Load Specifications
Load data in caliber .300 PRC with .308 | 200gr | Peregrine VRG-3 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 IMR 7828 SSC.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 94% | 57,972 psi | 89% | 2815 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 55,477 psi | 85% | 2789 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 57,029 psi | 88% | 2920 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 90% | 56,565 psi | 87% | 2854 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 94% | 58,189 psi | 90% | 2920 fps | 99.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,127 psi | 80% | 2825 fps | 99.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 46,528 psi | 72% | 2782 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 56,652 psi | 87% | 2844 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 57,841 psi | 89% | 2854 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 55,985 psi | 86% | 2841 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 94% | 58,218 psi | 90% | 2910 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 94% | 55,869 psi | 86% | 2825 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 55,317 psi | 85% | 2887 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 56,333 psi | 87% | 2913 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 55,767 psi | 86% | 2825 fps | 97.1% |
| Bofors RP15 | <<locked>> | 96% | 57,319 psi | 88% | 2897 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 54,984 psi | 85% | 2890 fps | 99.5% |
| Bofors RP5 | <<locked>> | 94% | 58,218 psi | 90% | 2910 fps | 99.9% |
| Bofors RP7 | <<locked>> | 84% | 57,464 psi | 88% | 2792 fps | 100% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 57,725 psi | 89% | 2910 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 84% | 57,130 psi | 88% | 2844 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 56,028 psi | 86% | 2805 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 92% | 57,943 psi | 89% | 2858 fps | 99.1% |
| Hodgdon H4831 SC | <<locked>> | 92% | 56,782 psi | 87% | 2841 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 56,782 psi | 87% | 2769 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 58,001 psi | 89% | 3022 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 58,001 psi | 89% | 2887 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,202 psi | 57% | 1755 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 55,898 psi | 86% | 2782 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 55,463 psi | 85% | 2762 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 55,854 psi | 86% | 2782 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 58,668 psi | 90% | 2838 fps | 99.2% |
| IMR 7828 SSC | <<locked>> | 94% | 56,173 psi | 86% | 2900 fps | 99.4% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 42,032 psi | 65% | 2684 fps | 97.1% |
| Lovex S065 | <<locked>> | 84% | 56,115 psi | 86% | 2759 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 57,928 psi | 89% | 2808 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 55,506 psi | 85% | 2782 fps | 100% |
| Norma 204 | <<locked>> | 86% | 56,985 psi | 88% | 2838 fps | 99.7% |
| Norma 217ᴾ | <<locked>> | 100% | 42,351 psi | 65% | 2713 fps | 99% |
| Norma MRP | <<locked>> | 92% | 58,160 psi | 89% | 2930 fps | 100% |
| Norma URP | <<locked>> | 86% | 57,667 psi | 89% | 2825 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 56,985 psi | 88% | 2920 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 86% | 56,550 psi | 87% | 2835 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 55,259 psi | 85% | 2851 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,116 psi | 59% | 1798 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 55,579 psi | 86% | 2815 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 58,175 psi | 89% | 2897 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 54,940 psi | 85% | 2959 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 53,940 psi | 83% | 2913 fps | 98.5% |
| Rottweil R 904 | <<locked>> | 90% | 57,493 psi | 88% | 2825 fps | 99.4% |
| Rottweil R 905 | <<locked>> | 90% | 55,492 psi | 85% | 2831 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 84% | 57,464 psi | 88% | 2792 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 56,115 psi | 86% | 2759 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 57,928 psi | 89% | 2808 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 58,465 psi | 90% | 2651 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 55,187 psi | 85% | 2717 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 55,071 psi | 85% | 2828 fps | 99.8% |
| Somchem S355 | <<locked>> | 82% | 58,508 psi | 90% | 2776 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 55,245 psi | 85% | 2762 fps | 98.7% |
| Somchem S365 | <<locked>> | 88% | 58,494 psi | 90% | 2828 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 55,767 psi | 86% | 2802 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 56,217 psi | 86% | 2703 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 55,767 psi | 86% | 2769 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 55,521 psi | 85% | 2789 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 58,523 psi | 90% | 2822 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 57,943 psi | 89% | 2851 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 57,856 psi | 89% | 2930 fps | 99.2% |
| Vihtavuori N565 | <<locked>> | 98% | 57,711 psi | 89% | 2910 fps | 99.3% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 54,839 psi | 84% | 2913 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 55,027 psi | 85% | 2723 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 57,363 psi | 88% | 2848 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 58,334 psi | 90% | 2959 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 55,811 psi | 86% | 2802 fps | 99.7% |
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% | 35,868 psi | 55% | 2434 fps | 98.3% |
| Accurate 4350 | <<locked>> | 80% | 48,196 psi | 74% | 2677 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 42,815 psi | 66% | 2664 fps | 95.6% |
