Load Specifications
Load data in caliber .300 H&H Mag. with .308 | 240gr | Woodleigh PP SN bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate High Country, Alliant Reloder-26 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>> | 96% | 56,405 psi | 90% | 2470 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 54,650 psi | 88% | 2451 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 54,027 psi | 87% | 2559 fps | 99.4% |
| Accurate MAGPRO | <<locked>> | 94% | 55,042 psi | 88% | 2566 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 82% | 55,941 psi | 90% | 2408 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 55,071 psi | 88% | 2503 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 96% | 56,362 psi | 90% | 2559 fps | 99.4% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 47,253 psi | 76% | 2425 fps | 98.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,989 psi | 67% | 2395 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 55,448 psi | 89% | 2503 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 88% | 55,492 psi | 89% | 2497 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 52,808 psi | 85% | 2464 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 54,766 psi | 88% | 2497 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 96% | 56,173 psi | 90% | 2556 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 96% | 53,911 psi | 86% | 2480 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 52,765 psi | 85% | 2533 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 53,853 psi | 86% | 2562 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 54,752 psi | 88% | 2480 fps | 96.9% |
| Bofors RP15 | <<locked>> | 98% | 55,347 psi | 89% | 2543 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 48,834 psi | 78% | 2487 fps | 99% |
| Bofors RP5 | <<locked>> | 96% | 56,173 psi | 90% | 2556 fps | 99.9% |
| Bofors RP7 | <<locked>> | 84% | 53,751 psi | 86% | 2405 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 52,069 psi | 83% | 2500 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 86% | 56,347 psi | 90% | 2503 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 55,637 psi | 89% | 2464 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 92% | 52,765 psi | 85% | 2454 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 94% | 55,405 psi | 89% | 2490 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 55,753 psi | 89% | 2428 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,895 psi | 83% | 2598 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 52,518 psi | 84% | 2484 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,086 psi | 59% | 1496 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 55,172 psi | 88% | 2441 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 84% | 55,274 psi | 89% | 2425 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 54,868 psi | 88% | 2441 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 54,099 psi | 87% | 2441 fps | 98.8% |
| IMR 7828 SSC | <<locked>> | 96% | 54,186 psi | 87% | 2543 fps | 99.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 37,652 psi | 60% | 2310 fps | 96.2% |
| Lovex S065 | <<locked>> | 86% | 55,680 psi | 89% | 2421 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 53,983 psi | 87% | 2425 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,940 psi | 86% | 2441 fps | 100% |
| Norma 204 | <<locked>> | 88% | 55,883 psi | 90% | 2490 fps | 99.8% |
| Norma 217ᴾ | <<locked>> | 100% | 37,521 psi | 60% | 2333 fps | 98.4% |
| Norma MRP | <<locked>> | 94% | 55,985 psi | 90% | 2575 fps | 100% |
| Norma URP | <<locked>> | 86% | 53,243 psi | 85% | 2438 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 54,897 psi | 88% | 2562 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 88% | 55,303 psi | 89% | 2490 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 52,765 psi | 85% | 2503 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,826 psi | 61% | 1532 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 56,144 psi | 90% | 2497 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 54,375 psi | 87% | 2474 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 56,333 psi | 90% | 2546 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 52,141 psi | 84% | 2598 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 46,833 psi | 75% | 2497 fps | 97.4% |
| Rottweil R 903 | <<locked>> | 82% | 54,998 psi | 88% | 2402 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 53,098 psi | 85% | 2431 fps | 99% |
| Rottweil R 905 | <<locked>> | 92% | 54,201 psi | 87% | 2487 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 84% | 53,751 psi | 86% | 2405 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 55,680 psi | 89% | 2421 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 53,983 psi | 87% | 2425 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 56,391 psi | 90% | 2454 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,201 psi | 89% | 2287 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 54,984 psi | 88% | 2385 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 53,766 psi | 86% | 2480 fps | 99.8% |
| Somchem S355 | <<locked>> | 82% | 54,694 psi | 88% | 2395 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 54,491 psi | 87% | 2428 fps | 98.7% |
| Somchem S365 | <<locked>> | 88% | 53,272 psi | 85% | 2438 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 54,578 psi | 88% | 2461 fps | 100% |
| Vihtavuori N150 | <<locked>> | 84% | 56,028 psi | 90% | 2372 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 54,940 psi | 88% | 2428 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 53,998 psi | 87% | 2444 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 53,969 psi | 87% | 2434 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 56,246 psi | 90% | 2503 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 55,927 psi | 90% | 2575 fps | 99.2% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 55,405 psi | 89% | 2556 fps | 99.3% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 48,443 psi | 78% | 2503 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 54,056 psi | 87% | 2395 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 56,347 psi | 90% | 2503 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 54,505 psi | 87% | 2602 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 54,375 psi | 87% | 2457 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% | 33,272 psi | 53% | 2106 fps | 98.1% |
| Accurate 4350 | <<locked>> | 80% | 44,672 psi | 72% | 2313 fps | 100% |
| Accurate High Country | 55.5 gr | 80% | 35,810 psi | 57% | 2244 fps | 95.4% |
