Load Specifications
Load data in caliber .300 PRC with .308 | 200gr | Lapua Subsonic 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 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>> | 92% | 56,014 psi | 86% | 2785 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 57,261 psi | 88% | 2812 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 58,595 psi | 90% | 2943 fps | 99% |
| ADI AR 2209 | <<locked>> | 90% | 57,899 psi | 89% | 2871 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 92% | 55,738 psi | 86% | 2881 fps | 99.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 53,679 psi | 83% | 2848 fps | 99.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 48,153 psi | 74% | 2808 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 86% | 58,001 psi | 89% | 2861 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 57,334 psi | 88% | 2861 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 92% | 55,956 psi | 86% | 2874 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 94% | 57,406 psi | 88% | 2841 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 56,869 psi | 87% | 2907 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 58,088 psi | 89% | 2933 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 56,985 psi | 88% | 2844 fps | 97.3% |
| Bofors RP15 | <<locked>> | 96% | 58,813 psi | 90% | 2917 fps | 99.9% |
| Bofors RP30ᴾ | <<locked>> | 100% | 56,594 psi | 87% | 2917 fps | 99.7% |
| Bofors RP5 | <<locked>> | 92% | 55,956 psi | 86% | 2874 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 58,798 psi | 90% | 2808 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 55,230 psi | 85% | 2871 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 84% | 58,552 psi | 90% | 2864 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 57,305 psi | 88% | 2822 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 90% | 55,506 psi | 85% | 2822 fps | 98.8% |
| Hodgdon H4831 SC | <<locked>> | 92% | 58,131 psi | 89% | 2858 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 58,233 psi | 90% | 2785 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 55,927 psi | 86% | 2986 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 55,288 psi | 85% | 2844 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,333 psi | 57% | 1759 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 57,145 psi | 88% | 2799 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 56,637 psi | 87% | 2776 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 57,406 psi | 88% | 2802 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 56,260 psi | 87% | 2802 fps | 99% |
| IMR 7828 SSC | <<locked>> | 94% | 57,609 psi | 89% | 2920 fps | 99.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 43,801 psi | 67% | 2717 fps | 97.6% |
| Lovex S065 | <<locked>> | 84% | 57,508 psi | 88% | 2776 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 55,825 psi | 86% | 2776 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 57,276 psi | 88% | 2802 fps | 100% |
| Norma 204 | <<locked>> | 86% | 58,276 psi | 90% | 2858 fps | 99.8% |
| Norma 217ᴾ | <<locked>> | 100% | 44,019 psi | 68% | 2743 fps | 99.3% |
| Norma MRP | <<locked>> | 90% | 55,970 psi | 86% | 2897 fps | 100% |
| Norma URP | <<locked>> | 84% | 55,492 psi | 85% | 2792 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 58,784 psi | 90% | 2946 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 86% | 57,957 psi | 89% | 2854 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 57,058 psi | 88% | 2877 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,290 psi | 59% | 1801 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 57,174 psi | 88% | 2835 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 55,637 psi | 86% | 2861 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 56,507 psi | 87% | 2982 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 55,637 psi | 86% | 2936 fps | 98.8% |
| Rottweil R 904 | <<locked>> | 90% | 58,711 psi | 90% | 2841 fps | 99.5% |
| Rottweil R 905 | <<locked>> | 90% | 56,927 psi | 88% | 2851 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 84% | 58,798 psi | 90% | 2808 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 57,508 psi | 88% | 2776 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 55,825 psi | 86% | 2776 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 56,550 psi | 87% | 2733 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 56,507 psi | 87% | 2848 fps | 99.8% |
| Somchem S361 | <<locked>> | 88% | 56,536 psi | 87% | 2782 fps | 98.9% |
| Somchem S365 | <<locked>> | 86% | 56,318 psi | 87% | 2795 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 57,522 psi | 88% | 2825 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 57,624 psi | 89% | 2717 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 57,174 psi | 88% | 2785 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 57,130 psi | 88% | 2808 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 56,188 psi | 86% | 2789 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 55,999 psi | 86% | 2822 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 55,666 psi | 86% | 2894 fps | 99% |
| Vihtavuori N565 | <<locked>> | 96% | 55,709 psi | 86% | 2877 fps | 99.1% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 56,507 psi | 87% | 2940 fps | 98.5% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 53,505 psi | 82% | 2930 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 56,550 psi | 87% | 2743 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 58,740 psi | 90% | 2867 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 56,057 psi | 86% | 2930 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 57,203 psi | 88% | 2818 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% | 37,550 psi | 58% | 2464 fps | 98.8% |
| Accurate 4350 | <<locked>> | 80% | 49,922 psi | 77% | 2703 fps | 100% |
