Load Specifications
Load data in caliber .300 PRC with .308 | 165gr | RWS Speed Tip Professional bullet and 82 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 and ADI AR 2213.
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% | 58,697 psi | 90% | 3015 fps | 99.4% |
| Accurate 3100 | <<locked>> | 96% | 55,158 psi | 85% | 3018 fps | 99.8% |
| Accurate 4064 | <<locked>> | 82% | 58,552 psi | 90% | 2989 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 56,608 psi | 87% | 3061 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 57,450 psi | 88% | 3166 fps | 97% |
| ADI AR 2208 | <<locked>> | 84% | 57,986 psi | 89% | 3025 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 57,479 psi | 88% | 3114 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 96% | 55,172 psi | 85% | 3110 fps | 97.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,944 psi | 63% | 2874 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,622 psi | 86% | 2995 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 57,319 psi | 88% | 3120 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 58,769 psi | 90% | 3136 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 56,811 psi | 87% | 3097 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 98% | 58,610 psi | 90% | 3166 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 98% | 55,738 psi | 86% | 3084 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,634 psi | 79% | 3081 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 56,478 psi | 87% | 3179 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 57,508 psi | 88% | 3150 fps | 98.9% |
| Bofors RP3 | <<locked>> | 82% | 56,826 psi | 87% | 3018 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,427 psi | 73% | 2999 fps | 96.5% |
| Bofors RP5 | <<locked>> | 98% | 58,610 psi | 90% | 3166 fps | 99.2% |
| Bofors RP7 | <<locked>> | 86% | 55,782 psi | 86% | 3005 fps | 99.2% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,821 psi | 78% | 3025 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 82% | 56,724 psi | 87% | 3031 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 58,479 psi | 90% | 3117 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 86% | 57,595 psi | 89% | 3074 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 94% | 55,056 psi | 85% | 3048 fps | 96.9% |
| Hodgdon H4831 SC | <<locked>> | 96% | 57,914 psi | 89% | 3094 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 57,725 psi | 89% | 3041 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,473 psi | 78% | 3130 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 86% | 55,100 psi | 85% | 3091 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,854 psi | 57% | 1923 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 57,406 psi | 88% | 3009 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 57,174 psi | 88% | 3045 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 86% | 57,305 psi | 88% | 3035 fps | 99.6% |
| IMR 4831 | <<locked>> | 90% | 56,826 psi | 87% | 3051 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 56,405 psi | 87% | 3035 fps | 97.3% |
| IMR 7828 SSC | <<locked>> | 98% | 56,652 psi | 87% | 3150 fps | 98% |
| Lovex S062 | <<locked>> | 82% | 57,885 psi | 89% | 3002 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 57,682 psi | 89% | 3031 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 55,912 psi | 86% | 3022 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,460 psi | 81% | 2976 fps | 99.7% |
| Norma 203B | <<locked>> | 82% | 58,682 psi | 90% | 3061 fps | 100% |
| Norma 204 | <<locked>> | 90% | 58,334 psi | 90% | 3104 fps | 98.9% |
| Norma MRP | <<locked>> | 96% | 58,682 psi | 90% | 3192 fps | 99.8% |
| Norma URP | <<locked>> | 90% | 58,740 psi | 90% | 3100 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 57,479 psi | 88% | 3173 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 90% | 57,580 psi | 89% | 3100 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 55,680 psi | 86% | 3100 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,681 psi | 58% | 1969 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 56,608 psi | 87% | 3018 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 58,305 psi | 90% | 3127 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 56,681 psi | 87% | 3084 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,882 psi | 84% | 3110 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 51,126 psi | 79% | 3130 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 84% | 56,884 psi | 88% | 3012 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 55,230 psi | 85% | 3022 fps | 97.6% |
| Rottweil R 905 | <<locked>> | 94% | 56,275 psi | 87% | 3087 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 86% | 55,782 psi | 86% | 3005 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 88% | 57,682 psi | 89% | 3031 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 57,885 psi | 89% | 3002 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 55,912 psi | 86% | 3022 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 58,523 psi | 90% | 3074 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 57,087 psi | 88% | 2887 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 57,305 psi | 88% | 2986 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 55,811 psi | 86% | 3081 fps | 98.8% |
| Somchem S355 | <<locked>> | 84% | 56,536 psi | 87% | 3005 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,869 psi | 87% | 3015 fps | 97.2% |
| Somchem S365 | <<locked>> | 90% | 55,085 psi | 85% | 3048 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 56,884 psi | 88% | 3058 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 86% | 58,059 psi | 89% | 2979 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 56,927 psi | 88% | 3038 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 56,391 psi | 87% | 3038 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 82% | 58,450 psi | 90% | 2976 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 56,202 psi | 86% | 3045 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 58,175 psi | 89% | 3114 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 58,537 psi | 90% | 3186 fps | 97.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 54,186 psi | 83% | 3094 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 56,550 psi | 87% | 2995 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 58,697 psi | 90% | 3120 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 57,043 psi | 88% | 3225 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 57,087 psi | 88% | 3058 fps | 98.8% |
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% | 54,984 psi | 85% | 2956 fps | 99% |
| Accurate 3100 | <<locked>> | 82% | 34,214 psi | 53% | 2602 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 54,998 psi | 85% | 2940 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 43,134 psi | 66% | 2825 fps | 99.4% |
