Load Specifications
Load data in caliber .300 PRC with .308 | 170gr | Prvi Partizan FSP bullet and 81 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Norma MRP and Alliant Reloder-26.
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% | 55,724 psi | 86% | 2989 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 57,203 psi | 88% | 3031 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 57,217 psi | 88% | 3140 fps | 98.4% |
| Accurate MAGPRO | <<locked>> | 96% | 58,233 psi | 90% | 3140 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 84% | 58,566 psi | 90% | 2992 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 57,986 psi | 89% | 3081 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 96% | 55,709 psi | 86% | 3081 fps | 97.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 46,586 psi | 72% | 2900 fps | 96.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,408 psi | 64% | 2851 fps | 97.8% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 58,247 psi | 90% | 3077 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 56,188 psi | 86% | 2963 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 57,914 psi | 89% | 3084 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 55,434 psi | 85% | 3045 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 57,479 psi | 88% | 3068 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 96% | 55,506 psi | 85% | 3077 fps | 98.9% |
| Alliant Reloder-23 | <<locked>> | 98% | 56,536 psi | 87% | 3054 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 52,272 psi | 80% | 3054 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 57,043 psi | 88% | 3146 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 58,131 psi | 89% | 3117 fps | 99.2% |
| Bofors RP3 | <<locked>> | 82% | 57,261 psi | 88% | 2979 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 48,095 psi | 74% | 2972 fps | 97% |
| Bofors RP5 | <<locked>> | 96% | 55,506 psi | 85% | 3077 fps | 98.9% |
| Bofors RP7 | <<locked>> | 86% | 56,173 psi | 86% | 2972 fps | 99.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 51,445 psi | 79% | 2999 fps | 97.9% |
| Hodgdon H380 | <<locked>> | 82% | 57,363 psi | 88% | 3002 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 55,216 psi | 85% | 3025 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 86% | 58,117 psi | 89% | 3038 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 94% | 55,811 psi | 86% | 3018 fps | 97.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 58,465 psi | 90% | 3064 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 58,349 psi | 90% | 3005 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,126 psi | 79% | 3107 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 86% | 55,608 psi | 86% | 3061 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,970 psi | 57% | 1893 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 57,885 psi | 89% | 2972 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 57,725 psi | 89% | 3012 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 57,711 psi | 89% | 2999 fps | 99.7% |
| IMR 4831 | <<locked>> | 90% | 57,435 psi | 88% | 3018 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 56,797 psi | 87% | 3002 fps | 97.6% |
| IMR 7828 SSC | <<locked>> | 98% | 57,276 psi | 88% | 3117 fps | 98.3% |
| Lovex S062 | <<locked>> | 82% | 58,204 psi | 90% | 2963 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 58,334 psi | 90% | 2999 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 56,391 psi | 87% | 2989 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,171 psi | 82% | 2946 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 55,100 psi | 85% | 3009 fps | 98.6% |
| Norma MRP | <<locked>> | 94% | 55,303 psi | 85% | 3100 fps | 99.7% |
| Norma URP | <<locked>> | 88% | 55,622 psi | 86% | 3012 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 57,986 psi | 89% | 3140 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 90% | 58,305 psi | 90% | 3074 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 56,318 psi | 87% | 3071 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,652 psi | 58% | 1936 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 57,043 psi | 88% | 2986 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 54,868 psi | 84% | 3035 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 57,159 psi | 88% | 3051 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 55,419 psi | 85% | 3077 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 51,721 psi | 80% | 3107 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 84% | 57,551 psi | 89% | 2979 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 55,593 psi | 86% | 2989 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 94% | 56,985 psi | 88% | 3058 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 86% | 56,173 psi | 86% | 2972 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 88% | 58,334 psi | 90% | 2999 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 58,204 psi | 90% | 2963 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 56,391 psi | 87% | 2989 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 55,448 psi | 85% | 2986 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 57,595 psi | 89% | 2851 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 57,798 psi | 89% | 2949 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 56,565 psi | 87% | 3051 fps | 99% |
| Somchem S355 | <<locked>> | 84% | 57,159 psi | 88% | 2972 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 57,377 psi | 88% | 2982 fps | 97.5% |
| Somchem S365 | <<locked>> | 90% | 55,767 psi | 86% | 3015 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 57,377 psi | 88% | 3028 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 86% | 58,508 psi | 90% | 2943 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 57,479 psi | 88% | 3005 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 56,971 psi | 88% | 3005 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 88% | 56,797 psi | 87% | 3009 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 55,230 psi | 85% | 3028 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 55,245 psi | 85% | 3091 fps | 97.5% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 54,897 psi | 84% | 3068 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 57,232 psi | 88% | 2963 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 55,419 psi | 85% | 3028 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 57,870 psi | 89% | 3192 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 57,667 psi | 89% | 3025 fps | 99% |
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% | 32,314 psi | 50% | 2520 fps | 95.3% |
| Accurate 4350 | <<locked>> | 80% | 43,468 psi | 67% | 2792 fps | 99.6% |
