Load Specifications
Load data in caliber .300 PRC with .308 | 206gr | Peregrine Glider (Glider GRM) 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% | 55,187 psi | 85% | 2730 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 56,695 psi | 87% | 2756 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 58,059 psi | 89% | 2887 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 82% | 57,653 psi | 89% | 2710 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 57,754 psi | 89% | 2822 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 94% | 55,332 psi | 85% | 2825 fps | 99.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,458 psi | 76% | 2730 fps | 98.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 44,121 psi | 68% | 2690 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 88% | 57,812 psi | 89% | 2808 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 55,172 psi | 85% | 2769 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 57,130 psi | 88% | 2808 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 94% | 55,317 psi | 85% | 2818 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 56,521 psi | 87% | 2785 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 55,956 psi | 86% | 2848 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 57,058 psi | 88% | 2874 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 57,058 psi | 88% | 2789 fps | 97.2% |
| Bofors RP15 | <<locked>> | 98% | 58,175 psi | 89% | 2861 fps | 99.9% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,735 psi | 80% | 2795 fps | 99.1% |
| Bofors RP5 | <<locked>> | 94% | 55,317 psi | 85% | 2818 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 55,376 psi | 85% | 2707 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,752 psi | 84% | 2815 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 86% | 58,610 psi | 90% | 2815 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 57,508 psi | 88% | 2772 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 92% | 55,332 psi | 85% | 2766 fps | 98.7% |
| Hodgdon H4831 SC | <<locked>> | 94% | 57,943 psi | 89% | 2805 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 57,928 psi | 89% | 2733 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,926 psi | 85% | 2927 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 55,172 psi | 85% | 2795 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,144 psi | 57% | 1706 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 57,188 psi | 88% | 2749 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 84% | 57,087 psi | 88% | 2730 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 57,000 psi | 88% | 2746 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 56,347 psi | 87% | 2749 fps | 98.9% |
| IMR 7828 SSC | <<locked>> | 96% | 57,000 psi | 88% | 2861 fps | 99.4% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 39,537 psi | 61% | 2592 fps | 96.3% |
| Lovex S065 | <<locked>> | 86% | 57,537 psi | 89% | 2726 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 55,593 psi | 86% | 2723 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 56,144 psi | 86% | 2743 fps | 100% |
| Norma 204 | <<locked>> | 88% | 58,349 psi | 90% | 2805 fps | 99.8% |
| Norma 217ᴾ | <<locked>> | 100% | 39,581 psi | 61% | 2618 fps | 98.5% |
| Norma MRP | <<locked>> | 92% | 55,172 psi | 85% | 2841 fps | 100% |
| Norma URP | <<locked>> | 86% | 55,114 psi | 85% | 2740 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 58,088 psi | 89% | 2884 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 88% | 57,783 psi | 89% | 2802 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 56,231 psi | 87% | 2818 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,927 psi | 58% | 1745 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 56,855 psi | 87% | 2782 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 55,303 psi | 85% | 2808 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 55,448 psi | 85% | 2920 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 50,154 psi | 77% | 2808 fps | 97.8% |
| Rottweil R 903 | <<locked>> | 82% | 56,623 psi | 87% | 2700 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 58,697 psi | 90% | 2789 fps | 99.5% |
| Rottweil R 905 | <<locked>> | 92% | 56,536 psi | 87% | 2795 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 84% | 55,376 psi | 85% | 2707 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 57,537 psi | 89% | 2726 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 55,593 psi | 86% | 2723 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 58,436 psi | 90% | 2759 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 56,666 psi | 87% | 2575 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,695 psi | 87% | 2684 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 56,101 psi | 86% | 2792 fps | 99.8% |
| Somchem S355 | <<locked>> | 82% | 56,318 psi | 87% | 2694 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 56,608 psi | 87% | 2730 fps | 98.8% |
| Somchem S365 | <<locked>> | 88% | 55,666 psi | 86% | 2743 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 57,000 psi | 88% | 2769 fps | 100% |
| Vihtavuori N150 | <<locked>> | 84% | 57,595 psi | 89% | 2667 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 57,043 psi | 88% | 2733 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 56,608 psi | 87% | 2753 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 56,130 psi | 86% | 2740 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 58,697 psi | 90% | 2812 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 55,042 psi | 85% | 2838 fps | 98.9% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 58,552 psi | 90% | 2874 fps | 99.4% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 51,343 psi | 79% | 2812 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 56,463 psi | 87% | 2690 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 58,610 psi | 90% | 2815 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 58,813 psi | 90% | 2923 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 57,014 psi | 88% | 2766 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% | 34,171 psi | 53% | 2356 fps | 97.9% |
