Load Specifications
Load data in caliber .300 PRC with .308 | 170gr | Sako Blade bullet and 87 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Accurate MAGPRO 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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 57,232 psi | 88% | 2953 fps | 99.4% |
| Accurate 3100 | <<locked>> | 98% | 57,014 psi | 88% | 3012 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 56,724 psi | 87% | 2927 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 58,697 psi | 90% | 3054 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 55,709 psi | 86% | 3100 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 84% | 56,681 psi | 87% | 2966 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,869 psi | 86% | 3048 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 98% | 57,551 psi | 89% | 3110 fps | 98.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,407 psi | 61% | 2802 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 57,957 psi | 89% | 2992 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 57,885 psi | 89% | 3012 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,898 psi | 86% | 3058 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 57,334 psi | 88% | 3077 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 55,419 psi | 85% | 3038 fps | 98.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 57,043 psi | 88% | 3104 fps | 99.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 57,783 psi | 89% | 3074 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,937 psi | 77% | 3015 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 58,798 psi | 90% | 3173 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,709 psi | 86% | 3077 fps | 98.8% |
| Bofors RP3 | <<locked>> | 82% | 55,114 psi | 85% | 2953 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,847 psi | 71% | 2930 fps | 96.3% |
| Bofors RP5 | <<locked>> | 98% | 57,043 psi | 88% | 3104 fps | 99.1% |
| Bofors RP7 | <<locked>> | 88% | 57,885 psi | 89% | 3002 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,313 psi | 76% | 2956 fps | 97.4% |
| Hodgdon H380 | <<locked>> | 82% | 55,274 psi | 85% | 2969 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 56,855 psi | 87% | 3051 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 86% | 56,231 psi | 87% | 3009 fps | 99% |
| Hodgdon H4831 | <<locked>> | 96% | 57,566 psi | 89% | 3048 fps | 97.5% |
| Hodgdon H4831 SC | <<locked>> | 96% | 56,405 psi | 87% | 3031 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 56,043 psi | 86% | 2976 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,849 psi | 75% | 3064 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 88% | 57,696 psi | 89% | 3094 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,622 psi | 56% | 1883 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,173 psi | 86% | 2949 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 58,552 psi | 90% | 2989 fps | 99.8% |
| IMR 4350 | <<locked>> | 90% | 55,898 psi | 86% | 2982 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,970 psi | 86% | 2972 fps | 99.6% |
| IMR 4831 | <<locked>> | 90% | 55,303 psi | 85% | 2989 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 58,566 psi | 90% | 3031 fps | 97.9% |
| IMR 7828 SSC | <<locked>> | 98% | 54,897 psi | 84% | 3081 fps | 97.8% |
| Lovex S062 | <<locked>> | 82% | 56,275 psi | 87% | 2936 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 56,333 psi | 87% | 2969 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 57,972 psi | 89% | 3018 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,618 psi | 78% | 2910 fps | 99.6% |
| Norma 203B | <<locked>> | 82% | 57,174 psi | 88% | 2995 fps | 100% |
| Norma 204 | <<locked>> | 90% | 56,942 psi | 88% | 3041 fps | 98.8% |
| Norma MRP | <<locked>> | 96% | 56,797 psi | 87% | 3127 fps | 99.7% |
| Norma URP | <<locked>> | 90% | 57,232 psi | 88% | 3038 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 58,363 psi | 90% | 3025 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,753 psi | 86% | 3104 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 90% | 56,115 psi | 86% | 3041 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,867 psi | 83% | 3035 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,420 psi | 58% | 1929 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,129 psi | 85% | 2956 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,724 psi | 87% | 3064 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 58,755 psi | 90% | 3077 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 57,421 psi | 88% | 3110 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,269 psi | 76% | 3061 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 82% | 58,088 psi | 89% | 2949 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 55,216 psi | 85% | 2949 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 57,479 psi | 88% | 3022 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 96% | 58,639 psi | 90% | 3084 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 88% | 57,885 psi | 89% | 3002 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,333 psi | 87% | 2969 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 56,275 psi | 87% | 2936 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 57,972 psi | 89% | 3018 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 57,014 psi | 88% | 3012 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,898 psi | 86% | 2831 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,854 psi | 86% | 2923 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 58,160 psi | 89% | 3081 fps | 99.2% |
| Somchem S355 | <<locked>> | 86% | 58,668 psi | 90% | 2995 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,477 psi | 85% | 2953 fps | 97.1% |
| Somchem S365 | <<locked>> | 92% | 57,334 psi | 88% | 3038 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,100 psi | 85% | 2992 fps | 99.3% |
| Vihtavuori N135 | <<locked>> | 82% | 58,755 psi | 90% | 2900 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 56,463 psi | 87% | 2917 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,477 psi | 85% | 2976 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 58,624 psi | 90% | 3031 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 82% | 57,087 psi | 88% | 2913 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 58,378 psi | 90% | 3035 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 56,376 psi | 87% | 3048 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 56,811 psi | 87% | 3120 fps | 97.7% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,344 psi | 81% | 3022 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,216 psi | 85% | 2936 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 57,072 psi | 88% | 3054 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,781 psi | 84% | 3153 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,347 psi | 85% | 2989 fps | 98.7% |
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 2700 | <<locked>> | 80% | 53,664 psi | 83% | 2897 fps | 99% |
| Accurate 3100 | <<locked>> | 82% | 32,503 psi | 50% | 2530 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 53,301 psi | 82% | 2877 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,278 psi | 64% | 2753 fps | 99.3% |