| Accurate High Country | <<locked>> | 86% | 43,149 psi | 66% | 2871 fps | 95% |
| Accurate MAGPRO | 84 gr | 92% | 50,430 psi | 78% | 3005 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 51,634 psi | 79% | 2884 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 41,669 psi | 64% | 2776 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 90% | 45,513 psi | 70% | 2887 fps | 95.4% |
| ADI AR 2217 | <<locked>> | 98% | 43,584 psi | 67% | 2835 fps | 95% |
| ADI AR 2225 | <<locked>> | 96% | 36,332 psi | 56% | 2720 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 42,003 psi | 65% | 2779 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,765 psi | 81% | 2910 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,669 psi | 64% | 2799 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,109 psi | 74% | 2930 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 41,582 psi | 64% | 2769 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 86% | 39,552 psi | 61% | 2762 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,009 psi | 48% | 2549 fps | 98.4% |
| Alliant Reloder-25 | <<locked>> | 84% | 30,951 psi | 48% | 2562 fps | 95.1% |
| Alliant Reloder-26 | 73.9 gr | 80% | 33,707 psi | 52% | 2680 fps | 97.3% |
| Bofors RP15 | <<locked>> | 90% | 41,901 psi | 64% | 2815 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 53,664 psi | 83% | 2927 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 42,003 psi | 65% | 2848 fps | 95.2% |
| Bofors RP5 | <<locked>> | 86% | 39,552 psi | 61% | 2762 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 46,644 psi | 72% | 2802 fps | 98.1% |
| Hodgdon H1000 | <<locked>> | 94% | 41,872 psi | 64% | 2802 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 53,621 psi | 82% | 2943 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 45,208 psi | 70% | 2841 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 80% | 47,921 psi | 74% | 2864 fps | 97.7% |
| Hodgdon H4831 | <<locked>> | 90% | 48,689 psi | 75% | 2897 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 90% | 47,732 psi | 73% | 2877 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,349 psi | 61% | 2687 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 39,218 psi | 60% | 2835 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 44,570 psi | 69% | 2858 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,673 psi | 43% | 1693 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 54,346 psi | 84% | 2920 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,163 psi | 65% | 2726 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,906 psi | 74% | 2828 fps | 98.6% |
| IMR 4831 | <<locked>> | 80% | 41,524 psi | 64% | 2740 fps | 99.4% |
| IMR 4955 Enduron | <<locked>> | 88% | 47,123 psi | 72% | 2831 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 92% | 46,659 psi | 72% | 2923 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 54,868 psi | 84% | 2913 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 45,440 psi | 70% | 2776 fps | 99.2% |
| Lovex S070 | <<locked>> | 80% | 43,845 psi | 67% | 2766 fps | 98.1% |
| Lovex S071 | <<locked>> | 84% | 31,778 psi | 49% | 2507 fps | 95% |
| Norma 204 | <<locked>> | 80% | 41,945 psi | 65% | 2759 fps | 95.6% |
| Norma MRP | 73.5 gr | 82% | 36,085 psi | 56% | 2707 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 42,859 psi | 66% | 2785 fps | 99.5% |
| Ramshot Grand | <<locked>> | 90% | 43,424 psi | 67% | 2867 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 41,713 psi | 64% | 2772 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 90% | 38,725 psi | 60% | 2736 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,181 psi | 43% | 1729 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 53,432 psi | 82% | 2927 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 51,024 psi | 78% | 2976 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,395 psi | 67% | 2812 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,669 psi | 64% | 2825 fps | 99.1% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 35,998 psi | 55% | 2743 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 50,546 psi | 78% | 2871 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 46,021 psi | 71% | 2815 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 84% | 40,770 psi | 63% | 2753 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 46,644 psi | 72% | 2802 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,440 psi | 70% | 2776 fps | 99.2% |
| Shooters World Precision | <<locked>> | 80% | 54,868 psi | 84% | 2913 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 43,845 psi | 67% | 2766 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,851 psi | 80% | 2927 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,821 psi | 78% | 2756 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,556 psi | 69% | 2723 fps | 98.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 40,408 psi | 62% | 2746 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 50,343 psi | 77% | 2867 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 47,007 psi | 72% | 2805 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 39,682 psi | 61% | 2740 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,289 psi | 56% | 2618 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 48,269 psi | 74% | 2792 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,179 psi | 68% | 2779 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 38,305 psi | 59% | 2657 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 43,613 psi | 67% | 2779 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 80% | 34,809 psi | 54% | 2631 fps | 98.4% |
| Vihtavuori N560 | <<locked>> | 90% | 48,080 psi | 74% | 2959 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 94% | 44,686 psi | 69% | 2874 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,352 psi | 67% | 2743 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,382 psi | 70% | 2844 fps | 98.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,586 psi | 42% | 2539 fps | 98% |
| Winchester Supreme 780 | <<locked>> | 86% | 40,727 psi | 63% | 2717 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 81 powders for .300 PRC loaded with the .308 | 170gr | Prvi Partizan FSP. Winchester StaBALL HD delivers the highest muzzle velocity at 3,192 fps; across all powders the maximum-charge window runs from 1,893 fps to 3,192 fps. ADI AR 2217 gives the best case fill at 100 %, and 81 of the 81 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 170.0 gr projectile in 0.308" calls for a 1:16.0 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. Accurate MAGPRO, Norma MRP, Alliant Reloder-26 rank at the top here: for .300 PRC with the .308 | 170gr | Prvi Partizan FSP they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.