Load Specifications
Load data in caliber .300 PRC with .308 | 220gr | Nosler Partition bullet and 69 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-25, Hodgdon Retumbo and ReloadSwiss RS 76.
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% | 56,739 psi | 87% | 2671 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 57,522 psi | 88% | 2684 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 55,361 psi | 85% | 2769 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 88% | 58,131 psi | 89% | 2753 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 56,275 psi | 87% | 2766 fps | 99.8% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 58,247 psi | 90% | 2795 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 50,647 psi | 78% | 2776 fps | 96.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 52,620 psi | 81% | 2759 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 58,508 psi | 90% | 2733 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 57,812 psi | 89% | 2743 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 56,637 psi | 87% | 2759 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 58,392 psi | 90% | 2723 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 58,276 psi | 90% | 2792 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 55,114 psi | 85% | 2759 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 55,666 psi | 86% | 2831 fps | 98% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 56,971 psi | 88% | 2730 fps | 98.3% |
| Bofors RP15 | <<locked>> | 92% | 55,825 psi | 86% | 2749 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 58,044 psi | 89% | 2808 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 56,637 psi | 87% | 2759 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 58,668 psi | 90% | 2684 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 55,970 psi | 86% | 2762 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 58,711 psi | 90% | 2736 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 55,796 psi | 86% | 2707 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 90% | 58,407 psi | 90% | 2743 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 58,610 psi | 90% | 2657 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 57,232 psi | 88% | 2874 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,681 psi | 58% | 1683 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 57,058 psi | 88% | 2674 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 57,595 psi | 89% | 2674 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 56,260 psi | 87% | 2684 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 92% | 58,407 psi | 90% | 2805 fps | 99.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 48,283 psi | 74% | 2680 fps | 99.2% |
| Lovex S065 | <<locked>> | 82% | 57,479 psi | 88% | 2651 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 55,767 psi | 86% | 2651 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 58,059 psi | 89% | 2687 fps | 100% |
| Norma 204 | <<locked>> | 84% | 58,392 psi | 90% | 2733 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 49,081 psi | 76% | 2707 fps | 100% |
| Norma MRP | <<locked>> | 88% | 56,623 psi | 87% | 2776 fps | 100% |
| Norma URP | <<locked>> | 82% | 55,608 psi | 86% | 2664 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 55,651 psi | 86% | 2772 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 84% | 58,276 psi | 90% | 2730 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 57,972 psi | 89% | 2762 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,522 psi | 59% | 1722 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 57,653 psi | 89% | 2710 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 56,043 psi | 86% | 2736 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 57,885 psi | 89% | 2867 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 57,159 psi | 88% | 2835 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 86% | 55,361 psi | 85% | 2671 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 88% | 57,522 psi | 88% | 2733 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 58,668 psi | 90% | 2684 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 57,479 psi | 88% | 2651 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 55,767 psi | 86% | 2651 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 56,217 psi | 86% | 2608 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 57,116 psi | 88% | 2730 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 56,695 psi | 87% | 2667 fps | 99.5% |
| Somchem S365 | <<locked>> | 84% | 56,811 psi | 87% | 2671 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 57,841 psi | 89% | 2707 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 57,217 psi | 88% | 2657 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 57,566 psi | 89% | 2690 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 56,304 psi | 87% | 2713 fps | 96.5% |
| Vihtavuori N550 | <<locked>> | 82% | 56,289 psi | 87% | 2664 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 56,855 psi | 87% | 2700 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 56,202 psi | 86% | 2779 fps | 99.6% |
| Vihtavuori N565 | <<locked>> | 94% | 56,739 psi | 87% | 2769 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 98% | 57,885 psi | 89% | 2838 fps | 99.3% |
| Vihtavuori N570 | <<locked>> | 98% | 54,839 psi | 84% | 2831 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 56,536 psi | 87% | 2615 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 57,972 psi | 89% | 2812 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 57,566 psi | 89% | 2703 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% | 40,741 psi | 63% | 2418 fps | 99.8% |
| Accurate 4350 | <<locked>> | 80% | 53,824 psi | 83% | 2635 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 41,930 psi | 65% | 2533 fps | 96.6% |