| Accurate MAGPRO | <<locked>> | 92% | 49,850 psi | 77% | 3031 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 51,213 psi | 79% | 2917 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 41,133 psi | 63% | 2799 fps | 95.2% |
| ADI AR 2213 | 80.9 gr | 92% | 48,196 psi | 74% | 2979 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 96% | 35,955 psi | 55% | 2740 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,272 psi | 80% | 2943 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,205 psi | 63% | 2828 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,630 psi | 73% | 2959 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 41,031 psi | 63% | 2792 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 88% | 41,771 psi | 64% | 2851 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,603 psi | 47% | 2572 fps | 98% |
| Alliant Reloder-25 | <<locked>> | 86% | 32,648 psi | 50% | 2644 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,286 psi | 51% | 2700 fps | 96.8% |
| Bofors RP15 | <<locked>> | 90% | 41,379 psi | 64% | 2841 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 53,069 psi | 82% | 2959 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 44,367 psi | 68% | 2933 fps | 95.6% |
| Bofors RP5 | <<locked>> | 88% | 41,771 psi | 64% | 2851 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 46,224 psi | 71% | 2831 fps | 97.7% |
| Hodgdon H1000 | <<locked>> | 96% | 44,309 psi | 68% | 2890 fps | 95.7% |
| Hodgdon H380 | <<locked>> | 80% | 53,272 psi | 82% | 2979 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 44,817 psi | 69% | 2871 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 80% | 47,413 psi | 73% | 2890 fps | 97.4% |
| Hodgdon H4831 | <<locked>> | 90% | 48,095 psi | 74% | 2920 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 92% | 50,604 psi | 78% | 2969 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,928 psi | 60% | 2713 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 94% | 41,408 psi | 64% | 2927 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 44,019 psi | 68% | 2887 fps | 97.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,514 psi | 42% | 1716 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 53,896 psi | 83% | 2956 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,727 psi | 64% | 2756 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,471 psi | 73% | 2861 fps | 98.4% |
| IMR 4831 | <<locked>> | 80% | 41,046 psi | 63% | 2769 fps | 99.2% |
| IMR 4955 Enduron | <<locked>> | 88% | 46,702 psi | 72% | 2858 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 92% | 46,035 psi | 71% | 2946 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 54,404 psi | 84% | 2949 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 45,034 psi | 69% | 2808 fps | 98.9% |
| Lovex S070 | <<locked>> | 80% | 43,395 psi | 67% | 2792 fps | 97.8% |
| Lovex S071 | <<locked>> | 86% | 33,446 psi | 51% | 2582 fps | 95.4% |
| Norma 203B | <<locked>> | 80% | 55,143 psi | 85% | 3005 fps | 100% |
| Norma 204 | <<locked>> | 80% | 41,423 psi | 64% | 2785 fps | 95.1% |
| Norma MRP | 76.2 gr | 84% | 38,261 psi | 59% | 2799 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 42,380 psi | 65% | 2812 fps | 99.3% |
| Ramshot Grand | <<locked>> | 92% | 46,166 psi | 71% | 2959 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 41,176 psi | 63% | 2799 fps | 97.8% |
| Ramshot Magnum | <<locked>> | 90% | 38,334 psi | 59% | 2762 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,166 psi | 43% | 1762 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,852 psi | 81% | 2956 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,531 psi | 78% | 3012 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,931 psi | 66% | 2841 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,278 psi | 64% | 2851 fps | 98.9% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 38,261 psi | 59% | 2838 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 80% | 50,038 psi | 77% | 2904 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 45,455 psi | 70% | 2844 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 84% | 40,364 psi | 62% | 2779 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 46,224 psi | 71% | 2831 fps | 97.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,034 psi | 69% | 2808 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 54,404 psi | 84% | 2949 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 43,395 psi | 67% | 2792 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,256 psi | 79% | 2959 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,473 psi | 78% | 2792 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,150 psi | 68% | 2753 fps | 97.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 40,016 psi | 62% | 2772 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 49,893 psi | 77% | 2897 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 49,777 psi | 77% | 2894 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 39,204 psi | 60% | 2766 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 38,377 psi | 59% | 2703 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 47,790 psi | 74% | 2822 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,859 psi | 67% | 2812 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 88% | 40,466 psi | 62% | 2743 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 54,984 psi | 85% | 2923 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 43,250 psi | 67% | 2812 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 80% | 34,330 psi | 53% | 2654 fps | 98% |
| Vihtavuori N560 | 81.6 gr | 90% | 47,398 psi | 73% | 2986 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 96% | 47,181 psi | 73% | 2963 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,786 psi | 66% | 2769 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,817 psi | 69% | 2871 fps | 97.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,180 psi | 42% | 2556 fps | 97.4% |
| Winchester Supreme 780 | <<locked>> | 86% | 40,277 psi | 62% | 2743 fps | 95% |
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 88 powders for .300 PRC loaded with the .308 | 165gr | RWS Speed Tip Professional. Winchester StaBALL HD delivers the highest muzzle velocity at 3,225 fps; across all powders the maximum-charge window runs from 1,923 fps to 3,225 fps. ADI AR 2217 gives the best case fill at 100 %, and 88 of the 88 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 165.0 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. Norma MRP, Vihtavuori N560, ADI AR 2213 rank at the top here: for .300 PRC with the .308 | 165gr | RWS Speed Tip Professional they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, IMR 8133 Enduron, 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.