Load Specifications
Load data in caliber .300 PRC with .308 | 180gr | Sellier & Bellot FMJ-BT bullet and 77 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, IMR 7828 SSC and Vihtavuori N560.
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% | 55,085 psi | 85% | 2907 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 56,478 psi | 87% | 2943 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 57,464 psi | 88% | 3058 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 82% | 57,363 psi | 88% | 2900 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 57,101 psi | 88% | 2995 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 96% | 58,726 psi | 90% | 3061 fps | 98.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,327 psi | 76% | 2894 fps | 97.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,990 psi | 68% | 2851 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 58,769 psi | 90% | 2923 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 57,188 psi | 88% | 2995 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 58,552 psi | 90% | 3012 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 56,739 psi | 87% | 2986 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 96% | 58,653 psi | 90% | 3054 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 96% | 56,057 psi | 86% | 2969 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 55,361 psi | 85% | 3028 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 56,826 psi | 87% | 3061 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 56,797 psi | 87% | 2959 fps | 96% |
| Bofors RP15 | <<locked>> | 98% | 57,769 psi | 89% | 3041 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,445 psi | 79% | 2963 fps | 98.3% |
| Bofors RP5 | <<locked>> | 96% | 58,653 psi | 90% | 3054 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 58,668 psi | 90% | 2943 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,230 psi | 83% | 2982 fps | 99% |
| Hodgdon H414 | <<locked>> | 86% | 58,015 psi | 89% | 2992 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 57,130 psi | 88% | 2953 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 94% | 58,653 psi | 90% | 2999 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 57,522 psi | 88% | 2979 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 57,551 psi | 89% | 2917 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,375 psi | 84% | 3097 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 84% | 54,795 psi | 84% | 2976 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,014 psi | 57% | 1844 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,753 psi | 87% | 2927 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,608 psi | 87% | 2910 fps | 99.9% |
| IMR 4831 | <<locked>> | 88% | 56,681 psi | 87% | 2933 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,811 psi | 86% | 2920 fps | 98.1% |
| IMR 7828 SSC | <<locked>> | 96% | 56,536 psi | 87% | 3035 fps | 98.7% |
| Lovex S065 | <<locked>> | 86% | 57,305 psi | 88% | 2910 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 55,477 psi | 85% | 2904 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 56,159 psi | 86% | 2923 fps | 100% |
| Norma 204 | <<locked>> | 88% | 57,856 psi | 89% | 2982 fps | 99.3% |
| Norma 217ᴾ | <<locked>> | 100% | 39,566 psi | 61% | 2772 fps | 97.3% |
| Norma MRP | <<locked>> | 94% | 58,668 psi | 90% | 3077 fps | 100% |
| Norma URP | <<locked>> | 88% | 58,465 psi | 90% | 2979 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 57,377 psi | 88% | 3061 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 88% | 57,319 psi | 88% | 2982 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 55,782 psi | 86% | 2992 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,898 psi | 58% | 1890 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 58,175 psi | 89% | 2995 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 56,550 psi | 87% | 2966 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 58,798 psi | 90% | 3051 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 55,201 psi | 85% | 3097 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,864 psi | 77% | 2972 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 82% | 56,594 psi | 87% | 2887 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 58,450 psi | 90% | 2969 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 92% | 56,260 psi | 87% | 2976 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 86% | 58,668 psi | 90% | 2943 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 57,305 psi | 88% | 2910 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 55,477 psi | 85% | 2904 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 57,928 psi | 89% | 2946 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 56,318 psi | 87% | 2759 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,637 psi | 87% | 2864 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,825 psi | 86% | 2969 fps | 99.3% |
| Somchem S355 | <<locked>> | 82% | 56,159 psi | 86% | 2881 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 56,275 psi | 87% | 2904 fps | 98% |
| Somchem S365 | <<locked>> | 88% | 55,216 psi | 85% | 2927 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,623 psi | 87% | 2946 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 57,421 psi | 88% | 2854 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,652 psi | 87% | 2917 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 56,144 psi | 86% | 2927 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 86% | 55,767 psi | 86% | 2920 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 58,436 psi | 90% | 2999 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 58,421 psi | 90% | 3071 fps | 98.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 58,407 psi | 90% | 3051 fps | 98.7% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 51,039 psi | 79% | 2976 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 56,231 psi | 87% | 2877 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 58,233 psi | 90% | 2999 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 58,001 psi | 89% | 3107 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 56,768 psi | 87% | 2946 fps | 99.3% |
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% | 34,360 psi | 53% | 2510 fps | 96.8% |
