Load Specifications
Load data in caliber .300 PRC with .308 | 220gr | Lapua ScenarL bullet and 73 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 Winchester StaBALL HD.
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% | 55,579 psi | 86% | 2654 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 56,550 psi | 87% | 2671 fps | 100% |
| Accurate High Country | <<locked>> | 88% | 57,392 psi | 88% | 2805 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 90% | 58,146 psi | 89% | 2808 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 88% | 57,145 psi | 88% | 2736 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 55,332 psi | 85% | 2749 fps | 99.7% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 57,188 psi | 88% | 2779 fps | 99.9% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 49,516 psi | 76% | 2753 fps | 96.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 51,416 psi | 79% | 2743 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 57,319 psi | 88% | 2730 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 57,551 psi | 89% | 2720 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 56,666 psi | 87% | 2726 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 55,724 psi | 86% | 2746 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 57,174 psi | 88% | 2707 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 57,029 psi | 88% | 2776 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 57,885 psi | 89% | 2795 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 54,056 psi | 83% | 2805 fps | 97.7% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 55,927 psi | 86% | 2710 fps | 98% |
| Bofors RP15 | <<locked>> | 94% | 58,363 psi | 90% | 2782 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 56,681 psi | 87% | 2789 fps | 99.9% |
| Bofors RP5 | <<locked>> | 90% | 55,724 psi | 86% | 2746 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 57,841 psi | 89% | 2667 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 54,897 psi | 84% | 2743 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 57,899 psi | 89% | 2723 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 58,639 psi | 90% | 2743 fps | 99.6% |
| Hodgdon H4831 SC | <<locked>> | 90% | 57,508 psi | 88% | 2726 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 57,740 psi | 89% | 2648 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 55,767 psi | 86% | 2854 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 58,581 psi | 90% | 2762 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,637 psi | 58% | 1677 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 56,318 psi | 87% | 2661 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 56,768 psi | 87% | 2664 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 55,419 psi | 85% | 2667 fps | 99.4% |
| IMR 7828 SSC | <<locked>> | 92% | 57,406 psi | 88% | 2789 fps | 99.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 47,021 psi | 72% | 2661 fps | 99% |
| Lovex S065 | <<locked>> | 82% | 56,666 psi | 87% | 2635 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 58,523 psi | 90% | 2687 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 57,130 psi | 88% | 2674 fps | 100% |
| Norma 204 | <<locked>> | 84% | 57,464 psi | 88% | 2720 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 47,747 psi | 73% | 2684 fps | 100% |
| Norma MRP | <<locked>> | 88% | 55,622 psi | 86% | 2759 fps | 100% |
| Norma URP | <<locked>> | 84% | 58,378 psi | 90% | 2700 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 58,421 psi | 90% | 2808 fps | 100% |
| Ramshot Hunter | <<locked>> | 84% | 57,290 psi | 88% | 2713 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 56,594 psi | 87% | 2743 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,479 psi | 59% | 1716 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 56,594 psi | 87% | 2694 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 54,984 psi | 85% | 2720 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 56,550 psi | 87% | 2851 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 55,680 psi | 86% | 2815 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 88% | 58,044 psi | 89% | 2707 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 88% | 56,521 psi | 87% | 2717 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 57,841 psi | 89% | 2667 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 56,666 psi | 87% | 2635 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 58,523 psi | 90% | 2687 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 55,477 psi | 85% | 2595 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 56,115 psi | 86% | 2713 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 55,709 psi | 86% | 2651 fps | 99.3% |
| Somchem S365 | <<locked>> | 84% | 55,869 psi | 86% | 2657 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 56,710 psi | 87% | 2687 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 56,376 psi | 87% | 2644 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 56,507 psi | 87% | 2674 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 55,201 psi | 85% | 2690 fps | 96.2% |
| Vihtavuori N550 | <<locked>> | 82% | 55,521 psi | 85% | 2651 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 55,782 psi | 86% | 2684 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 55,230 psi | 85% | 2762 fps | 99.5% |
| Vihtavuori N565 | <<locked>> | 94% | 55,608 psi | 86% | 2753 fps | 99.6% |
| Vihtavuori N568 | <<locked>> | 98% | 56,420 psi | 87% | 2815 fps | 99.1% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 57,638 psi | 89% | 2874 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 55,448 psi | 85% | 2598 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 58,117 psi | 89% | 2726 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 56,521 psi | 87% | 2795 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 56,681 psi | 87% | 2687 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% | 40,001 psi | 62% | 2405 fps | 99.7% |
| Accurate 4350 | <<locked>> | 80% | 52,910 psi | 81% | 2618 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 43,497 psi | 67% | 2569 fps | 98.1% |
