Load Specifications
Load data in caliber .300 PRC with .308 | 220gr | Rhino Solid Shank bullet and 71 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and ReloadSwiss RS 80.
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>> | 90% | 55,767 psi | 86% | 2654 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 56,521 psi | 87% | 2671 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 58,305 psi | 90% | 2812 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 88% | 57,334 psi | 88% | 2736 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 55,288 psi | 85% | 2746 fps | 99.7% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 57,363 psi | 88% | 2779 fps | 99.9% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 49,661 psi | 76% | 2753 fps | 96.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 51,561 psi | 79% | 2743 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 57,783 psi | 89% | 2720 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 56,840 psi | 87% | 2726 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 55,666 psi | 86% | 2743 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 57,334 psi | 88% | 2707 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 57,217 psi | 88% | 2779 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 58,044 psi | 89% | 2795 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 54,404 psi | 84% | 2808 fps | 97.7% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 56,043 psi | 86% | 2713 fps | 98.1% |
| Bofors RP15 | <<locked>> | 94% | 58,537 psi | 90% | 2782 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 56,840 psi | 87% | 2789 fps | 99.9% |
| Bofors RP5 | <<locked>> | 90% | 55,666 psi | 86% | 2743 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 58,015 psi | 89% | 2667 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 55,042 psi | 85% | 2746 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 58,044 psi | 89% | 2726 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 58,581 psi | 90% | 2740 fps | 99.6% |
| Hodgdon H4831 SC | <<locked>> | 90% | 57,450 psi | 88% | 2723 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 57,914 psi | 89% | 2648 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 55,941 psi | 86% | 2858 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 58,769 psi | 90% | 2762 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,507 psi | 58% | 1673 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 56,463 psi | 87% | 2664 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 56,927 psi | 88% | 2664 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 55,564 psi | 85% | 2667 fps | 99.4% |
| IMR 7828 SSC | <<locked>> | 92% | 57,595 psi | 89% | 2789 fps | 99.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 47,166 psi | 73% | 2661 fps | 99.1% |
| Lovex S065 | <<locked>> | 82% | 56,623 psi | 87% | 2635 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 58,668 psi | 90% | 2687 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 57,261 psi | 88% | 2674 fps | 100% |
| Norma 204 | <<locked>> | 84% | 57,609 psi | 89% | 2720 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 47,906 psi | 74% | 2687 fps | 100% |
| Norma MRP | <<locked>> | 88% | 55,796 psi | 86% | 2762 fps | 100% |
| Norma URP | <<locked>> | 84% | 58,566 psi | 90% | 2703 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 58,610 psi | 90% | 2812 fps | 100% |
| Ramshot Hunter | <<locked>> | 84% | 57,435 psi | 88% | 2713 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 56,811 psi | 87% | 2743 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,551 psi | 59% | 1716 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 56,782 psi | 87% | 2697 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 55,187 psi | 85% | 2720 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 56,695 psi | 87% | 2851 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 55,825 psi | 86% | 2815 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 88% | 58,175 psi | 89% | 2707 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 88% | 56,695 psi | 87% | 2720 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 58,015 psi | 89% | 2667 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 56,623 psi | 87% | 2635 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 58,668 psi | 90% | 2687 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 55,637 psi | 86% | 2595 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 56,304 psi | 87% | 2717 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 55,854 psi | 86% | 2651 fps | 99.3% |
| Somchem S365 | <<locked>> | 84% | 56,072 psi | 86% | 2657 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 56,884 psi | 88% | 2690 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 56,318 psi | 87% | 2641 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 56,652 psi | 87% | 2677 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 55,317 psi | 85% | 2694 fps | 96.2% |
| Vihtavuori N550 | <<locked>> | 82% | 55,724 psi | 86% | 2651 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 55,970 psi | 86% | 2687 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 55,419 psi | 85% | 2762 fps | 99.5% |
| Vihtavuori N565 | <<locked>> | 94% | 55,796 psi | 86% | 2753 fps | 99.6% |
| Vihtavuori N568 | <<locked>> | 98% | 56,797 psi | 87% | 2818 fps | 99.2% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 57,769 psi | 89% | 2877 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 55,622 psi | 86% | 2602 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 58,044 psi | 89% | 2726 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 56,739 psi | 87% | 2795 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 56,855 psi | 87% | 2690 fps | 100% |
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% | 39,987 psi | 62% | 2402 fps | 99.7% |
| Accurate 4350 | <<locked>> | 80% | 52,895 psi | 81% | 2618 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 41,162 psi | 63% | 2513 fps | 96.3% |
