBALL HD rank at the top here: for .300 PRC with the .308 | 208gr | Berger Long Range Hybrid Target they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2218, Alliant Reloder-50, IMR 7977 Enduron 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.