| ADI AR 2209 | <<locked>> | 80% | 40,364 psi | 62% | 2566 fps | 97.3% |
| ADI AR 2213 | <<locked>> | 82% | 38,421 psi | 59% | 2552 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 90% | 37,188 psi | 57% | 2526 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 88% | 31,227 psi | 48% | 2425 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,412 psi | 71% | 2687 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 53,882 psi | 83% | 2802 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,263 psi | 62% | 2559 fps | 97.3% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,100 psi | 56% | 2500 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,722 psi | 53% | 2461 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,095 psi | 46% | 2379 fps | 97.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 38,435 psi | 59% | 2605 fps | 99.7% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 49,197 psi | 76% | 2710 fps | 95.5% |
| Bofors RP15 | <<locked>> | 82% | 35,955 psi | 55% | 2497 fps | 95.8% |
| Bofors RP30 | <<locked>> | 88% | 36,260 psi | 56% | 2533 fps | 95.2% |
| Bofors RP5 | <<locked>> | 80% | 36,100 psi | 56% | 2500 fps | 96% |
| Bofors RP7 | <<locked>> | 80% | 50,734 psi | 78% | 2687 fps | 99.7% |
| Hodgdon H1000 | <<locked>> | 86% | 35,389 psi | 54% | 2484 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 80% | 50,009 psi | 77% | 2733 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 80% | 52,562 psi | 81% | 2749 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 82% | 41,147 psi | 63% | 2562 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 82% | 40,335 psi | 62% | 2546 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,729 psi | 67% | 2572 fps | 100% |
| Hodgdon Retumbo | 72.4 gr | 84% | 33,504 psi | 52% | 2516 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 50,009 psi | 77% | 2762 fps | 99.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,818 psi | 43% | 1568 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,195 psi | 71% | 2625 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,098 psi | 80% | 2710 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 45,905 psi | 71% | 2628 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,059 psi | 62% | 2510 fps | 95.5% |
| IMR 7828 SSC | 72.4 gr | 84% | 39,711 psi | 61% | 2595 fps | 95.9% |
| IMR 8133 Enduron | <<locked>> | 96% | 36,767 psi | 57% | 2569 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 49,458 psi | 76% | 2654 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 47,892 psi | 74% | 2651 fps | 99.7% |
| Lovex S071 | <<locked>> | 80% | 30,835 psi | 47% | 2313 fps | 96.7% |
| Norma 204 | <<locked>> | 80% | 46,412 psi | 71% | 2664 fps | 98.5% |
| Norma 217 | <<locked>> | 92% | 32,010 psi | 49% | 2467 fps | 95.6% |
| Norma MRP | <<locked>> | 80% | 37,869 psi | 58% | 2569 fps | 98% |
| Norma URP | <<locked>> | 80% | 47,340 psi | 73% | 2667 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 36,622 psi | 56% | 2536 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 46,253 psi | 71% | 2671 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 82% | 32,460 psi | 50% | 2415 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,543 psi | 44% | 1608 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 48,370 psi | 74% | 2703 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 46,717 psi | 72% | 2723 fps | 100% |
| ReloadSwiss RS 76 | 75.7 gr | 82% | 30,342 psi | 47% | 2421 fps | 95% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 42,656 psi | 66% | 2707 fps | 95.8% |
| Rottweil R 904 | <<locked>> | 80% | 41,640 psi | 64% | 2546 fps | 96.5% |
| Rottweil R 905 | <<locked>> | 80% | 39,639 psi | 61% | 2546 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 80% | 50,734 psi | 78% | 2687 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,458 psi | 76% | 2654 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 47,892 psi | 74% | 2651 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 55,013 psi | 85% | 2608 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,472 psi | 75% | 2612 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,305 psi | 60% | 2543 fps | 97.2% |
| Somchem S355 | <<locked>> | 80% | 54,868 psi | 84% | 2726 fps | 100% |
| Somchem S361 | <<locked>> | 80% | 42,192 psi | 65% | 2533 fps | 95.9% |
| Somchem S365 | <<locked>> | 80% | 44,599 psi | 69% | 2625 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,118 psi | 62% | 2526 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 80% | 52,678 psi | 81% | 2654 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 48,747 psi | 75% | 2664 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 34,722 psi | 53% | 2405 fps | 96.2% |
| Vihtavuori N550 | <<locked>> | 80% | 48,008 psi | 74% | 2664 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 38,928 psi | 60% | 2536 fps | 99.9% |
| Vihtavuori N560 | <<locked>> | 82% | 40,799 psi | 63% | 2621 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 86% | 38,261 psi | 59% | 2556 fps | 95.1% |
| Vihtavuori N568 | <<locked>> | 94% | 44,077 psi | 68% | 2723 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 47,892 psi | 74% | 2621 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,169 psi | 77% | 2736 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 31,154 psi | 48% | 2487 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,695 psi | 56% | 2454 fps | 96.2% |
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 78 powders for .300 PRC loaded with the .308 | 200gr | Peregrine VRG-3. Hodgdon Retumbo delivers the highest muzzle velocity at 3,022 fps; across all powders the maximum-charge window runs from 1,755 fps to 3,022 fps. ADI AR 2217 gives the best case fill at 100 %, and 78 of the 78 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 1:12.0 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, IMR 7828 SSC rank at the top here: for .300 PRC with the .308 | 200gr | Peregrine VRG-3 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2218, 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.