Load Specifications
Load data in caliber .300 PRC with .310 | 200gr | Rhino Penetrator bullet and 76 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Vihtavuori N560 and Norma MRP.
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>> | 94% | 56,971 psi | 88% | 2789 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 58,247 psi | 90% | 2815 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 55,477 psi | 85% | 2884 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 82% | 58,653 psi | 90% | 2766 fps | 100% |
| ADI AR 2209 | <<locked>> | 90% | 55,245 psi | 85% | 2822 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 94% | 56,623 psi | 87% | 2881 fps | 99.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 50,792 psi | 78% | 2785 fps | 98.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 45,498 psi | 70% | 2753 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 55,419 psi | 85% | 2815 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 86% | 55,564 psi | 85% | 2818 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 56,434 psi | 87% | 2828 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 58,291 psi | 90% | 2861 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 94% | 56,710 psi | 87% | 2877 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 58,044 psi | 89% | 2841 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 57,464 psi | 88% | 2907 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 54,766 psi | 84% | 2881 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 58,044 psi | 89% | 2841 fps | 97.2% |
| Bofors RP15 | <<locked>> | 96% | 55,869 psi | 86% | 2864 fps | 99.7% |
| Bofors RP30ᴾ | <<locked>> | 100% | 53,301 psi | 82% | 2854 fps | 99.2% |
| Bofors RP5 | <<locked>> | 94% | 56,710 psi | 87% | 2877 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 56,652 psi | 87% | 2762 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 56,028 psi | 86% | 2871 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 84% | 56,144 psi | 86% | 2818 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 58,624 psi | 90% | 2828 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 92% | 56,637 psi | 87% | 2822 fps | 98.7% |
| Hodgdon H4831 SC | <<locked>> | 92% | 55,506 psi | 85% | 2805 fps | 98.6% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 55,709 psi | 86% | 2743 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 56,391 psi | 87% | 2986 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 56,579 psi | 87% | 2854 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,159 psi | 57% | 1736 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 58,407 psi | 90% | 2802 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 84% | 57,943 psi | 89% | 2782 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 58,508 psi | 90% | 2805 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 57,363 psi | 88% | 2802 fps | 98.9% |
| IMR 7828 SSC | <<locked>> | 96% | 58,523 psi | 90% | 2920 fps | 99.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 40,944 psi | 63% | 2651 fps | 96.5% |
| Lovex S065 | <<locked>> | 84% | 55,376 psi | 85% | 2733 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 56,884 psi | 88% | 2779 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 58,131 psi | 89% | 2805 fps | 100% |
| Norma 204 | <<locked>> | 86% | 55,680 psi | 86% | 2805 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 41,205 psi | 63% | 2680 fps | 98.7% |
| Norma MRP | <<locked>> | 92% | 56,623 psi | 87% | 2897 fps | 100% |
| Norma URP | <<locked>> | 86% | 56,420 psi | 87% | 2795 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 55,405 psi | 85% | 2884 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 55,288 psi | 85% | 2805 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 57,914 psi | 89% | 2877 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,116 psi | 59% | 1781 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 58,276 psi | 90% | 2838 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 56,550 psi | 87% | 2867 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 57,188 psi | 88% | 2982 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 51,924 psi | 80% | 2871 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 82% | 58,233 psi | 90% | 2759 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 56,449 psi | 87% | 2792 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 92% | 58,073 psi | 89% | 2854 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 84% | 56,652 psi | 87% | 2762 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 84% | 55,376 psi | 85% | 2733 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 56,884 psi | 88% | 2779 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 57,537 psi | 89% | 2625 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 58,073 psi | 89% | 2740 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 57,638 psi | 89% | 2851 fps | 99.8% |
| Somchem S355 | <<locked>> | 82% | 57,580 psi | 89% | 2749 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 57,812 psi | 89% | 2785 fps | 98.8% |
| Somchem S365 | <<locked>> | 88% | 57,232 psi | 88% | 2799 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 58,523 psi | 90% | 2828 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 55,376 psi | 85% | 2674 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 58,276 psi | 90% | 2789 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 57,914 psi | 89% | 2805 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 57,290 psi | 88% | 2792 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 56,782 psi | 87% | 2822 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 56,391 psi | 87% | 2897 fps | 98.9% |
| Vihtavuori N565 | <<locked>> | 98% | 56,434 psi | 87% | 2877 fps | 99.1% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 53,185 psi | 82% | 2877 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 57,769 psi | 89% | 2746 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 56,144 psi | 86% | 2818 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 56,217 psi | 86% | 2930 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 58,552 psi | 90% | 2828 fps | 99.8% |
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 3100 | <<locked>> | 80% | 35,694 psi | 55% | 2418 fps | 98.2% |
