Load Specifications
Load data in caliber .300 H&H Mag. with .308 | 220gr | Alaska Bullet Works Kodiak PP SPBC bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Vihtavuori N560 and Norma MRP.
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% | 53,229 psi | 85% | 2543 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 55,158 psi | 88% | 2575 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 55,230 psi | 89% | 2680 fps | 98% |
| ADI AR 2208 | <<locked>> | 82% | 53,650 psi | 86% | 2493 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,753 psi | 89% | 2625 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 96% | 53,345 psi | 86% | 2625 fps | 98.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 44,599 psi | 72% | 2477 fps | 96.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,465 psi | 63% | 2441 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,650 psi | 88% | 2513 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 56,028 psi | 90% | 2625 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 53,432 psi | 86% | 2592 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 55,361 psi | 89% | 2618 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 96% | 52,895 psi | 85% | 2625 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 98% | 53,780 psi | 86% | 2598 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,545 psi | 79% | 2602 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,766 psi | 86% | 2680 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 98% | 55,738 psi | 89% | 2595 fps | 96.1% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,492 psi | 89% | 2661 fps | 99.5% |
| Bofors RP3 | <<locked>> | 82% | 55,521 psi | 89% | 2530 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,527 psi | 73% | 2543 fps | 97.7% |
| Bofors RP5 | <<locked>> | 96% | 52,895 psi | 85% | 2625 fps | 99.3% |
| Bofors RP7 | <<locked>> | 86% | 54,839 psi | 88% | 2530 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,081 psi | 79% | 2556 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 82% | 55,608 psi | 89% | 2546 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 53,534 psi | 86% | 2579 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 52,910 psi | 85% | 2536 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 94% | 53,577 psi | 86% | 2572 fps | 97.9% |
| Hodgdon H4831 SC | <<locked>> | 96% | 55,970 psi | 90% | 2608 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 56,318 psi | 90% | 2552 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,704 psi | 78% | 2654 fps | 99.5% |
| Hodgdon Superformance | <<locked>> | 86% | 53,388 psi | 86% | 2612 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,854 psi | 59% | 1565 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,883 psi | 90% | 2562 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 86% | 56,115 psi | 90% | 2549 fps | 99.9% |
| IMR 4831 | <<locked>> | 90% | 55,361 psi | 89% | 2566 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,911 psi | 88% | 2559 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 98% | 54,491 psi | 87% | 2657 fps | 98.8% |
| Lovex S065 | <<locked>> | 86% | 53,345 psi | 86% | 2500 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 54,505 psi | 87% | 2543 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,633 psi | 81% | 2510 fps | 100% |
| Norma 204 | <<locked>> | 88% | 53,040 psi | 85% | 2562 fps | 99.1% |
| Norma 217ᴾ | <<locked>> | 100% | 34,998 psi | 56% | 2372 fps | 96.5% |
| Norma MRP | <<locked>> | 96% | 56,217 psi | 90% | 2694 fps | 100% |
| Norma URP | <<locked>> | 88% | 53,621 psi | 86% | 2559 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,288 psi | 89% | 2677 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 90% | 55,869 psi | 90% | 2612 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,171 psi | 85% | 2618 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,753 psi | 61% | 1604 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,535 psi | 89% | 2539 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 52,707 psi | 85% | 2579 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,853 psi | 88% | 2598 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 53,214 psi | 85% | 2625 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,776 psi | 78% | 2654 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 84% | 55,912 psi | 90% | 2530 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 53,751 psi | 86% | 2546 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 94% | 54,723 psi | 88% | 2605 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 86% | 54,839 psi | 88% | 2530 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 53,345 psi | 86% | 2500 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 54,505 psi | 87% | 2543 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 53,577 psi | 86% | 2533 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 56,159 psi | 90% | 2411 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,956 psi | 90% | 2507 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,302 psi | 87% | 2602 fps | 99.4% |
