Load Specifications
Load data in caliber .300 PRC with .308 | 170gr | Norma Tipstrike bullet and 77 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 Accurate MAGPRO.
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% | 56,739 psi | 87% | 3005 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 58,421 psi | 90% | 3048 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 55,405 psi | 85% | 3097 fps | 97% |
| ADI AR 2208 | <<locked>> | 82% | 55,709 psi | 86% | 2953 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 55,259 psi | 85% | 3041 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 96% | 56,855 psi | 87% | 3104 fps | 98.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 47,500 psi | 73% | 2923 fps | 96.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,264 psi | 65% | 2874 fps | 98.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 57,159 psi | 88% | 2979 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 55,419 psi | 85% | 3051 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 56,594 psi | 87% | 3064 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 58,479 psi | 90% | 3087 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 56,695 psi | 87% | 3097 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 98% | 57,566 psi | 89% | 3071 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 53,374 psi | 82% | 3074 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 58,610 psi | 90% | 3166 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 55,637 psi | 86% | 3081 fps | 98.9% |
| Bofors RP3 | <<locked>> | 82% | 58,204 psi | 90% | 2995 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 49,197 psi | 76% | 2992 fps | 97.3% |
| Bofors RP5 | <<locked>> | 96% | 56,695 psi | 87% | 3097 fps | 99.1% |
| Bofors RP7 | <<locked>> | 86% | 57,014 psi | 88% | 2989 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 52,388 psi | 81% | 3018 fps | 98.2% |
| Hodgdon H380 | <<locked>> | 82% | 58,276 psi | 90% | 3018 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 56,289 psi | 87% | 3045 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 84% | 55,419 psi | 85% | 2999 fps | 99% |
| Hodgdon H4831 | <<locked>> | 94% | 56,695 psi | 87% | 3038 fps | 97.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 55,608 psi | 86% | 3022 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 55,535 psi | 85% | 2969 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 52,170 psi | 80% | 3130 fps | 99.3% |
| Hodgdon Superformance | <<locked>> | 86% | 56,826 psi | 87% | 3081 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,898 psi | 57% | 1896 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 58,653 psi | 90% | 2986 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 58,668 psi | 90% | 3031 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 58,508 psi | 90% | 3015 fps | 99.8% |
| IMR 4831 | <<locked>> | 90% | 58,523 psi | 90% | 3038 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 57,899 psi | 89% | 3025 fps | 97.9% |
| IMR 7828 SSC | <<locked>> | 98% | 58,450 psi | 90% | 3140 fps | 98.5% |
| Lovex S065 | <<locked>> | 86% | 55,666 psi | 86% | 2959 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 57,203 psi | 88% | 3005 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 54,143 psi | 83% | 2966 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 56,086 psi | 86% | 3031 fps | 98.8% |
| Norma MRP | <<locked>> | 94% | 56,550 psi | 87% | 3123 fps | 99.8% |
| Norma URP | <<locked>> | 88% | 56,536 psi | 87% | 3028 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 55,201 psi | 85% | 3097 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 88% | 55,506 psi | 85% | 3031 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 57,682 psi | 89% | 3094 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,753 psi | 58% | 1942 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 57,870 psi | 89% | 3002 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 55,912 psi | 86% | 3048 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 58,262 psi | 90% | 3068 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 56,666 psi | 87% | 3100 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 52,924 psi | 81% | 3130 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 84% | 58,494 psi | 90% | 2995 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 56,550 psi | 87% | 3009 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 94% | 58,030 psi | 89% | 3077 fps | 99.3% |
| Rottweil R 907 | <<locked>> | 86% | 57,014 psi | 88% | 2989 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 55,666 psi | 86% | 2959 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 57,203 psi | 88% | 3005 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 56,333 psi | 87% | 3002 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 58,305 psi | 90% | 2864 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 58,552 psi | 90% | 2966 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 57,566 psi | 89% | 3074 fps | 99.2% |
| Somchem S355 | <<locked>> | 84% | 58,073 psi | 89% | 2989 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 58,378 psi | 90% | 3002 fps | 97.8% |
| Somchem S365 | <<locked>> | 90% | 56,942 psi | 88% | 3031 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 58,537 psi | 90% | 3048 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 55,767 psi | 86% | 2910 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 58,552 psi | 90% | 3022 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 58,015 psi | 89% | 3025 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 88% | 57,566 psi | 89% | 3025 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 56,333 psi | 87% | 3048 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 56,434 psi | 87% | 3114 fps | 97.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 55,999 psi | 86% | 3084 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 58,175 psi | 89% | 2979 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 56,507 psi | 87% | 3048 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 98% | 55,187 psi | 85% | 3153 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 58,769 psi | 90% | 3045 fps | 99.2% |
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% | 33,040 psi | 51% | 2539 fps | 95.7% |
| Accurate 4350 | <<locked>> | 80% | 44,411 psi | 68% | 2812 fps | 99.7% |
