Load Specifications
Load data in caliber .300 PRC with .308 | 168gr | Frontier PH HPFB bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Norma MRP and Ramshot Grand.
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>> | 96% | 56,014 psi | 86% | 3012 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 57,667 psi | 89% | 3054 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 58,566 psi | 90% | 3163 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 84% | 58,610 psi | 90% | 3012 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 58,479 psi | 90% | 3107 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 96% | 56,159 psi | 86% | 3107 fps | 98% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 46,920 psi | 72% | 2923 fps | 96.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,684 psi | 64% | 2874 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 56,492 psi | 87% | 2986 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 58,392 psi | 90% | 3110 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 55,898 psi | 86% | 3071 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 57,798 psi | 89% | 3091 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 96% | 55,956 psi | 86% | 3100 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 98% | 56,797 psi | 87% | 3074 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 52,663 psi | 81% | 3074 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 57,508 psi | 88% | 3169 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 58,552 psi | 90% | 3140 fps | 99.2% |
| Bofors RP3 | <<locked>> | 82% | 57,551 psi | 89% | 3002 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 48,472 psi | 75% | 2995 fps | 97% |
| Bofors RP5 | <<locked>> | 96% | 55,956 psi | 86% | 3100 fps | 99% |
| Bofors RP7 | <<locked>> | 86% | 56,434 psi | 87% | 2995 fps | 99.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 51,750 psi | 80% | 3022 fps | 98% |
| Hodgdon H380 | <<locked>> | 82% | 57,667 psi | 89% | 3025 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 55,637 psi | 86% | 3048 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 86% | 58,276 psi | 90% | 3061 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 94% | 56,028 psi | 86% | 3041 fps | 97.3% |
| Hodgdon H4831 SC | <<locked>> | 94% | 54,955 psi | 85% | 3022 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 58,552 psi | 90% | 3025 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,474 psi | 79% | 3133 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 86% | 56,115 psi | 86% | 3087 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,970 psi | 57% | 1909 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 58,247 psi | 90% | 2995 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 58,030 psi | 89% | 3035 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 57,914 psi | 89% | 3022 fps | 99.7% |
| IMR 4831 | <<locked>> | 90% | 57,841 psi | 89% | 3041 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 57,290 psi | 88% | 3028 fps | 97.7% |
| IMR 7828 SSC | <<locked>> | 98% | 57,653 psi | 89% | 3143 fps | 98.3% |
| Lovex S062 | <<locked>> | 82% | 58,537 psi | 90% | 2986 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 58,537 psi | 90% | 3022 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 56,565 psi | 87% | 3012 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,432 psi | 82% | 2969 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 55,434 psi | 85% | 3031 fps | 98.6% |
| Norma MRP | <<locked>> | 94% | 55,782 psi | 86% | 3123 fps | 99.7% |
| Norma URP | <<locked>> | 88% | 55,840 psi | 86% | 3031 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 58,639 psi | 90% | 3166 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 90% | 58,595 psi | 90% | 3094 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 56,840 psi | 87% | 3097 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,652 psi | 58% | 1952 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 57,290 psi | 88% | 3009 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 55,158 psi | 85% | 3058 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 57,522 psi | 88% | 3074 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 55,912 psi | 86% | 3104 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 52,156 psi | 80% | 3133 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 84% | 57,841 psi | 89% | 3002 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 55,912 psi | 86% | 3015 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 94% | 57,305 psi | 88% | 3081 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 86% | 56,434 psi | 87% | 2995 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 88% | 58,537 psi | 90% | 3022 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 58,537 psi | 90% | 2986 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 56,565 psi | 87% | 3012 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 55,666 psi | 86% | 3005 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 57,682 psi | 89% | 2871 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 57,943 psi | 89% | 2969 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 56,840 psi | 87% | 3077 fps | 99% |
| Somchem S355 | <<locked>> | 84% | 57,406 psi | 88% | 2995 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 57,740 psi | 89% | 3009 fps | 97.6% |
| Somchem S365 | <<locked>> | 90% | 56,159 psi | 86% | 3035 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 57,885 psi | 89% | 3054 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 86% | 58,711 psi | 90% | 2966 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 57,914 psi | 89% | 3028 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 57,334 psi | 88% | 3028 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 88% | 56,884 psi | 88% | 3028 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 55,564 psi | 85% | 3051 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 55,666 psi | 86% | 3117 fps | 97.5% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 55,259 psi | 85% | 3087 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 57,508 psi | 88% | 2986 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 55,840 psi | 86% | 3051 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 58,494 psi | 90% | 3215 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 58,073 psi | 89% | 3051 fps | 99.1% |
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% | 32,547 psi | 50% | 2539 fps | 95.3% |
| Accurate 4350 | <<locked>> | 80% | 43,787 psi | 67% | 2815 fps | 99.6% |
