Load Specifications
Load data in caliber .300 PRC with .308 | 180gr | Nosler Partition SP bullet and 74 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Vihtavuori N560 and Norma MRP.
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>> | 94% | 56,144 psi | 86% | 2923 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 57,479 psi | 88% | 2956 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 58,711 psi | 90% | 3081 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 82% | 57,914 psi | 89% | 2910 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 58,189 psi | 90% | 3015 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 94% | 55,927 psi | 86% | 3018 fps | 98.6% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 50,169 psi | 77% | 2913 fps | 97.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 44,904 psi | 69% | 2871 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 88% | 58,233 psi | 90% | 3012 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 55,666 psi | 86% | 2969 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 57,551 psi | 89% | 3002 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 55,999 psi | 86% | 3015 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 96% | 57,188 psi | 88% | 2986 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 56,623 psi | 87% | 3048 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 57,943 psi | 89% | 3077 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 57,464 psi | 88% | 2972 fps | 96.3% |
| Bofors RP15 | <<locked>> | 98% | 58,784 psi | 90% | 3054 fps | 99.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 52,649 psi | 81% | 2986 fps | 98.6% |
| Bofors RP5 | <<locked>> | 94% | 55,999 psi | 86% | 3015 fps | 99.4% |
| Bofors RP7 | <<locked>> | 84% | 56,028 psi | 86% | 2904 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 55,317 psi | 85% | 3002 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 84% | 55,216 psi | 85% | 2953 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 57,856 psi | 89% | 2969 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 92% | 55,927 psi | 86% | 2956 fps | 98% |
| Hodgdon H4831 SC | <<locked>> | 94% | 58,523 psi | 90% | 2999 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 58,479 psi | 90% | 2933 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 55,579 psi | 86% | 3120 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 84% | 55,651 psi | 86% | 2989 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,130 psi | 57% | 1854 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 57,580 psi | 89% | 2940 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 57,261 psi | 88% | 2923 fps | 99.9% |
| IMR 4831 | <<locked>> | 88% | 57,595 psi | 89% | 2946 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 56,768 psi | 87% | 2940 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 96% | 57,580 psi | 89% | 3058 fps | 98.9% |
| Lovex S065 | <<locked>> | 86% | 57,986 psi | 89% | 2923 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 56,333 psi | 87% | 2920 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 57,217 psi | 88% | 2940 fps | 100% |
| Norma 204 | <<locked>> | 86% | 54,882 psi | 84% | 2940 fps | 99.1% |
| Norma 217ᴾ | <<locked>> | 100% | 40,422 psi | 62% | 2789 fps | 97.7% |
| Norma MRP | <<locked>> | 92% | 55,956 psi | 86% | 3035 fps | 99.9% |
| Norma URP | <<locked>> | 86% | 55,796 psi | 86% | 2940 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 58,682 psi | 90% | 3081 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 88% | 58,363 psi | 90% | 2999 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 57,000 psi | 88% | 3012 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,000 psi | 58% | 1896 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 57,464 psi | 88% | 2979 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 55,767 psi | 86% | 3005 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 56,478 psi | 87% | 3117 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 51,140 psi | 79% | 2992 fps | 97% |
| Rottweil R 903 | <<locked>> | 82% | 57,435 psi | 88% | 2904 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 55,666 psi | 86% | 2927 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 92% | 57,145 psi | 88% | 2992 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 84% | 56,028 psi | 86% | 2904 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 57,986 psi | 89% | 2923 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 56,333 psi | 87% | 2920 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 56,869 psi | 87% | 2769 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 57,246 psi | 88% | 2877 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 56,695 psi | 87% | 2986 fps | 99.5% |
| Somchem S355 | <<locked>> | 82% | 56,942 psi | 88% | 2894 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 57,116 psi | 88% | 2917 fps | 98.2% |
| Somchem S365 | <<locked>> | 88% | 56,217 psi | 86% | 2940 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 57,653 psi | 89% | 2963 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 84% | 58,160 psi | 89% | 2864 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 57,537 psi | 89% | 2930 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 57,363 psi | 88% | 2946 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 86% | 56,623 psi | 87% | 2933 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 55,927 psi | 86% | 2963 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 55,753 psi | 86% | 3031 fps | 98.2% |
| Vihtavuori N565 | <<locked>> | 98% | 55,666 psi | 86% | 3009 fps | 98.4% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 52,373 psi | 81% | 3002 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 56,971 psi | 88% | 2887 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 55,390 psi | 85% | 2956 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 96% | 55,201 psi | 85% | 3068 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 57,711 psi | 89% | 2959 fps | 99.5% |
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% | 35,012 psi | 54% | 2526 fps | 97.1% |