| ADI AR 2209 | <<locked>> | 80% | 44,063 psi | 68% | 2523 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 80% | 39,407 psi | 61% | 2464 fps | 96.9% |
| ADI AR 2217 | <<locked>> | 86% | 35,781 psi | 55% | 2385 fps | 95.9% |
| ADI AR 2218 | <<locked>> | 98% | 46,238 psi | 71% | 2684 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 82% | 28,601 psi | 44% | 2244 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 50,763 psi | 78% | 2625 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 43,947 psi | 68% | 2513 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,030 psi | 62% | 2470 fps | 98.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 38,798 psi | 60% | 2421 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 33,475 psi | 51% | 2359 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 80% | 43,192 psi | 66% | 2572 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 46,862 psi | 72% | 2680 fps | 95.9% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 43,830 psi | 67% | 2497 fps | 95.1% |
| Bofors RP15 | <<locked>> | 80% | 37,246 psi | 57% | 2411 fps | 97.4% |
| Bofors RP30 | <<locked>> | 82% | 33,098 psi | 51% | 2346 fps | 95.1% |
| Bofors RP5 | <<locked>> | 80% | 40,030 psi | 62% | 2470 fps | 98.2% |
| Bofors RP7 | <<locked>> | 80% | 54,462 psi | 84% | 2618 fps | 100% |
| Hodgdon H1000 | <<locked>> | 82% | 34,084 psi | 52% | 2349 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 54,244 psi | 83% | 2671 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 41,930 psi | 65% | 2464 fps | 96.9% |
| Hodgdon H4831 SC | <<locked>> | 80% | 41,263 psi | 63% | 2451 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 47,688 psi | 73% | 2507 fps | 100% |
| Hodgdon Retumbo | 68.1 gr | 80% | 32,663 psi | 50% | 2385 fps | 96.6% |
| Hodgdon Superformance | <<locked>> | 80% | 54,621 psi | 84% | 2707 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,166 psi | 43% | 1493 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 49,821 psi | 77% | 2562 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 50,024 psi | 77% | 2566 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,337 psi | 67% | 2461 fps | 97.5% |
| IMR 7828 SSC | <<locked>> | 80% | 38,072 psi | 59% | 2444 fps | 96.5% |
| IMR 8133 Enduron | <<locked>> | 90% | 33,881 psi | 52% | 2385 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 53,388 psi | 82% | 2589 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 51,779 psi | 80% | 2589 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 34,664 psi | 53% | 2290 fps | 98.8% |
| Norma 204 | <<locked>> | 80% | 50,415 psi | 78% | 2612 fps | 99.6% |
| Norma 217 | <<locked>> | 86% | 29,747 psi | 46% | 2300 fps | 95.8% |
| Norma MRP | <<locked>> | 80% | 42,206 psi | 65% | 2536 fps | 99.5% |
| Norma URP | <<locked>> | 80% | 51,459 psi | 79% | 2605 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 37,884 psi | 58% | 2454 fps | 96.9% |
| Ramshot Hunter | <<locked>> | 80% | 50,386 psi | 78% | 2612 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 33,881 psi | 52% | 2343 fps | 97.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,979 psi | 45% | 1532 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 53,040 psi | 82% | 2644 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 51,387 psi | 79% | 2667 fps | 100% |
| ReloadSwiss RS 76 | 72.9 gr | 80% | 31,662 psi | 49% | 2362 fps | 97.3% |
| ReloadSwiss RS 80 | 80.8 gr | 88% | 38,319 psi | 59% | 2503 fps | 95.5% |
| Rottweil R 904 | <<locked>> | 80% | 45,121 psi | 69% | 2500 fps | 98.3% |
| Rottweil R 905 | <<locked>> | 80% | 43,511 psi | 67% | 2507 fps | 99% |
| Rottweil R 907 | <<locked>> | 80% | 54,462 psi | 84% | 2618 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 53,388 psi | 82% | 2589 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 51,779 psi | 80% | 2589 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 52,185 psi | 80% | 2546 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 43,163 psi | 66% | 2500 fps | 98.9% |
| Somchem S361 | <<locked>> | 80% | 45,890 psi | 71% | 2490 fps | 97.9% |
| Somchem S365 | <<locked>> | 80% | 49,081 psi | 76% | 2562 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 44,048 psi | 68% | 2487 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 52,823 psi | 81% | 2592 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 38,276 psi | 59% | 2369 fps | 98.2% |
| Vihtavuori N170 | <<locked>> | 94% | 51,880 psi | 80% | 2641 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 52,127 psi | 80% | 2598 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 43,163 psi | 66% | 2490 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 42,076 psi | 65% | 2530 fps | 97.2% |
| Vihtavuori N565 | <<locked>> | 82% | 37,231 psi | 57% | 2418 fps | 95.9% |
| Vihtavuori N568 | <<locked>> | 88% | 39,856 psi | 61% | 2520 fps | 95.4% |
| Vihtavuori N570 | <<locked>> | 94% | 46,659 psi | 72% | 2690 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 52,011 psi | 80% | 2552 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 54,462 psi | 84% | 2674 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 36,042 psi | 55% | 2470 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 40,408 psi | 62% | 2421 fps | 98.3% |
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 77 powders for .300 PRC loaded with the .308 | 220gr | Rhino Solid Shank. Vihtavuori N570 delivers the highest muzzle velocity at 2,877 fps; across all powders the maximum-charge window runs from 1,673 fps to 2,877 fps. Accurate 8700 gives the best case fill at 100 %, and 77 of the 77 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 8700, ADI AR 2217, ADI AR 2218 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. Hodgdon Retumbo, ReloadSwiss RS 76, ReloadSwiss RS 80 rank at the top here: for .300 PRC with the .308 | 220gr | Rhino Solid Shank they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 8700, IMR 7977 Enduron, Lovex D100 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.