| Accurate MAGPRO | <<locked>> | 92% | 50,807 psi | 78% | 3025 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 51,982 psi | 80% | 2910 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 41,887 psi | 64% | 2799 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 90% | 45,774 psi | 70% | 2910 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 98% | 43,918 psi | 68% | 2858 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 96% | 36,651 psi | 56% | 2743 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 53,113 psi | 82% | 2933 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,003 psi | 65% | 2825 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,385 psi | 74% | 2949 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 41,800 psi | 64% | 2792 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 86% | 39,769 psi | 61% | 2785 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,256 psi | 48% | 2572 fps | 98.4% |
| Alliant Reloder-25 | <<locked>> | 84% | 31,125 psi | 48% | 2582 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,895 psi | 52% | 2697 fps | 97.3% |
| Bofors RP15 | <<locked>> | 90% | 42,221 psi | 65% | 2838 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 53,998 psi | 83% | 2949 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 42,235 psi | 65% | 2867 fps | 95.1% |
| Bofors RP5 | <<locked>> | 86% | 39,769 psi | 61% | 2785 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 46,760 psi | 72% | 2822 fps | 98% |
| Hodgdon H1000 | <<locked>> | 94% | 42,061 psi | 65% | 2822 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 53,940 psi | 83% | 2966 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 45,484 psi | 70% | 2861 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 80% | 48,182 psi | 74% | 2884 fps | 97.7% |
| Hodgdon H4831 | <<locked>> | 90% | 48,979 psi | 75% | 2917 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 90% | 48,022 psi | 74% | 2897 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,537 psi | 61% | 2703 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 39,450 psi | 61% | 2858 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 44,904 psi | 69% | 2884 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,644 psi | 43% | 1706 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 54,708 psi | 84% | 2946 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,250 psi | 65% | 2746 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,196 psi | 74% | 2854 fps | 98.7% |
| IMR 4831 | <<locked>> | 80% | 41,843 psi | 64% | 2762 fps | 99.4% |
| IMR 4955 Enduron | <<locked>> | 88% | 47,427 psi | 73% | 2851 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 92% | 46,920 psi | 72% | 2946 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 55,042 psi | 85% | 2936 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 45,730 psi | 70% | 2802 fps | 99.2% |
| Lovex S070 | <<locked>> | 80% | 43,947 psi | 68% | 2782 fps | 98.1% |
| Lovex S071 | <<locked>> | 84% | 31,923 psi | 49% | 2523 fps | 95% |
| Norma 204 | <<locked>> | 80% | 42,192 psi | 65% | 2779 fps | 95.6% |
| Norma MRP | 74.6 gr | 82% | 36,419 psi | 56% | 2730 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 42,975 psi | 66% | 2802 fps | 99.4% |
| Ramshot Grand | 81.1 gr | 90% | 43,656 psi | 67% | 2887 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 41,959 psi | 65% | 2792 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 90% | 39,117 psi | 60% | 2762 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,152 psi | 43% | 1745 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 53,664 psi | 83% | 2949 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 51,329 psi | 79% | 2999 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,627 psi | 67% | 2831 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,047 psi | 65% | 2848 fps | 99.2% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 36,318 psi | 56% | 2766 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 50,705 psi | 78% | 2894 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 46,253 psi | 71% | 2838 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 84% | 41,002 psi | 63% | 2772 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 46,760 psi | 72% | 2822 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,730 psi | 70% | 2802 fps | 99.2% |
| Shooters World Precision | <<locked>> | 80% | 55,042 psi | 85% | 2936 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 43,947 psi | 68% | 2782 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 52,127 psi | 80% | 2953 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,039 psi | 79% | 2779 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,802 psi | 69% | 2746 fps | 98.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 40,640 psi | 63% | 2766 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 50,691 psi | 78% | 2890 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 47,253 psi | 73% | 2825 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 39,856 psi | 61% | 2759 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,535 psi | 56% | 2641 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 48,428 psi | 75% | 2812 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,498 psi | 68% | 2802 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 38,479 psi | 59% | 2677 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 43,888 psi | 68% | 2802 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 80% | 34,969 psi | 54% | 2648 fps | 98.3% |
| Vihtavuori N560 | 81.8 gr | 90% | 48,327 psi | 74% | 2979 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 94% | 44,933 psi | 69% | 2894 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,526 psi | 67% | 2762 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,614 psi | 70% | 2867 fps | 98.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,760 psi | 43% | 2562 fps | 98.1% |
| Winchester Supreme 780 | <<locked>> | 86% | 40,872 psi | 63% | 2736 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 85 powders for .300 PRC loaded with the .308 | 168gr | Frontier PH HPFB. Winchester StaBALL HD delivers the highest muzzle velocity at 3,215 fps; across all powders the maximum-charge window runs from 1,909 fps to 3,215 fps. ADI AR 2217 gives the best case fill at 100 %, and 85 of the 85 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 168.0 gr projectile in 0.308" calls for a 1:12.0 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. Vihtavuori N560, Norma MRP, Ramshot Grand rank at the top here: for .300 PRC with the .308 | 168gr | Frontier PH HPFB they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, IMR 8133 Enduron, ReloadSwiss RS 80, 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.