| Accurate MAGPRO | 83.6 gr | 90% | 48,095 psi | 74% | 2963 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 52,344 psi | 81% | 2900 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 39,595 psi | 61% | 2730 fps | 95% |
| ADI AR 2213 | <<locked>> | 90% | 46,354 psi | 71% | 2907 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 98% | 44,469 psi | 68% | 2858 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 94% | 34,751 psi | 53% | 2677 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 53,519 psi | 82% | 2927 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,409 psi | 65% | 2818 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 49,081 psi | 76% | 2946 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 39,566 psi | 61% | 2726 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 86% | 40,335 psi | 62% | 2782 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,720 psi | 49% | 2569 fps | 98.6% |
| Alliant Reloder-25 | <<locked>> | 84% | 31,560 psi | 49% | 2585 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 80% | 34,432 psi | 53% | 2697 fps | 97.6% |
| Bofors RP15 | <<locked>> | 88% | 39,972 psi | 61% | 2772 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 54,447 psi | 84% | 2940 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 42,888 psi | 66% | 2867 fps | 95.5% |
| Bofors RP5 | <<locked>> | 86% | 40,335 psi | 62% | 2782 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 47,297 psi | 73% | 2818 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 94% | 42,598 psi | 66% | 2822 fps | 95.6% |
| Hodgdon H380 | <<locked>> | 80% | 54,520 psi | 84% | 2959 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 46,035 psi | 71% | 2861 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 80% | 48,588 psi | 75% | 2877 fps | 97.9% |
| Hodgdon H4831 | <<locked>> | 88% | 46,282 psi | 71% | 2851 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 90% | 48,646 psi | 75% | 2897 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,089 psi | 62% | 2700 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 40,001 psi | 62% | 2861 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 45,498 psi | 70% | 2881 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,586 psi | 42% | 1696 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 55,100 psi | 85% | 2936 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,772 psi | 66% | 2743 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,559 psi | 75% | 2848 fps | 98.8% |
| IMR 4831 | <<locked>> | 80% | 42,250 psi | 65% | 2756 fps | 99.5% |
| IMR 4955 Enduron | <<locked>> | 88% | 47,805 psi | 74% | 2848 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 90% | 44,338 psi | 68% | 2877 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 46,267 psi | 71% | 2799 fps | 99.3% |
| Lovex S070 | <<locked>> | 80% | 44,498 psi | 68% | 2779 fps | 98.3% |
| Lovex S071 | <<locked>> | 84% | 32,387 psi | 50% | 2520 fps | 95.4% |
| Norma 204 | <<locked>> | 80% | 42,583 psi | 66% | 2776 fps | 95.9% |
| Norma MRP | 74.7 gr | 82% | 36,811 psi | 57% | 2730 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 43,555 psi | 67% | 2799 fps | 99.6% |
| Ramshot Grand | <<locked>> | 90% | 44,280 psi | 68% | 2890 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 42,366 psi | 65% | 2789 fps | 98.4% |
| Ramshot Magnum | <<locked>> | 88% | 36,796 psi | 57% | 2690 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,253 psi | 43% | 1739 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 54,273 psi | 83% | 2943 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 52,083 psi | 80% | 2992 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,222 psi | 68% | 2831 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,467 psi | 65% | 2844 fps | 99.3% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 36,825 psi | 57% | 2769 fps | 96% |
| Rottweil R 903 | <<locked>> | 80% | 51,300 psi | 79% | 2887 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 43,743 psi | 67% | 2772 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 82% | 38,885 psi | 60% | 2710 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 47,297 psi | 73% | 2818 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,267 psi | 71% | 2799 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 80% | 44,498 psi | 68% | 2779 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 52,576 psi | 81% | 2943 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,576 psi | 79% | 2769 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,165 psi | 69% | 2740 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 41,176 psi | 63% | 2766 fps | 95.9% |
| Somchem S355 | <<locked>> | 80% | 51,300 psi | 79% | 2884 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 47,805 psi | 74% | 2822 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 40,480 psi | 62% | 2756 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,898 psi | 57% | 2635 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 80% | 48,994 psi | 75% | 2805 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,049 psi | 69% | 2799 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 39,001 psi | 60% | 2677 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 44,440 psi | 68% | 2799 fps | 99.6% |
| Vihtavuori N555 | <<locked>> | 80% | 35,505 psi | 55% | 2651 fps | 98.6% |
| Vihtavuori N560 | 80.2 gr | 88% | 45,759 psi | 70% | 2913 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 94% | 45,585 psi | 70% | 2894 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,106 psi | 68% | 2759 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,224 psi | 71% | 2864 fps | 98.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 28,065 psi | 43% | 2562 fps | 98.4% |
| Winchester Supreme 780 | <<locked>> | 86% | 41,437 psi | 64% | 2736 fps | 95.8% |
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 83 powders for .300 PRC loaded with the .308 | 170gr | Norma Tipstrike. Alliant Reloder-26 delivers the highest muzzle velocity at 3,166 fps; across all powders the maximum-charge window runs from 1,896 fps to 3,166 fps. ADI AR 2217 gives the best case fill at 100 %, and 83 of the 83 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 1:12.5 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. Norma MRP, Vihtavuori N560, Accurate MAGPRO rank at the top here: for .300 PRC with the .308 | 170gr | Norma Tipstrike they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, IMR 8133 Enduron, 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.