| ADI AR 2209 | <<locked>> | 80% | 44,730 psi | 69% | 2536 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 80% | 39,987 psi | 62% | 2480 fps | 97.1% |
| ADI AR 2217 | <<locked>> | 84% | 34,084 psi | 52% | 2346 fps | 95.3% |
| ADI AR 2218 | <<locked>> | 98% | 47,021 psi | 72% | 2707 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 80% | 27,238 psi | 42% | 2201 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 80% | 51,517 psi | 79% | 2638 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 44,730 psi | 69% | 2533 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,625 psi | 63% | 2487 fps | 98.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 39,508 psi | 61% | 2434 fps | 100% |
| Alliant Reloder-25 | 68.4 gr | 80% | 34,055 psi | 52% | 2375 fps | 99.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 44,063 psi | 68% | 2585 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 44,556 psi | 69% | 2638 fps | 95.3% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 44,367 psi | 68% | 2513 fps | 95.4% |
| Bofors RP15 | <<locked>> | 80% | 37,855 psi | 58% | 2428 fps | 97.6% |
| Bofors RP30 | <<locked>> | 82% | 33,808 psi | 52% | 2362 fps | 95.5% |
| Bofors RP5 | <<locked>> | 80% | 40,625 psi | 63% | 2487 fps | 98.4% |
| Bofors RP7 | <<locked>> | 80% | 55,100 psi | 85% | 2631 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 32,358 psi | 50% | 2306 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 55,129 psi | 85% | 2687 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 42,670 psi | 66% | 2484 fps | 97.2% |
| Hodgdon H4831 SC | <<locked>> | 80% | 41,843 psi | 64% | 2467 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 48,385 psi | 74% | 2520 fps | 100% |
| Hodgdon Retumbo | 69.1 gr | 80% | 33,214 psi | 51% | 2405 fps | 96.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,282 psi | 44% | 1503 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 50,415 psi | 78% | 2575 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 50,734 psi | 78% | 2579 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,874 psi | 67% | 2474 fps | 97.7% |
| IMR 7828 SSC | <<locked>> | 80% | 38,812 psi | 60% | 2464 fps | 96.9% |
| IMR 8133 Enduron | <<locked>> | 90% | 34,534 psi | 53% | 2405 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 54,041 psi | 83% | 2602 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 52,402 psi | 81% | 2602 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 35,143 psi | 54% | 2303 fps | 99% |
| Norma 204 | <<locked>> | 80% | 50,995 psi | 78% | 2625 fps | 99.7% |
| Norma 217 | <<locked>> | 84% | 28,369 psi | 44% | 2257 fps | 95% |
| Norma MRP | <<locked>> | 80% | 43,018 psi | 66% | 2556 fps | 99.6% |
| Norma URP | <<locked>> | 80% | 52,170 psi | 80% | 2615 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 38,609 psi | 59% | 2474 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 80% | 51,024 psi | 78% | 2625 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 34,563 psi | 53% | 2359 fps | 97.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,950 psi | 45% | 1535 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 53,911 psi | 83% | 2657 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 52,272 psi | 80% | 2680 fps | 100% |
| ReloadSwiss RS 76 | 74 gr | 80% | 32,271 psi | 50% | 2379 fps | 97.7% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 39,305 psi | 60% | 2523 fps | 95.9% |
| Rottweil R 904 | <<locked>> | 80% | 45,716 psi | 70% | 2513 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 80% | 44,338 psi | 68% | 2523 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 80% | 55,100 psi | 85% | 2631 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 54,041 psi | 83% | 2602 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 52,402 psi | 81% | 2602 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 52,765 psi | 81% | 2559 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 43,990 psi | 68% | 2520 fps | 99.1% |
| Somchem S361 | <<locked>> | 80% | 46,557 psi | 72% | 2507 fps | 98.1% |
| Somchem S365 | <<locked>> | 80% | 49,806 psi | 77% | 2575 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 44,657 psi | 69% | 2500 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 53,693 psi | 83% | 2608 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 39,001 psi | 60% | 2388 fps | 98.5% |
| Vihtavuori N170 | <<locked>> | 94% | 52,649 psi | 81% | 2654 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 52,924 psi | 81% | 2615 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 43,918 psi | 68% | 2507 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 42,859 psi | 66% | 2549 fps | 97.5% |
| Vihtavuori N565 | <<locked>> | 80% | 35,389 psi | 54% | 2375 fps | 95.3% |
| Vihtavuori N568 | <<locked>> | 88% | 40,727 psi | 63% | 2539 fps | 95.8% |
| Vihtavuori N570 | <<locked>> | 94% | 47,558 psi | 73% | 2707 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 52,750 psi | 81% | 2566 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 36,825 psi | 57% | 2484 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 40,944 psi | 63% | 2434 fps | 98.4% |
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 75 powders for .300 PRC loaded with the .308 | 220gr | Nosler Partition. Hodgdon Retumbo delivers the highest muzzle velocity at 2,874 fps; across all powders the maximum-charge window runs from 1,683 fps to 2,874 fps. Accurate 8700 gives the best case fill at 100 %, and 75 of the 75 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 1:13.0 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. Alliant Reloder-25, Hodgdon Retumbo, ReloadSwiss RS 76 rank at the top here: for .300 PRC with the .308 | 220gr | Nosler Partition they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 8700, Lovex D100, Shooters World 50 BMG 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.