Load Specifications
Load data in caliber .300 PRC with .308 | 240gr | CutEdge LZR MAX 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 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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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>> | 92% | 55,143 psi | 85% | 2520 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 56,275 psi | 87% | 2536 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 57,914 psi | 89% | 2677 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 90% | 57,392 psi | 88% | 2605 fps | 100% |
| ADI AR 2213 | <<locked>> | 92% | 55,071 psi | 85% | 2615 fps | 99.8% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,939 psi | 81% | 2589 fps | 99.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 47,210 psi | 73% | 2552 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 86% | 57,856 psi | 89% | 2589 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 56,898 psi | 88% | 2595 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 92% | 55,201 psi | 85% | 2608 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 94% | 56,855 psi | 87% | 2572 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 56,202 psi | 86% | 2638 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 57,319 psi | 88% | 2661 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 49,124 psi | 76% | 2608 fps | 97% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 56,434 psi | 87% | 2589 fps | 98.3% |
| Bofors RP15 | <<locked>> | 96% | 58,030 psi | 89% | 2648 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 55,680 psi | 86% | 2648 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 55,201 psi | 85% | 2608 fps | 100% |
| Bofors RP7 | <<locked>> | 84% | 58,392 psi | 90% | 2539 fps | 100% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 58,639 psi | 90% | 2664 fps | 100% |
| Hodgdon H414 | <<locked>> | 84% | 58,102 psi | 89% | 2592 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 56,898 psi | 88% | 2552 fps | 100% |
| Hodgdon H4831 | <<locked>> | 92% | 58,755 psi | 90% | 2608 fps | 99.7% |
| Hodgdon H4831 SC | <<locked>> | 92% | 57,464 psi | 88% | 2595 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 57,812 psi | 89% | 2513 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 55,071 psi | 85% | 2713 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 58,726 psi | 90% | 2631 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,434 psi | 58% | 1565 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 56,666 psi | 87% | 2533 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 56,289 psi | 87% | 2510 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 56,652 psi | 87% | 2530 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 55,782 psi | 86% | 2539 fps | 99.6% |
| IMR 7828 SSC | <<locked>> | 94% | 57,072 psi | 88% | 2651 fps | 99.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 42,844 psi | 66% | 2474 fps | 98.6% |
| Lovex S065 | <<locked>> | 84% | 57,014 psi | 88% | 2507 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 58,595 psi | 90% | 2552 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 56,376 psi | 87% | 2536 fps | 100% |
| Norma 204 | <<locked>> | 86% | 57,856 psi | 89% | 2589 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 43,163 psi | 66% | 2497 fps | 99.9% |
| Norma MRP | <<locked>> | 90% | 55,114 psi | 85% | 2625 fps | 100% |
| Norma URP | <<locked>> | 86% | 58,407 psi | 90% | 2569 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 58,175 psi | 89% | 2674 fps | 100% |
| Ramshot Hunter | <<locked>> | 86% | 57,435 psi | 88% | 2582 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 56,028 psi | 86% | 2608 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,116 psi | 59% | 1598 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 56,565 psi | 87% | 2562 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 55,085 psi | 85% | 2592 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 55,709 psi | 86% | 2710 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 54,491 psi | 84% | 2677 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 90% | 58,291 psi | 90% | 2575 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 90% | 56,521 psi | 87% | 2585 fps | 100% |
| Rottweil R 907 | <<locked>> | 84% | 58,392 psi | 90% | 2539 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 57,014 psi | 88% | 2507 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 58,595 psi | 90% | 2552 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 56,028 psi | 86% | 2470 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 56,101 psi | 86% | 2582 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 55,985 psi | 86% | 2523 fps | 99.5% |
| Somchem S365 | <<locked>> | 86% | 55,608 psi | 86% | 2523 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 56,666 psi | 87% | 2556 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 57,116 psi | 88% | 2448 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 56,463 psi | 87% | 2513 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 56,391 psi | 87% | 2543 fps | 100% |
| Vihtavuori N170ᴾ | <<locked>> | 100% | 58,624 psi | 90% | 2615 fps | 97.2% |
| Vihtavuori N550 | <<locked>> | 84% | 55,564 psi | 85% | 2520 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 58,784 psi | 90% | 2592 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 54,897 psi | 84% | 2628 fps | 99.6% |
| Vihtavuori N565 | <<locked>> | 98% | 58,566 psi | 90% | 2667 fps | 99.9% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 55,506 psi | 85% | 2677 fps | 99.2% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 52,489 psi | 81% | 2671 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 55,985 psi | 86% | 2477 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 58,363 psi | 90% | 2595 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 55,230 psi | 85% | 2654 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 56,724 psi | 87% | 2559 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% | 36,637 psi | 56% | 2231 fps | 99.5% |
