Load Specifications
Load data in caliber .300 PRC with .308 | 225gr | CutEdge LZR MAX GEN2 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 Vihtavuori N560.
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% | 56,275 psi | 87% | 2631 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 57,377 psi | 88% | 2648 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 55,042 psi | 85% | 2733 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 90% | 58,552 psi | 90% | 2720 fps | 100% |
| ADI AR 2213 | <<locked>> | 92% | 56,362 psi | 87% | 2730 fps | 99.8% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 54,244 psi | 83% | 2703 fps | 99.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 48,530 psi | 75% | 2667 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 86% | 58,755 psi | 90% | 2700 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 57,943 psi | 89% | 2710 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 92% | 56,478 psi | 87% | 2726 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 94% | 57,856 psi | 89% | 2684 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 57,624 psi | 89% | 2753 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 58,639 psi | 90% | 2776 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 50,604 psi | 78% | 2720 fps | 97% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 57,261 psi | 88% | 2697 fps | 98.2% |
| Bofors RP15 | <<locked>> | 94% | 55,651 psi | 86% | 2710 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 57,261 psi | 88% | 2766 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 56,478 psi | 87% | 2726 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 55,666 psi | 86% | 2602 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 55,811 psi | 86% | 2723 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 55,303 psi | 85% | 2654 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 57,769 psi | 89% | 2664 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 55,883 psi | 86% | 2671 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 92% | 58,711 psi | 90% | 2710 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 58,755 psi | 90% | 2625 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 56,565 psi | 87% | 2835 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 55,811 psi | 86% | 2690 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,405 psi | 58% | 1640 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 57,435 psi | 88% | 2641 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 57,072 psi | 88% | 2621 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 57,827 psi | 89% | 2644 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 56,797 psi | 87% | 2651 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 94% | 58,276 psi | 90% | 2766 fps | 99.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 44,019 psi | 68% | 2579 fps | 98.5% |
| Lovex S065 | <<locked>> | 84% | 57,682 psi | 89% | 2615 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 56,101 psi | 86% | 2618 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 57,450 psi | 88% | 2644 fps | 100% |
| Norma 204 | <<locked>> | 86% | 58,813 psi | 90% | 2703 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 44,338 psi | 68% | 2602 fps | 99.8% |
| Norma MRP | <<locked>> | 90% | 56,376 psi | 87% | 2740 fps | 100% |
| Norma URP | <<locked>> | 84% | 55,883 psi | 86% | 2635 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 55,332 psi | 85% | 2733 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 86% | 58,407 psi | 90% | 2694 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 57,537 psi | 89% | 2723 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,232 psi | 59% | 1680 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 57,696 psi | 89% | 2677 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 56,086 psi | 86% | 2703 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 57,290 psi | 88% | 2828 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 56,202 psi | 86% | 2792 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 88% | 55,550 psi | 85% | 2638 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 90% | 57,493 psi | 88% | 2697 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 55,666 psi | 86% | 2602 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 57,682 psi | 89% | 2615 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 56,101 psi | 86% | 2618 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 56,710 psi | 87% | 2575 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 57,072 psi | 88% | 2694 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 56,971 psi | 88% | 2635 fps | 99.4% |
| Somchem S365 | <<locked>> | 86% | 56,608 psi | 87% | 2635 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 57,638 psi | 89% | 2667 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 57,957 psi | 89% | 2556 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 57,508 psi | 88% | 2625 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 57,508 psi | 88% | 2654 fps | 100% |
| Vihtavuori N170 | <<locked>> | 98% | 56,057 psi | 86% | 2671 fps | 96.4% |
| Vihtavuori N550 | <<locked>> | 84% | 56,623 psi | 87% | 2631 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 56,231 psi | 87% | 2661 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 56,057 psi | 86% | 2743 fps | 99.6% |
| Vihtavuori N565 | <<locked>> | 96% | 56,043 psi | 86% | 2730 fps | 99.7% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 57,072 psi | 88% | 2792 fps | 99.2% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 54,085 psi | 83% | 2789 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 56,985 psi | 88% | 2585 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 55,521 psi | 85% | 2657 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 56,898 psi | 88% | 2769 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 57,856 psi | 89% | 2671 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% | 37,463 psi | 58% | 2329 fps | 99.4% |
| Accurate 4350 | <<locked>> | 80% | 50,140 psi | 77% | 2549 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 38,522 psi | 59% | 2434 fps | 95.4% |