| Accurate 4350 | <<locked>> | 80% | 46,151 psi | 71% | 2598 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 43,511 psi | 67% | 2638 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 54,302 psi | 84% | 2664 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 38,522 psi | 59% | 2480 fps | 96.7% |
| ADI AR 2213 | <<locked>> | 84% | 39,305 psi | 60% | 2530 fps | 95.6% |
| ADI AR 2217 | <<locked>> | 92% | 37,826 psi | 58% | 2493 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 90% | 31,691 psi | 49% | 2398 fps | 96.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,469 psi | 68% | 2608 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 51,387 psi | 79% | 2717 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,609 psi | 59% | 2480 fps | 96.8% |
| Alliant Reloder-22 | <<locked>> | 80% | 34,171 psi | 53% | 2418 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 33,025 psi | 51% | 2385 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,601 psi | 44% | 2297 fps | 96.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 36,143 psi | 56% | 2516 fps | 99.5% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 50,357 psi | 77% | 2680 fps | 95.7% |
| Bofors RP15 | <<locked>> | 82% | 34,055 psi | 52% | 2411 fps | 95.1% |
| Bofors RP30 | <<locked>> | 90% | 36,622 psi | 56% | 2507 fps | 95.4% |
| Bofors RP5 | <<locked>> | 80% | 34,171 psi | 53% | 2418 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 48,892 psi | 75% | 2605 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 88% | 36,158 psi | 56% | 2461 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 80% | 47,863 psi | 74% | 2648 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 80% | 50,415 psi | 78% | 2664 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 84% | 41,974 psi | 65% | 2536 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 84% | 41,278 psi | 64% | 2520 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,858 psi | 64% | 2493 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 34,069 psi | 52% | 2490 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 47,471 psi | 73% | 2674 fps | 99.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,673 psi | 43% | 1519 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,309 psi | 68% | 2539 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,343 psi | 77% | 2628 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 43,801 psi | 67% | 2546 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 40,988 psi | 63% | 2480 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 84% | 37,840 psi | 58% | 2507 fps | 95.2% |
| IMR 8133 Enduron | <<locked>> | 98% | 36,927 psi | 57% | 2533 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 47,790 psi | 74% | 2579 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 46,093 psi | 71% | 2572 fps | 99.6% |
| Lovex S071 | <<locked>> | 80% | 29,341 psi | 45% | 2238 fps | 96.1% |
| Norma 204 | <<locked>> | 80% | 44,280 psi | 68% | 2575 fps | 98.1% |
| Norma 217 | <<locked>> | 94% | 32,169 psi | 49% | 2438 fps | 95.8% |
| Norma MRP | 67 gr | 80% | 35,766 psi | 55% | 2484 fps | 97.4% |
| Norma URP | <<locked>> | 80% | 45,411 psi | 70% | 2589 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 37,333 psi | 57% | 2510 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 44,077 psi | 68% | 2585 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 84% | 33,127 psi | 51% | 2395 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,413 psi | 44% | 1558 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 46,064 psi | 71% | 2618 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,324 psi | 68% | 2638 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 30,864 psi | 47% | 2402 fps | 95.5% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 42,931 psi | 66% | 2674 fps | 95.9% |
| Rottweil R 903 | <<locked>> | 80% | 53,229 psi | 82% | 2651 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 39,813 psi | 61% | 2461 fps | 96% |
| Rottweil R 905 | <<locked>> | 80% | 37,869 psi | 58% | 2464 fps | 96.8% |
| Rottweil R 907 | <<locked>> | 80% | 48,892 psi | 75% | 2605 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,790 psi | 74% | 2579 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 46,093 psi | 71% | 2572 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 54,607 psi | 84% | 2707 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 53,301 psi | 82% | 2533 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,659 psi | 72% | 2530 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,550 psi | 58% | 2457 fps | 96.6% |
| Somchem S355 | <<locked>> | 80% | 53,011 psi | 82% | 2648 fps | 100% |
| Somchem S361 | <<locked>> | 80% | 40,379 psi | 62% | 2451 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 42,308 psi | 65% | 2543 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,189 psi | 59% | 2444 fps | 97.6% |
| Vihtavuori N150 | <<locked>> | 80% | 50,807 psi | 78% | 2575 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,876 psi | 72% | 2582 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 33,199 psi | 51% | 2329 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 45,948 psi | 71% | 2582 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 36,956 psi | 57% | 2454 fps | 99.8% |
| Vihtavuori N560 | 70.4 gr | 84% | 41,582 psi | 64% | 2595 fps | 96% |
| Vihtavuori N565 | <<locked>> | 88% | 38,711 psi | 60% | 2526 fps | 95.3% |
| Vihtavuori N568 | <<locked>> | 96% | 44,556 psi | 69% | 2690 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,774 psi | 70% | 2543 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 48,066 psi | 74% | 2651 fps | 99.7% |
| Winchester StaBALL HD | 66.3 gr | 80% | 29,080 psi | 45% | 2398 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,925 psi | 54% | 2372 fps | 95.5% |
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 | 206gr | Peregrine Glider (Glider GRM). Hodgdon Retumbo delivers the highest muzzle velocity at 2,927 fps; across all powders the maximum-charge window runs from 1,706 fps to 2,927 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 206.0 gr projectile in 0.308" calls for a 1:8.5 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 .308 | 206gr | Peregrine Glider (Glider GRM) 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.