| Accurate 4350 | <<locked>> | 80% | 46,021 psi | 71% | 2769 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 46,514 psi | 72% | 2864 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 53,896 psi | 83% | 2848 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 38,334 psi | 59% | 2638 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 86% | 41,887 psi | 64% | 2746 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 96% | 43,033 psi | 66% | 2766 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 92% | 33,881 psi | 52% | 2598 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 55,245 psi | 85% | 2874 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,034 psi | 68% | 2776 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,952 psi | 78% | 2897 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,377 psi | 59% | 2631 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 84% | 39,291 psi | 60% | 2694 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,953 psi | 51% | 2536 fps | 99.4% |
| Alliant Reloder-25 | <<locked>> | 82% | 30,618 psi | 47% | 2497 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 36,056 psi | 55% | 2674 fps | 98.7% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,272 psi | 82% | 2897 fps | 95.1% |
| Bofors RP15 | <<locked>> | 86% | 38,943 psi | 60% | 2684 fps | 95.6% |
| Bofors RP30 | <<locked>> | 92% | 39,175 psi | 60% | 2720 fps | 95% |
| Bofors RP5 | <<locked>> | 84% | 39,291 psi | 60% | 2694 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 48,602 psi | 75% | 2772 fps | 98.9% |
| Hodgdon H1000 | <<locked>> | 92% | 41,365 psi | 64% | 2733 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 47,601 psi | 73% | 2818 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 80% | 50,241 psi | 77% | 2838 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 86% | 44,802 psi | 69% | 2753 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 86% | 43,947 psi | 68% | 2736 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,510 psi | 64% | 2661 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 36,376 psi | 56% | 2700 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 47,166 psi | 73% | 2841 fps | 98.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,760 psi | 43% | 1650 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,063 psi | 68% | 2703 fps | 98.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,024 psi | 77% | 2802 fps | 99.3% |
| IMR 4831 | <<locked>> | 80% | 43,874 psi | 67% | 2717 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 43,555 psi | 67% | 2694 fps | 95.2% |
| IMR 7828 SSC | 76.5 gr | 88% | 43,178 psi | 66% | 2785 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 47,616 psi | 73% | 2749 fps | 99.7% |
| Lovex S070 | <<locked>> | 80% | 45,861 psi | 71% | 2736 fps | 99% |
| Lovex S071 | <<locked>> | 82% | 31,618 psi | 49% | 2441 fps | 95.8% |
| Norma 204 | <<locked>> | 80% | 44,208 psi | 68% | 2743 fps | 97% |
| Norma 217 | <<locked>> | 96% | 34,621 psi | 53% | 2648 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 35,752 psi | 55% | 2638 fps | 96.1% |
| Norma URP | <<locked>> | 80% | 45,020 psi | 69% | 2756 fps | 99.9% |
| Ramshot Grand | <<locked>> | 88% | 43,018 psi | 66% | 2799 fps | 96.1% |
| Ramshot Hunter | <<locked>> | 80% | 44,005 psi | 68% | 2753 fps | 99.1% |
| Ramshot Magnum | <<locked>> | 86% | 35,679 psi | 55% | 2605 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,456 psi | 44% | 1690 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 54,157 psi | 83% | 2943 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,905 psi | 71% | 2789 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,092 psi | 68% | 2805 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 33,344 psi | 51% | 2612 fps | 95% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 46,383 psi | 71% | 2904 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 80% | 52,895 psi | 81% | 2835 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 42,351 psi | 65% | 2677 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 80% | 37,739 psi | 58% | 2618 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 48,602 psi | 75% | 2772 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,616 psi | 73% | 2749 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 80% | 45,861 psi | 71% | 2736 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 54,433 psi | 84% | 2894 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,837 psi | 81% | 2713 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,644 psi | 72% | 2700 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,405 psi | 58% | 2612 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 52,750 psi | 81% | 2831 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 46,166 psi | 71% | 2726 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 42,076 psi | 65% | 2713 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,377 psi | 59% | 2605 fps | 96.6% |
| Vihtavuori N150 | <<locked>> | 80% | 50,415 psi | 78% | 2753 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,514 psi | 72% | 2753 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 35,389 psi | 54% | 2530 fps | 95.1% |
| Vihtavuori N550 | <<locked>> | 80% | 45,890 psi | 71% | 2756 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 36,927 psi | 57% | 2615 fps | 99.3% |
| Vihtavuori N560 | 77.6 gr | 86% | 44,324 psi | 68% | 2818 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 92% | 44,353 psi | 68% | 2802 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 98% | 47,572 psi | 73% | 2910 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,672 psi | 70% | 2713 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,805 psi | 74% | 2822 fps | 99.2% |
| Winchester StaBALL HD | 71.5 gr | 80% | 29,341 psi | 45% | 2546 fps | 99.4% |
| Winchester Supreme 780 | <<locked>> | 82% | 37,521 psi | 58% | 2585 fps | 95.2% |
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 82 powders for .300 PRC loaded with the .308 | 180gr | Sellier & Bellot FMJ-BT. Winchester StaBALL HD delivers the highest muzzle velocity at 3,107 fps; across all powders the maximum-charge window runs from 1,844 fps to 3,107 fps. ADI AR 2217 gives the best case fill at 100 %, and 82 of the 82 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 1:12.5 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, IMR 7828 SSC, Vihtavuori N560 rank at the top here: for .300 PRC with the .308 | 180gr | Sellier & Bellot FMJ-BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-33, IMR 7977 Enduron, IMR 8133 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.