| ADI AR 2209 | <<locked>> | 80% | 41,771 psi | 64% | 2451 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 80% | 37,275 psi | 57% | 2392 fps | 96.2% |
| ADI AR 2217 | <<locked>> | 86% | 33,750 psi | 52% | 2313 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 84% | 28,500 psi | 44% | 2221 fps | 95.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 48,327 psi | 74% | 2556 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,843 psi | 64% | 2448 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 37,623 psi | 58% | 2398 fps | 97.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 36,390 psi | 56% | 2352 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,285 psi | 48% | 2283 fps | 98.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 40,248 psi | 62% | 2493 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 47,036 psi | 72% | 2657 fps | 96% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 44,657 psi | 69% | 2484 fps | 95.4% |
| Bofors RP15 | <<locked>> | 80% | 35,012 psi | 54% | 2339 fps | 96.7% |
| Bofors RP30 | <<locked>> | 84% | 32,953 psi | 51% | 2323 fps | 95.2% |
| Bofors RP5 | <<locked>> | 80% | 37,623 psi | 58% | 2398 fps | 97.7% |
| Bofors RP7 | <<locked>> | 80% | 52,243 psi | 80% | 2552 fps | 100% |
| Hodgdon H1000 | <<locked>> | 84% | 34,374 psi | 53% | 2329 fps | 96.1% |
| Hodgdon H414 | <<locked>> | 80% | 51,663 psi | 79% | 2602 fps | 100% |
| Hodgdon H4350 | <<locked>> | 80% | 54,244 psi | 83% | 2615 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 39,769 psi | 61% | 2395 fps | 96.4% |
| Hodgdon H4831 SC | <<locked>> | 80% | 39,102 psi | 60% | 2382 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 45,252 psi | 70% | 2441 fps | 100% |
| Hodgdon Retumbo | 65.1 gr | 80% | 30,516 psi | 47% | 2303 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 51,851 psi | 80% | 2635 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,963 psi | 43% | 1463 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,572 psi | 73% | 2493 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 53,635 psi | 83% | 2572 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 47,442 psi | 73% | 2497 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 41,278 psi | 64% | 2392 fps | 97% |
| IMR 7828 SSC | <<locked>> | 80% | 35,853 psi | 55% | 2369 fps | 95.8% |
| IMR 8133 Enduron | <<locked>> | 92% | 33,547 psi | 52% | 2359 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 51,126 psi | 79% | 2526 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 49,472 psi | 76% | 2523 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 32,068 psi | 49% | 2211 fps | 98.2% |
| Norma 204 | <<locked>> | 80% | 47,993 psi | 74% | 2539 fps | 99.4% |
| Norma 217 | <<locked>> | 88% | 29,341 psi | 45% | 2270 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 39,581 psi | 61% | 2461 fps | 99.2% |
| Norma URP | <<locked>> | 80% | 49,081 psi | 76% | 2539 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 35,447 psi | 55% | 2375 fps | 96.1% |
| Ramshot Hunter | <<locked>> | 80% | 47,906 psi | 74% | 2543 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 31,575 psi | 49% | 2267 fps | 96.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,587 psi | 44% | 1496 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 50,270 psi | 77% | 2572 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 48,631 psi | 75% | 2598 fps | 100% |
| ReloadSwiss RS 76 | 69.7 gr | 80% | 29,428 psi | 45% | 2277 fps | 96.3% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 38,247 psi | 59% | 2480 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 80% | 42,902 psi | 66% | 2428 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 80% | 41,220 psi | 63% | 2434 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 80% | 52,243 psi | 80% | 2552 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 51,126 psi | 79% | 2526 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 49,472 psi | 76% | 2523 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,893 psi | 77% | 2480 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 40,886 psi | 63% | 2431 fps | 98.5% |
| Somchem S361 | <<locked>> | 80% | 43,627 psi | 67% | 2421 fps | 97.4% |
| Somchem S365 | <<locked>> | 80% | 46,267 psi | 71% | 2493 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 41,640 psi | 64% | 2415 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 80% | 54,360 psi | 84% | 2513 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 50,531 psi | 78% | 2530 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 36,172 psi | 56% | 2303 fps | 97.7% |
| Vihtavuori N170 | <<locked>> | 96% | 52,359 psi | 81% | 2618 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 49,719 psi | 76% | 2536 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 40,538 psi | 62% | 2421 fps | 100% |
| Vihtavuori N560 | 67.6 gr | 80% | 39,624 psi | 61% | 2454 fps | 96.5% |
| Vihtavuori N565 | <<locked>> | 82% | 34,693 psi | 53% | 2339 fps | 95% |
| Vihtavuori N568 | <<locked>> | 90% | 39,784 psi | 61% | 2493 fps | 95.5% |
| Vihtavuori N570 | <<locked>> | 96% | 46,717 psi | 72% | 2664 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 49,603 psi | 76% | 2490 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 51,866 psi | 80% | 2605 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 33,069 psi | 51% | 2388 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 38,014 psi | 58% | 2346 fps | 97.7% |
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 73 powders for .300 PRC loaded with the .308 | 225gr | CutEdge LZR MAX GEN2. Hodgdon Retumbo delivers the highest muzzle velocity at 2,835 fps; across all powders the maximum-charge window runs from 1,640 fps to 2,835 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 225.0 gr projectile in 0.308" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-33 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, Vihtavuori N560 rank at the top here: for .300 PRC with the .308 | 225gr | CutEdge LZR MAX GEN2 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.