| Accurate MAGPRO | <<locked>> | 86% | 41,640 psi | 67% | 2352 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 52,634 psi | 84% | 2365 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 37,304 psi | 60% | 2211 fps | 96.9% |
| ADI AR 2213 | <<locked>> | 84% | 38,029 psi | 61% | 2254 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 92% | 36,405 psi | 58% | 2221 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 88% | 28,732 psi | 46% | 2090 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 37,652 psi | 60% | 2215 fps | 97% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,844 psi | 69% | 2320 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 49,255 psi | 79% | 2418 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,304 psi | 60% | 2208 fps | 96.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 33,170 psi | 53% | 2162 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,894 psi | 51% | 2129 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 27,876 psi | 45% | 2054 fps | 96.8% |
| Alliant Reloder-26 | 57.2 gr | 80% | 34,621 psi | 56% | 2251 fps | 99.6% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 48,515 psi | 78% | 2382 fps | 95.4% |
| Bofors RP15 | <<locked>> | 82% | 32,953 psi | 53% | 2156 fps | 95.4% |
| Bofors RP30 | <<locked>> | 90% | 35,157 psi | 56% | 2238 fps | 95.6% |
| Bofors RP5 | <<locked>> | 80% | 33,170 psi | 53% | 2162 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 47,514 psi | 76% | 2313 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 88% | 34,882 psi | 56% | 2188 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 80% | 46,325 psi | 74% | 2359 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 80% | 48,965 psi | 79% | 2369 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 82% | 37,942 psi | 61% | 2208 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 84% | 39,856 psi | 64% | 2244 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,538 psi | 65% | 2218 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 32,967 psi | 53% | 2224 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 45,556 psi | 73% | 2382 fps | 99.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,746 psi | 44% | 1332 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,018 psi | 69% | 2260 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,979 psi | 79% | 2336 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 42,670 psi | 68% | 2270 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 37,362 psi | 60% | 2162 fps | 95% |
| IMR 7828 SSC | <<locked>> | 84% | 36,477 psi | 58% | 2231 fps | 95.2% |
| IMR 8133 Enduron | <<locked>> | 98% | 35,346 psi | 57% | 2260 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 46,412 psi | 74% | 2290 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 44,759 psi | 72% | 2287 fps | 99.6% |
| Lovex S071 | <<locked>> | 80% | 28,747 psi | 46% | 2005 fps | 96.6% |
| Norma 204 | <<locked>> | 80% | 42,801 psi | 69% | 2293 fps | 98.1% |
| Norma 217 | <<locked>> | 94% | 31,038 psi | 50% | 2182 fps | 96% |
| Norma MRP | <<locked>> | 80% | 34,490 psi | 55% | 2218 fps | 97.6% |
| Norma URP | <<locked>> | 80% | 43,859 psi | 70% | 2303 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 35,926 psi | 58% | 2238 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 42,598 psi | 68% | 2300 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 84% | 32,010 psi | 51% | 2139 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,485 psi | 46% | 1368 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 52,272 psi | 84% | 2451 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,367 psi | 71% | 2333 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,714 psi | 68% | 2349 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 29,820 psi | 48% | 2149 fps | 95.6% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 40,683 psi | 65% | 2385 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 80% | 51,648 psi | 83% | 2359 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 38,667 psi | 62% | 2192 fps | 96.1% |
| Rottweil R 905 | <<locked>> | 80% | 36,622 psi | 59% | 2195 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 80% | 47,514 psi | 76% | 2313 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,412 psi | 74% | 2290 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 44,759 psi | 72% | 2287 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 52,808 psi | 85% | 2408 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,880 psi | 83% | 2247 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,426 psi | 73% | 2247 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,303 psi | 58% | 2192 fps | 96.8% |
| Somchem S355 | <<locked>> | 80% | 51,416 psi | 82% | 2352 fps | 100% |
| Somchem S361 | <<locked>> | 80% | 39,291 psi | 63% | 2188 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 40,799 psi | 65% | 2264 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,217 psi | 60% | 2182 fps | 97.8% |
| Vihtavuori N150 | <<locked>> | 80% | 49,240 psi | 79% | 2290 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,295 psi | 73% | 2297 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 32,184 psi | 52% | 2077 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 44,730 psi | 72% | 2303 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 35,926 psi | 58% | 2195 fps | 99.9% |
| Vihtavuori N560 | <<locked>> | 82% | 37,289 psi | 60% | 2260 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 88% | 37,115 psi | 60% | 2254 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 96% | 42,235 psi | 68% | 2395 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,048 psi | 71% | 2264 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,325 psi | 74% | 2359 fps | 99.7% |
| Winchester StaBALL HD | 54.9 gr | 80% | 28,268 psi | 45% | 2149 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 33,808 psi | 54% | 2116 fps | 95.7% |
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 79 powders for .300 H&H Mag. loaded with the .308 | 240gr | Woodleigh PP SN. Winchester StaBALL HD delivers the highest muzzle velocity at 2,602 fps; across all powders the maximum-charge window runs from 1,496 fps to 2,602 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 (430 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 240.0 gr projectile in 0.308" calls for a 1:12.5 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. Accurate High Country, Alliant Reloder-26, Winchester StaBALL HD rank at the top here: for .300 H&H Mag. with the .308 | 240gr | Woodleigh PP SN 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.