| Accurate 4350 | <<locked>> | 80% | 47,688 psi | 73% | 2657 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 41,887 psi | 64% | 2635 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 55,187 psi | 85% | 2717 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 39,610 psi | 61% | 2536 fps | 96.9% |
| ADI AR 2213 | <<locked>> | 84% | 40,437 psi | 62% | 2585 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 92% | 38,972 psi | 60% | 2552 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 88% | 30,806 psi | 47% | 2395 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,089 psi | 62% | 2543 fps | 97% |
| Alliant Reloder-16 | <<locked>> | 80% | 45,658 psi | 70% | 2664 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 52,707 psi | 81% | 2776 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 39,726 psi | 61% | 2536 fps | 96.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 35,563 psi | 55% | 2477 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,185 psi | 53% | 2441 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 29,747 psi | 46% | 2356 fps | 96.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 37,565 psi | 58% | 2579 fps | 99.6% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 51,430 psi | 79% | 2733 fps | 95.7% |
| Bofors RP15 | <<locked>> | 82% | 35,404 psi | 54% | 2474 fps | 95.4% |
| Bofors RP30 | <<locked>> | 90% | 38,043 psi | 59% | 2566 fps | 95.7% |
| Bofors RP5 | <<locked>> | 80% | 35,563 psi | 55% | 2477 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 50,111 psi | 77% | 2657 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 88% | 37,347 psi | 57% | 2516 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 80% | 49,182 psi | 76% | 2707 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 80% | 51,663 psi | 79% | 2720 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 82% | 40,379 psi | 62% | 2533 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 84% | 42,409 psi | 65% | 2575 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 42,975 psi | 66% | 2546 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 84% | 33,054 psi | 51% | 2490 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 48,791 psi | 75% | 2733 fps | 99.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,920 psi | 43% | 1552 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 45,397 psi | 70% | 2592 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 80% | 51,329 psi | 79% | 2680 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 45,150 psi | 69% | 2602 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 41,959 psi | 65% | 2533 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 84% | 39,015 psi | 60% | 2566 fps | 95.3% |
| IMR 8133 Enduron | <<locked>> | 98% | 38,363 psi | 59% | 2595 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 48,863 psi | 75% | 2631 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 47,355 psi | 73% | 2628 fps | 99.6% |
| Lovex S071 | <<locked>> | 80% | 30,792 psi | 47% | 2300 fps | 96.5% |
| Norma 204 | <<locked>> | 80% | 45,484 psi | 70% | 2631 fps | 98.1% |
| Norma 217 | <<locked>> | 92% | 31,589 psi | 49% | 2444 fps | 95.1% |
| Norma MRP | 68.7 gr | 80% | 37,144 psi | 57% | 2543 fps | 97.6% |
| Norma URP | <<locked>> | 80% | 46,673 psi | 72% | 2644 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 38,667 psi | 59% | 2572 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 45,368 psi | 70% | 2641 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 82% | 32,155 psi | 49% | 2395 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,529 psi | 44% | 1588 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 47,485 psi | 73% | 2677 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 45,745 psi | 70% | 2697 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 32,126 psi | 49% | 2464 fps | 95.8% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 41,524 psi | 64% | 2674 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 80% | 54,679 psi | 84% | 2710 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 40,901 psi | 63% | 2516 fps | 96.1% |
| Rottweil R 905 | <<locked>> | 80% | 39,102 psi | 60% | 2523 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 80% | 50,111 psi | 77% | 2657 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 48,863 psi | 75% | 2631 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 47,355 psi | 73% | 2628 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 54,273 psi | 83% | 2582 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 47,834 psi | 74% | 2585 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 38,769 psi | 60% | 2516 fps | 96.8% |
| Somchem S355 | <<locked>> | 80% | 54,157 psi | 83% | 2700 fps | 100% |
| Somchem S361 | <<locked>> | 80% | 41,669 psi | 64% | 2507 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 43,700 psi | 67% | 2602 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 39,624 psi | 61% | 2503 fps | 97.8% |
| Vihtavuori N150 | <<locked>> | 80% | 52,025 psi | 80% | 2631 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 48,080 psi | 74% | 2638 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 34,389 psi | 53% | 2382 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 47,340 psi | 73% | 2641 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 38,479 psi | 59% | 2516 fps | 99.9% |
| Vihtavuori N560 | 70.5 gr | 82% | 40,074 psi | 62% | 2595 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 88% | 40,190 psi | 62% | 2585 fps | 95.5% |
| Vihtavuori N568 | <<locked>> | 96% | 46,021 psi | 71% | 2749 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 47,079 psi | 72% | 2595 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 49,371 psi | 76% | 2710 fps | 99.7% |
| Winchester StaBALL HD | 68 gr | 80% | 30,443 psi | 47% | 2464 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,187 psi | 56% | 2431 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 76 powders for .300 PRC loaded with the .310 | 200gr | Rhino Penetrator. Hodgdon Retumbo delivers the highest muzzle velocity at 2,986 fps; across all powders the maximum-charge window runs from 1,736 fps to 2,986 fps. ADI AR 2217 gives the best case fill at 100 %, and 76 of the 76 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 200.0 gr projectile in 0.31" calls for a 1:10.0 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. Winchester StaBALL HD, Vihtavuori N560, Norma MRP rank at the top here: for .300 PRC with the .310 | 200gr | Rhino Penetrator 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.