| Accurate MAGPRO | <<locked>> | 82% | 41,321 psi | 64% | 2631 fps | 95.1% |
| ADI AR 2209 | <<locked>> | 80% | 41,466 psi | 64% | 2585 fps | 97.6% |
| ADI AR 2213 | <<locked>> | 82% | 39,697 psi | 61% | 2582 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 90% | 38,435 psi | 59% | 2552 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 86% | 30,530 psi | 47% | 2398 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 47,776 psi | 74% | 2707 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,524 psi | 64% | 2582 fps | 97.7% |
| Alliant Reloder-22 | <<locked>> | 80% | 37,521 psi | 58% | 2533 fps | 96.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 36,172 psi | 56% | 2490 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,270 psi | 48% | 2408 fps | 97.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 40,074 psi | 62% | 2635 fps | 99.9% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 47,268 psi | 73% | 2671 fps | 95% |
| Bofors RP15 | <<locked>> | 80% | 34,925 psi | 54% | 2467 fps | 95.4% |
| Bofors RP30 | <<locked>> | 88% | 37,768 psi | 58% | 2566 fps | 95.9% |
| Bofors RP5 | <<locked>> | 80% | 37,521 psi | 58% | 2533 fps | 96.6% |
| Bofors RP7 | <<locked>> | 80% | 51,880 psi | 80% | 2703 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 86% | 36,651 psi | 56% | 2513 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 51,372 psi | 79% | 2753 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 80% | 53,824 psi | 83% | 2769 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 80% | 39,537 psi | 61% | 2526 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 82% | 41,582 psi | 64% | 2572 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 45,121 psi | 69% | 2592 fps | 100% |
| Hodgdon Retumbo | 71 gr | 82% | 32,663 psi | 50% | 2487 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 51,401 psi | 79% | 2785 fps | 99.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,007 psi | 43% | 1568 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,239 psi | 73% | 2641 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 53,243 psi | 82% | 2726 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 47,398 psi | 73% | 2651 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 41,075 psi | 63% | 2526 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 82% | 38,261 psi | 59% | 2559 fps | 95.4% |
| IMR 8133 Enduron | <<locked>> | 96% | 38,261 psi | 59% | 2598 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 50,836 psi | 78% | 2677 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 49,298 psi | 76% | 2671 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 32,474 psi | 50% | 2349 fps | 97.4% |
| Norma 204 | <<locked>> | 80% | 47,718 psi | 73% | 2687 fps | 98.8% |
| Norma 217 | <<locked>> | 90% | 31,401 psi | 48% | 2448 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 39,349 psi | 61% | 2598 fps | 98.4% |
| Norma URP | <<locked>> | 80% | 48,791 psi | 75% | 2690 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 38,014 psi | 58% | 2569 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 47,616 psi | 73% | 2690 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 80% | 31,531 psi | 49% | 2388 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,761 psi | 44% | 1611 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 49,922 psi | 77% | 2726 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 48,124 psi | 74% | 2746 fps | 100% |
| ReloadSwiss RS 76 | 76 gr | 82% | 31,705 psi | 49% | 2461 fps | 96% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 41,220 psi | 63% | 2674 fps | 95.3% |
| Rottweil R 904 | <<locked>> | 80% | 42,699 psi | 66% | 2566 fps | 96.9% |
| Rottweil R 905 | <<locked>> | 80% | 41,031 psi | 63% | 2572 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 80% | 51,880 psi | 80% | 2703 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,836 psi | 78% | 2677 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 49,298 psi | 76% | 2671 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,792 psi | 77% | 2631 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 40,698 psi | 63% | 2569 fps | 97.6% |
| Somchem S361 | <<locked>> | 80% | 43,453 psi | 67% | 2559 fps | 96.3% |
| Somchem S365 | <<locked>> | 80% | 45,948 psi | 71% | 2644 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 41,597 psi | 64% | 2556 fps | 98.5% |
| Vihtavuori N150 | <<locked>> | 80% | 54,085 psi | 83% | 2671 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 50,140 psi | 77% | 2680 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 36,071 psi | 55% | 2431 fps | 96.7% |
| Vihtavuori N550 | <<locked>> | 80% | 49,429 psi | 76% | 2684 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 40,553 psi | 62% | 2566 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 39,363 psi | 61% | 2589 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 86% | 39,813 psi | 61% | 2585 fps | 95.7% |
| Vihtavuori N568 | <<locked>> | 92% | 42,525 psi | 65% | 2690 fps | 95.1% |
| Vihtavuori N570 | <<locked>> | 98% | 49,821 psi | 77% | 2864 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 49,153 psi | 76% | 2638 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 51,590 psi | 79% | 2756 fps | 99.9% |
| Winchester StaBALL HD | 71.2 gr | 80% | 32,793 psi | 50% | 2523 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 38,014 psi | 58% | 2480 fps | 96.7% |
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 .308 | 200gr | Lapua Subsonic. Hodgdon Retumbo delivers the highest muzzle velocity at 2,986 fps; across all powders the maximum-charge window runs from 1,759 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 0.308" calls for a 1:11.5 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 | 200gr | Lapua Subsonic they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2218, Alliant Reloder-50, IMR 7977 Enduron 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.