Load Specifications
Load data in caliber .300 H&H Mag. with .308 | 220gr | Lapua ScenarL bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Norma MRP and Accurate MAGPRO.
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 2700 | <<locked>> | 82% | 56,304 psi | 90% | 2507 fps | 99.7% |
| Accurate 3100 | <<locked>> | 98% | 55,085 psi | 88% | 2562 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 56,246 psi | 90% | 2480 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 53,505 psi | 86% | 2546 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 56,275 psi | 90% | 2700 fps | 99% |
| Accurate MAGPRO | <<locked>> | 96% | 53,461 psi | 86% | 2648 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 84% | 55,666 psi | 89% | 2513 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,172 psi | 87% | 2595 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 98% | 55,405 psi | 89% | 2648 fps | 98.6% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 43,221 psi | 69% | 2441 fps | 96.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,261 psi | 61% | 2408 fps | 98% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 54,505 psi | 87% | 2595 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 53,505 psi | 86% | 2490 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,404 psi | 87% | 2598 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 55,564 psi | 89% | 2615 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 53,795 psi | 86% | 2589 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 54,781 psi | 88% | 2644 fps | 99.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 55,593 psi | 89% | 2618 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,124 psi | 77% | 2572 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 96% | 55,738 psi | 89% | 2703 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 53,693 psi | 86% | 2628 fps | 99.3% |
| Bofors RP3 | <<locked>> | 82% | 54,099 psi | 87% | 2503 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 43,918 psi | 70% | 2507 fps | 97.1% |
| Bofors RP5 | <<locked>> | 98% | 54,781 psi | 88% | 2644 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 53,359 psi | 86% | 2500 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 47,616 psi | 76% | 2523 fps | 98% |
| Hodgdon H380 | <<locked>> | 82% | 54,288 psi | 87% | 2520 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 55,390 psi | 89% | 2595 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 86% | 54,998 psi | 88% | 2559 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 96% | 55,637 psi | 89% | 2595 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,505 psi | 87% | 2579 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 54,752 psi | 88% | 2530 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,123 psi | 76% | 2621 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 88% | 55,506 psi | 89% | 2635 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,782 psi | 59% | 1555 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,361 psi | 89% | 2497 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 54,491 psi | 87% | 2536 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 54,926 psi | 88% | 2523 fps | 99.8% |
| IMR 4831 | <<locked>> | 90% | 53,867 psi | 86% | 2539 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 53,476 psi | 86% | 2530 fps | 97.9% |
| IMR 7828 SSC | <<locked>> | 98% | 53,084 psi | 85% | 2625 fps | 98.4% |
| Lovex S062 | <<locked>> | 82% | 55,651 psi | 89% | 2487 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,158 psi | 88% | 2520 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 53,316 psi | 85% | 2516 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,037 psi | 79% | 2480 fps | 99.9% |
| Norma 203B | <<locked>> | 82% | 56,391 psi | 90% | 2543 fps | 100% |
| Norma 204 | <<locked>> | 90% | 55,361 psi | 89% | 2589 fps | 99.2% |
| Norma MRP | <<locked>> | 96% | 54,375 psi | 87% | 2667 fps | 99.9% |
| Norma URP | <<locked>> | 90% | 55,724 psi | 89% | 2582 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 53,272 psi | 85% | 2641 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 90% | 54,549 psi | 87% | 2589 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,314 psi | 82% | 2585 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,463 psi | 60% | 1591 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,099 psi | 87% | 2510 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 54,998 psi | 88% | 2602 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,345 psi | 86% | 2569 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 55,259 psi | 89% | 2644 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,963 psi | 75% | 2615 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 84% | 54,491 psi | 87% | 2503 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 55,869 psi | 90% | 2569 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 94% | 53,069 psi | 85% | 2572 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 86% | 53,359 psi | 86% | 2500 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,158 psi | 88% | 2520 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 55,651 psi | 89% | 2487 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 53,316 psi | 85% | 2516 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 55,869 psi | 90% | 2556 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,071 psi | 88% | 2392 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,578 psi | 88% | 2477 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 56,144 psi | 90% | 2618 fps | 99.5% |
| Somchem S355 | <<locked>> | 84% | 54,375 psi | 87% | 2500 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 53,780 psi | 86% | 2516 fps | 97.7% |
| Somchem S365 | <<locked>> | 92% | 55,390 psi | 89% | 2579 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 53,548 psi | 86% | 2549 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 86% | 55,477 psi | 89% | 2474 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,128 psi | 87% | 2526 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 56,405 psi | 90% | 2579 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 82% | 56,086 psi | 90% | 2467 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 53,359 psi | 86% | 2536 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 54,505 psi | 87% | 2595 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 54,462 psi | 87% | 2657 fps | 98.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 50,111 psi | 80% | 2582 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 53,359 psi | 86% | 2493 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,680 psi | 89% | 2602 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 51,634 psi | 83% | 2690 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 53,403 psi | 86% | 2546 fps | 99.1% |
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 2700 | <<locked>> | 80% | 52,721 psi | 85% | 2457 fps | 99.4% |
| Accurate 3100 | <<locked>> | 80% | 30,168 psi | 48% | 2126 fps | 96% |