| Accurate MAGPRO | <<locked>> | 80% | 41,002 psi | 63% | 2513 fps | 96.2% |
| ADI AR 2209 | <<locked>> | 80% | 43,918 psi | 68% | 2520 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 80% | 39,276 psi | 60% | 2461 fps | 96.8% |
| ADI AR 2217 | <<locked>> | 86% | 35,795 psi | 55% | 2388 fps | 96% |
| ADI AR 2218 | <<locked>> | 98% | 46,093 psi | 71% | 2684 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 82% | 28,485 psi | 44% | 2244 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 44,367 psi | 68% | 2520 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 80% | 50,546 psi | 78% | 2621 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 43,947 psi | 68% | 2513 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 39,842 psi | 61% | 2470 fps | 98.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 38,653 psi | 59% | 2421 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 33,344 psi | 51% | 2359 fps | 99.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 43,192 psi | 66% | 2572 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 46,702 psi | 72% | 2680 fps | 95.9% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 43,743 psi | 67% | 2497 fps | 95.1% |
| Bofors RP15 | <<locked>> | 80% | 37,072 psi | 57% | 2411 fps | 97.3% |
| Bofors RP30 | <<locked>> | 82% | 33,083 psi | 51% | 2346 fps | 95.1% |
| Bofors RP5 | <<locked>> | 80% | 39,842 psi | 61% | 2470 fps | 98.2% |
| Bofors RP7 | <<locked>> | 80% | 54,288 psi | 84% | 2618 fps | 100% |
| Hodgdon H1000 | <<locked>> | 82% | 33,953 psi | 52% | 2346 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 54,085 psi | 83% | 2671 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 41,945 psi | 65% | 2467 fps | 97% |
| Hodgdon H4831 SC | <<locked>> | 80% | 41,133 psi | 63% | 2451 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 47,674 psi | 73% | 2510 fps | 100% |
| Hodgdon Retumbo | 67.9 gr | 80% | 32,532 psi | 50% | 2385 fps | 96.6% |
| Hodgdon Superformance | <<locked>> | 80% | 54,433 psi | 84% | 2707 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,253 psi | 43% | 1496 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 49,647 psi | 76% | 2559 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 49,864 psi | 77% | 2566 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,207 psi | 66% | 2461 fps | 97.5% |
| IMR 7828 SSC | <<locked>> | 80% | 38,072 psi | 59% | 2444 fps | 96.5% |
| IMR 8133 Enduron | <<locked>> | 90% | 33,779 psi | 52% | 2385 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 53,229 psi | 82% | 2589 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 51,590 psi | 79% | 2585 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 34,519 psi | 53% | 2290 fps | 98.8% |
| Norma 204 | <<locked>> | 80% | 50,227 psi | 77% | 2608 fps | 99.6% |
| Norma 217 | <<locked>> | 86% | 29,588 psi | 46% | 2297 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 42,047 psi | 65% | 2536 fps | 99.5% |
| Norma URP | <<locked>> | 80% | 51,256 psi | 79% | 2602 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 37,710 psi | 58% | 2451 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 80% | 50,227 psi | 77% | 2612 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 33,736 psi | 52% | 2339 fps | 97.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,906 psi | 44% | 1532 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 52,823 psi | 81% | 2641 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 51,227 psi | 79% | 2664 fps | 100% |
| ReloadSwiss RS 76 | 72.7 gr | 80% | 31,546 psi | 49% | 2359 fps | 97.3% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 38,189 psi | 59% | 2500 fps | 95.4% |
| Rottweil R 904 | <<locked>> | 80% | 44,962 psi | 69% | 2497 fps | 98.3% |
| Rottweil R 905 | <<locked>> | 80% | 43,511 psi | 67% | 2503 fps | 99% |
| Rottweil R 907 | <<locked>> | 80% | 54,288 psi | 84% | 2618 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 53,229 psi | 82% | 2589 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 51,590 psi | 79% | 2585 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 52,011 psi | 80% | 2543 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 43,163 psi | 66% | 2500 fps | 98.9% |
| Somchem S361 | <<locked>> | 80% | 45,759 psi | 70% | 2490 fps | 97.8% |
| Somchem S365 | <<locked>> | 80% | 48,878 psi | 75% | 2562 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 43,874 psi | 67% | 2484 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 52,823 psi | 81% | 2595 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 38,276 psi | 59% | 2372 fps | 98.3% |
| Vihtavuori N170 | <<locked>> | 94% | 51,750 psi | 80% | 2638 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 52,141 psi | 80% | 2602 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 43,163 psi | 66% | 2493 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 41,887 psi | 64% | 2530 fps | 97.1% |
| Vihtavuori N565 | <<locked>> | 82% | 37,202 psi | 57% | 2418 fps | 95.9% |
| Vihtavuori N568 | <<locked>> | 88% | 39,755 psi | 61% | 2520 fps | 95.4% |
| Vihtavuori N570 | <<locked>> | 94% | 46,514 psi | 72% | 2687 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 51,837 psi | 80% | 2552 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 54,302 psi | 84% | 2674 fps | 100% |
| Winchester StaBALL HD | 69.8 gr | 80% | 35,882 psi | 55% | 2467 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 40,248 psi | 62% | 2418 fps | 98.2% |
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 73 powders for .300 PRC loaded with the .308 | 220gr | Lapua ScenarL. Vihtavuori N570 delivers the highest muzzle velocity at 2,874 fps; across all powders the maximum-charge window runs from 1,677 fps to 2,874 fps. ADI AR 2217 gives the best case fill at 100 %, and 73 of the 73 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 1:11.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2218, ADI AR 2225 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, Winchester StaBALL HD rank at the top here: for .300 PRC with the .308 | 220gr | Lapua ScenarL 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.