| Accurate 4350 | <<locked>> | 80% | 46,818 psi | 72% | 2785 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 47,500 psi | 73% | 2884 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 54,491 psi | 84% | 2861 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 38,957 psi | 60% | 2654 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 86% | 42,627 psi | 66% | 2762 fps | 95.4% |
| ADI AR 2217 | <<locked>> | 94% | 41,046 psi | 63% | 2723 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 92% | 34,548 psi | 53% | 2618 fps | 96% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,860 psi | 69% | 2792 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 51,750 psi | 80% | 2910 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 39,030 psi | 60% | 2651 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 82% | 37,275 psi | 57% | 2644 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 33,605 psi | 52% | 2556 fps | 99.5% |
| Alliant Reloder-25 | <<locked>> | 80% | 29,225 psi | 45% | 2454 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 36,869 psi | 57% | 2694 fps | 98.9% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 54,114 psi | 83% | 2917 fps | 95.5% |
| Bofors RP15 | <<locked>> | 86% | 39,755 psi | 61% | 2703 fps | 96% |
| Bofors RP30 | <<locked>> | 92% | 39,943 psi | 61% | 2736 fps | 95.3% |
| Bofors RP5 | <<locked>> | 82% | 37,275 psi | 57% | 2644 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 49,327 psi | 76% | 2792 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 90% | 39,334 psi | 61% | 2687 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 80% | 48,356 psi | 74% | 2835 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 80% | 50,937 psi | 78% | 2851 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 86% | 45,556 psi | 70% | 2772 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 86% | 44,730 psi | 69% | 2753 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 42,279 psi | 65% | 2674 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 37,202 psi | 57% | 2726 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 47,993 psi | 74% | 2858 fps | 99.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,833 psi | 43% | 1657 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,730 psi | 69% | 2720 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,720 psi | 78% | 2818 fps | 99.5% |
| IMR 4831 | <<locked>> | 80% | 44,425 psi | 68% | 2730 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 44,135 psi | 68% | 2710 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 86% | 41,017 psi | 63% | 2740 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 48,298 psi | 74% | 2766 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 46,528 psi | 72% | 2753 fps | 99.1% |
| Lovex S071 | <<locked>> | 80% | 30,182 psi | 46% | 2402 fps | 95.1% |
| Norma 204 | <<locked>> | 80% | 44,860 psi | 69% | 2756 fps | 97.3% |
| Norma 217 | <<locked>> | 96% | 35,404 psi | 54% | 2667 fps | 95.8% |
| Norma MRP | 73.4 gr | 80% | 36,579 psi | 56% | 2654 fps | 96.5% |
| Norma URP | <<locked>> | 80% | 45,788 psi | 70% | 2769 fps | 99.9% |
| Ramshot Grand | <<locked>> | 86% | 40,785 psi | 63% | 2746 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 44,701 psi | 69% | 2769 fps | 99.3% |
| Ramshot Magnum | <<locked>> | 86% | 36,477 psi | 56% | 2625 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,398 psi | 44% | 1693 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 46,847 psi | 72% | 2808 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,976 psi | 69% | 2822 fps | 99.9% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 33,924 psi | 52% | 2631 fps | 95.5% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 47,427 psi | 73% | 2923 fps | 96% |
| Rottweil R 903 | <<locked>> | 80% | 53,737 psi | 83% | 2848 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 42,975 psi | 66% | 2694 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 80% | 38,421 psi | 59% | 2635 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 49,327 psi | 76% | 2792 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 48,298 psi | 74% | 2766 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 46,528 psi | 72% | 2753 fps | 99.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 53,606 psi | 82% | 2726 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 47,268 psi | 73% | 2713 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 38,087 psi | 59% | 2628 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 53,534 psi | 82% | 2844 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 43,961 psi | 68% | 2684 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 42,888 psi | 66% | 2726 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 39,015 psi | 60% | 2621 fps | 96.8% |
| Vihtavuori N150 | <<locked>> | 80% | 51,155 psi | 79% | 2766 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 47,253 psi | 73% | 2769 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 36,129 psi | 56% | 2546 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 46,586 psi | 72% | 2769 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 37,695 psi | 58% | 2631 fps | 99.4% |
| Vihtavuori N560 | 78.9 gr | 86% | 45,295 psi | 70% | 2838 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 90% | 42,279 psi | 65% | 2759 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 98% | 48,646 psi | 75% | 2933 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 46,470 psi | 71% | 2730 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 48,544 psi | 75% | 2838 fps | 99.3% |
| Winchester StaBALL HD | 72.6 gr | 80% | 29,892 psi | 46% | 2566 fps | 99.6% |
| Winchester Supreme 780 | <<locked>> | 82% | 38,116 psi | 59% | 2598 fps | 95.5% |
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 | 180gr | Nosler Partition SP. Hodgdon Retumbo delivers the highest muzzle velocity at 3,120 fps; across all powders the maximum-charge window runs from 1,854 fps to 3,120 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 180.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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. Winchester StaBALL HD, Vihtavuori N560, Norma MRP rank at the top here: for .300 PRC with the .308 | 180gr | Nosler Partition SP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-33, IMR 7977 Enduron, Vihtavuori N170 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.