| Accurate 4350 | <<locked>> | 80% | 49,139 psi | 76% | 2441 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 37,739 psi | 58% | 2336 fps | 95.7% |
| ADI AR 2209 | <<locked>> | 80% | 41,089 psi | 63% | 2349 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 80% | 36,593 psi | 56% | 2293 fps | 96.4% |
| ADI AR 2217 | <<locked>> | 86% | 32,967 psi | 51% | 2215 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 84% | 27,891 psi | 43% | 2133 fps | 96.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 47,355 psi | 73% | 2448 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,031 psi | 63% | 2343 fps | 98.7% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,869 psi | 57% | 2300 fps | 97.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,578 psi | 55% | 2254 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,676 psi | 47% | 2192 fps | 98.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 39,392 psi | 61% | 2395 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 42,482 psi | 65% | 2487 fps | 95.1% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 43,990 psi | 68% | 2382 fps | 95.6% |
| Bofors RP15 | <<locked>> | 80% | 34,316 psi | 53% | 2244 fps | 96.9% |
| Bofors RP30 | <<locked>> | 84% | 32,126 psi | 49% | 2228 fps | 95.4% |
| Bofors RP5 | <<locked>> | 80% | 36,869 psi | 57% | 2300 fps | 97.9% |
| Bofors RP7 | <<locked>> | 80% | 51,416 psi | 79% | 2444 fps | 100% |
| Hodgdon H1000 | <<locked>> | 82% | 31,386 psi | 48% | 2178 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 50,894 psi | 78% | 2493 fps | 100% |
| Hodgdon H4350 | <<locked>> | 80% | 53,417 psi | 82% | 2503 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 39,102 psi | 60% | 2297 fps | 96.6% |
| Hodgdon H4831 SC | <<locked>> | 80% | 38,392 psi | 59% | 2283 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,672 psi | 69% | 2343 fps | 100% |
| Hodgdon Retumbo | 60.8 gr | 80% | 30,008 psi | 46% | 2215 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 50,865 psi | 78% | 2526 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,036 psi | 43% | 1394 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,891 psi | 72% | 2392 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,881 psi | 81% | 2464 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 46,644 psi | 72% | 2392 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,683 psi | 63% | 2293 fps | 97.2% |
| IMR 7828 SSC | <<locked>> | 80% | 35,273 psi | 54% | 2274 fps | 96.1% |
| IMR 8133 Enduron | <<locked>> | 92% | 32,735 psi | 50% | 2264 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 50,299 psi | 77% | 2418 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,733 psi | 75% | 2415 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 31,502 psi | 48% | 2123 fps | 98.4% |
| Norma 204 | <<locked>> | 80% | 47,137 psi | 73% | 2434 fps | 99.5% |
| Norma 217 | <<locked>> | 88% | 28,645 psi | 44% | 2178 fps | 96% |
| Norma MRP | <<locked>> | 80% | 38,798 psi | 60% | 2362 fps | 99.3% |
| Norma URP | <<locked>> | 80% | 48,269 psi | 74% | 2431 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 34,708 psi | 53% | 2277 fps | 96.3% |
| Ramshot Hunter | <<locked>> | 80% | 47,036 psi | 72% | 2434 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 30,879 psi | 48% | 2172 fps | 96.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,718 psi | 44% | 1427 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 49,255 psi | 76% | 2464 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 47,688 psi | 73% | 2487 fps | 100% |
| ReloadSwiss RS 76 | 65 gr | 80% | 28,747 psi | 44% | 2185 fps | 96.5% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 37,188 psi | 57% | 2375 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 42,366 psi | 65% | 2329 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 80% | 40,509 psi | 62% | 2333 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 80% | 51,416 psi | 79% | 2444 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,299 psi | 77% | 2418 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,733 psi | 75% | 2415 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,269 psi | 76% | 2375 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 40,190 psi | 62% | 2329 fps | 98.7% |
| Somchem S361 | <<locked>> | 80% | 42,946 psi | 66% | 2323 fps | 97.5% |
| Somchem S365 | <<locked>> | 80% | 45,455 psi | 70% | 2388 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,872 psi | 63% | 2313 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 80% | 53,563 psi | 82% | 2405 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 49,617 psi | 76% | 2421 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,433 psi | 55% | 2205 fps | 97.9% |
| Vihtavuori N170 | <<locked>> | 96% | 51,271 psi | 79% | 2510 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 48,776 psi | 75% | 2428 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,697 psi | 61% | 2320 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 38,885 psi | 60% | 2356 fps | 96.7% |
| Vihtavuori N565 | <<locked>> | 82% | 33,895 psi | 52% | 2244 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 90% | 38,856 psi | 60% | 2395 fps | 95.6% |
| Vihtavuori N570 | <<locked>> | 96% | 45,585 psi | 70% | 2556 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,675 psi | 75% | 2385 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 51,126 psi | 79% | 2497 fps | 100% |
| Winchester StaBALL HD | 62.4 gr | 80% | 32,068 psi | 49% | 2293 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,376 psi | 58% | 2251 fps | 97.9% |
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 79 powders for .300 PRC loaded with the .308 | 240gr | CutEdge LZR MAX. Hodgdon Retumbo delivers the highest muzzle velocity at 2,713 fps; across all powders the maximum-charge window runs from 1,565 fps to 2,713 fps. ADI AR 2217 gives the best case fill at 100 %, and 79 of the 79 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 240.0 gr projectile in 0.308" calls for a 1:7.5 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 | 240gr | CutEdge LZR MAX they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-50, 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.