| Accurate MAGPRO | 82.8 gr | 92% | 48,182 psi | 74% | 2963 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 49,995 psi | 77% | 2858 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 42,699 psi | 66% | 2802 fps | 95.9% |
| ADI AR 2213 | <<locked>> | 92% | 46,659 psi | 72% | 2910 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 98% | 36,898 psi | 57% | 2736 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,879 psi | 78% | 2881 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 54,259 psi | 83% | 2956 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,103 psi | 62% | 2769 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,006 psi | 71% | 2894 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,755 psi | 61% | 2733 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 88% | 40,350 psi | 62% | 2785 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,399 psi | 45% | 2507 fps | 97.7% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,285 psi | 48% | 2579 fps | 95.2% |
| Alliant Reloder-26 | 72.8 gr | 80% | 31,705 psi | 49% | 2625 fps | 96.3% |
| Bofors RP15 | <<locked>> | 90% | 39,943 psi | 61% | 2776 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 51,547 psi | 79% | 2897 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 42,728 psi | 66% | 2864 fps | 95.3% |
| Bofors RP5 | <<locked>> | 88% | 40,350 psi | 62% | 2785 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 44,904 psi | 69% | 2772 fps | 97.6% |
| Hodgdon H1000 | <<locked>> | 96% | 42,888 psi | 66% | 2825 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 51,706 psi | 80% | 2913 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,381 psi | 67% | 2805 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 80% | 46,253 psi | 71% | 2831 fps | 97.3% |
| Hodgdon H4831 | <<locked>> | 90% | 46,688 psi | 72% | 2858 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 92% | 49,023 psi | 75% | 2904 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,536 psi | 58% | 2651 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 94% | 39,871 psi | 61% | 2854 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 42,641 psi | 66% | 2822 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,340 psi | 42% | 1683 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,605 psi | 81% | 2894 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 54,940 psi | 85% | 2933 fps | 99.5% |
| IMR 4350 | <<locked>> | 80% | 40,538 psi | 62% | 2697 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,354 psi | 71% | 2802 fps | 98.3% |
| IMR 4831 | <<locked>> | 80% | 39,610 psi | 61% | 2703 fps | 99% |
| IMR 4955 Enduron | <<locked>> | 90% | 48,472 psi | 75% | 2858 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 92% | 44,628 psi | 69% | 2884 fps | 95.2% |
| Lovex S062 | <<locked>> | 80% | 52,939 psi | 81% | 2887 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,816 psi | 67% | 2749 fps | 98.9% |
| Lovex S070 | <<locked>> | 80% | 42,003 psi | 65% | 2730 fps | 97.6% |
| Lovex S071 | <<locked>> | 88% | 34,040 psi | 52% | 2569 fps | 95.9% |
| Norma 203B | <<locked>> | 80% | 53,592 psi | 82% | 2940 fps | 100% |
| Norma 204 | <<locked>> | 82% | 43,149 psi | 66% | 2789 fps | 95.9% |
| Norma MRP | <<locked>> | 84% | 36,782 psi | 57% | 2730 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 41,002 psi | 63% | 2749 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 80% | 54,505 psi | 84% | 2969 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 44,599 psi | 69% | 2894 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 39,813 psi | 61% | 2736 fps | 97.6% |
| Ramshot Magnum | <<locked>> | 92% | 39,610 psi | 61% | 2759 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,963 psi | 43% | 1726 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,706 psi | 80% | 2900 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,863 psi | 75% | 2946 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,408 psi | 64% | 2776 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,813 psi | 61% | 2785 fps | 98.7% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,666 psi | 56% | 2762 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 80% | 54,607 psi | 84% | 2897 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 48,443 psi | 75% | 2841 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 44,251 psi | 68% | 2782 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 86% | 41,756 psi | 64% | 2779 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 80% | 44,904 psi | 69% | 2772 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,816 psi | 67% | 2749 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 52,939 psi | 81% | 2887 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,003 psi | 65% | 2730 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,864 psi | 77% | 2900 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,153 psi | 76% | 2733 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,830 psi | 66% | 2690 fps | 97.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 41,394 psi | 64% | 2772 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 48,588 psi | 75% | 2841 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 48,443 psi | 75% | 2831 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 37,710 psi | 58% | 2703 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,898 psi | 57% | 2638 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 80% | 55,172 psi | 85% | 2854 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 46,456 psi | 71% | 2762 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,395 psi | 65% | 2746 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 88% | 39,059 psi | 60% | 2680 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 53,592 psi | 82% | 2864 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,800 psi | 64% | 2746 fps | 99.1% |
| Vihtavuori N555 | <<locked>> | 80% | 32,764 psi | 50% | 2585 fps | 97.7% |
| Vihtavuori N560 | 79.5 gr | 90% | 45,919 psi | 71% | 2917 fps | 95% |
| Vihtavuori N565 | <<locked>> | 96% | 45,469 psi | 70% | 2894 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,582 psi | 64% | 2713 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,569 psi | 67% | 2812 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,831 psi | 40% | 2477 fps | 96.7% |
| Winchester Supreme 780 | <<locked>> | 88% | 41,698 psi | 64% | 2743 fps | 95.7% |
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 92 powders for .300 PRC loaded with the .308 | 170gr | Sako Blade. Alliant Reloder-26 delivers the highest muzzle velocity at 3,173 fps; across all powders the maximum-charge window runs from 1,883 fps to 3,173 fps. ADI AR 2217 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.308" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-23 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, Accurate MAGPRO, Alliant Reloder-26 rank at the top here: for .300 PRC with the .308 | 170gr | Sako Blade they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Baschieri & Pellagri 109, Norma 217, ReloadSwiss RS 80 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.