| Accurate 4064 | <<locked>> | 80% | 52,852 psi | 85% | 2438 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 40,799 psi | 65% | 2352 fps | 99.8% |
| Accurate High Country | <<locked>> | 86% | 40,045 psi | 64% | 2428 fps | 95.6% |
| Accurate MAGPRO | 63.1 gr | 90% | 43,366 psi | 70% | 2480 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 49,385 psi | 79% | 2425 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 36,869 psi | 59% | 2290 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 90% | 42,598 psi | 68% | 2434 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 98% | 40,524 psi | 65% | 2388 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 94% | 31,720 psi | 51% | 2247 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 37,057 psi | 59% | 2293 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,285 psi | 81% | 2448 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,537 psi | 63% | 2362 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,933 psi | 72% | 2464 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 36,709 psi | 59% | 2287 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 86% | 36,869 psi | 59% | 2333 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,182 psi | 47% | 2156 fps | 98.9% |
| Alliant Reloder-25 | <<locked>> | 84% | 29,066 psi | 47% | 2169 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 80% | 31,241 psi | 50% | 2264 fps | 97.9% |
| Bofors RP15 | <<locked>> | 88% | 36,579 psi | 59% | 2326 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 50,734 psi | 81% | 2457 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 38,580 psi | 62% | 2402 fps | 95.5% |
| Bofors RP5 | <<locked>> | 86% | 36,869 psi | 59% | 2333 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 44,498 psi | 71% | 2359 fps | 98.5% |
| Hodgdon H1000 | <<locked>> | 94% | 39,001 psi | 63% | 2362 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 50,995 psi | 82% | 2477 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 42,612 psi | 68% | 2395 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 80% | 45,440 psi | 73% | 2408 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 88% | 42,496 psi | 68% | 2385 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 90% | 44,672 psi | 72% | 2425 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,086 psi | 59% | 2260 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 92% | 36,492 psi | 59% | 2395 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 41,553 psi | 67% | 2415 fps | 98.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,601 psi | 44% | 1388 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,982 psi | 83% | 2451 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,871 psi | 64% | 2297 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,745 psi | 73% | 2382 fps | 99% |
| IMR 4831 | <<locked>> | 80% | 39,146 psi | 63% | 2310 fps | 99.6% |
| IMR 4955 Enduron | <<locked>> | 86% | 41,887 psi | 67% | 2336 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 90% | 40,770 psi | 65% | 2411 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 52,330 psi | 84% | 2448 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,352 psi | 70% | 2339 fps | 99.5% |
| Lovex S070 | <<locked>> | 80% | 41,669 psi | 67% | 2329 fps | 98.6% |
| Lovex S071 | <<locked>> | 84% | 29,704 psi | 48% | 2113 fps | 95.8% |
| Norma 203B | <<locked>> | 80% | 52,765 psi | 85% | 2493 fps | 100% |
| Norma 204 | <<locked>> | 80% | 39,581 psi | 63% | 2326 fps | 96.3% |
| Norma MRP | 55 gr | 80% | 31,401 psi | 50% | 2234 fps | 95% |
| Norma URP | <<locked>> | 80% | 40,495 psi | 65% | 2346 fps | 99.7% |
| Ramshot Grand | <<locked>> | 90% | 40,350 psi | 65% | 2415 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 39,247 psi | 63% | 2339 fps | 98.6% |
| Ramshot Magnum | <<locked>> | 88% | 33,359 psi | 53% | 2251 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,094 psi | 45% | 1421 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,879 psi | 82% | 2464 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,688 psi | 76% | 2503 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,669 psi | 65% | 2372 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,131 psi | 63% | 2385 fps | 99.4% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 33,228 psi | 53% | 2316 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 47,950 psi | 77% | 2415 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 40,756 psi | 65% | 2323 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 82% | 35,694 psi | 57% | 2270 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 44,498 psi | 71% | 2359 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,352 psi | 70% | 2339 fps | 99.5% |
| Shooters World Precision | <<locked>> | 80% | 52,330 psi | 84% | 2448 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,669 psi | 67% | 2329 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,139 psi | 79% | 2467 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,733 psi | 78% | 2313 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,264 psi | 68% | 2290 fps | 98.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 35,404 psi | 57% | 2264 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 48,008 psi | 77% | 2411 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 44,208 psi | 71% | 2365 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 36,941 psi | 59% | 2306 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,069 psi | 55% | 2208 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 80% | 45,919 psi | 74% | 2346 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,727 psi | 67% | 2339 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 84% | 33,605 psi | 54% | 2195 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 52,765 psi | 85% | 2428 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,234 psi | 66% | 2346 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 80% | 32,489 psi | 52% | 2221 fps | 98.9% |
| Vihtavuori N560 | 60.5 gr | 88% | 41,582 psi | 67% | 2441 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 94% | 40,872 psi | 66% | 2425 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,596 psi | 65% | 2310 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 42,830 psi | 69% | 2398 fps | 98.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,802 psi | 41% | 2156 fps | 98.8% |
| Winchester Supreme 780 | <<locked>> | 84% | 35,447 psi | 57% | 2241 fps | 95% |
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 85 powders for .300 H&H Mag. loaded with the .308 | 220gr | Lapua ScenarL. Alliant Reloder-26 delivers the highest muzzle velocity at 2,703 fps; across all powders the maximum-charge window runs from 1,555 fps to 2,703 fps. ADI AR 2217 gives the best case fill at 100 %, and 85 of the 85 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.308" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-23 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. Vihtavuori N560, Norma MRP, Accurate MAGPRO rank at the top here: for .300 H&H Mag. with the .308 | 220gr | Lapua ScenarL 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.