| Somchem S355 | <<locked>> | 84% | 55,477 psi | 89% | 2520 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,332 psi | 89% | 2546 fps | 98.1% |
| Somchem S365 | <<locked>> | 90% | 53,519 psi | 86% | 2562 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,085 psi | 88% | 2579 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 84% | 53,403 psi | 86% | 2454 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,666 psi | 89% | 2552 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,607 psi | 88% | 2562 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 88% | 54,752 psi | 88% | 2559 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 56,246 psi | 90% | 2621 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 56,260 psi | 90% | 2694 fps | 98.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,054 psi | 83% | 2618 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,882 psi | 88% | 2520 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 53,534 psi | 86% | 2579 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,954 psi | 87% | 2720 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,100 psi | 88% | 2579 fps | 99.4% |
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% | 31,256 psi | 50% | 2156 fps | 96.6% |
| Accurate 4350 | <<locked>> | 80% | 42,192 psi | 68% | 2382 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 90% | 44,802 psi | 72% | 2510 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 50,488 psi | 81% | 2448 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 35,418 psi | 57% | 2267 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 88% | 40,886 psi | 66% | 2408 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 96% | 39,131 psi | 63% | 2369 fps | 95% |
| ADI AR 2225 | <<locked>> | 94% | 32,677 psi | 52% | 2280 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,459 psi | 83% | 2470 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,625 psi | 65% | 2388 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,340 psi | 74% | 2490 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 35,346 psi | 57% | 2264 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 84% | 35,607 psi | 57% | 2310 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,052 psi | 48% | 2182 fps | 99.2% |
| Alliant Reloder-25 | <<locked>> | 82% | 28,007 psi | 45% | 2142 fps | 95.6% |
| Alliant Reloder-26 | 58.2 gr | 80% | 32,213 psi | 52% | 2293 fps | 98.3% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 52,286 psi | 84% | 2539 fps | 95.3% |
| Bofors RP15 | <<locked>> | 86% | 35,346 psi | 57% | 2303 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 52,214 psi | 84% | 2484 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 37,449 psi | 60% | 2385 fps | 95.2% |
| Bofors RP5 | <<locked>> | 84% | 35,607 psi | 57% | 2310 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 45,498 psi | 73% | 2385 fps | 98.8% |
| Hodgdon H1000 | <<locked>> | 92% | 37,536 psi | 60% | 2339 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 52,083 psi | 84% | 2497 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,888 psi | 70% | 2425 fps | 99% |
| Hodgdon H4350 | <<locked>> | 80% | 46,673 psi | 75% | 2438 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 88% | 43,743 psi | 70% | 2415 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 88% | 42,873 psi | 69% | 2398 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,203 psi | 61% | 2283 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 35,331 psi | 57% | 2375 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 42,888 psi | 69% | 2444 fps | 98.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,717 psi | 44% | 1398 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,017 psi | 66% | 2323 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,717 psi | 75% | 2405 fps | 99.2% |
| IMR 4831 | <<locked>> | 80% | 40,234 psi | 65% | 2333 fps | 99.8% |
| IMR 4955 Enduron | <<locked>> | 86% | 42,859 psi | 69% | 2362 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 88% | 39,175 psi | 63% | 2385 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 44,367 psi | 71% | 2362 fps | 99.6% |
| Lovex S070 | <<locked>> | 80% | 42,699 psi | 68% | 2352 fps | 98.9% |
| Lovex S071 | <<locked>> | 82% | 28,718 psi | 46% | 2093 fps | 95.5% |
| Norma 204 | <<locked>> | 80% | 40,538 psi | 65% | 2352 fps | 96.7% |
| Norma 217 | <<locked>> | 98% | 32,750 psi | 53% | 2316 fps | 95.5% |
| Norma MRP | 56.5 gr | 80% | 32,387 psi | 52% | 2264 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 41,568 psi | 67% | 2369 fps | 99.8% |
| Ramshot Grand | <<locked>> | 88% | 38,885 psi | 62% | 2395 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 40,248 psi | 65% | 2365 fps | 98.9% |
| Ramshot Magnum | <<locked>> | 88% | 34,519 psi | 55% | 2287 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,210 psi | 45% | 1430 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,837 psi | 83% | 2487 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,168 psi | 79% | 2530 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,974 psi | 67% | 2398 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,234 psi | 65% | 2411 fps | 99.7% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 32,097 psi | 51% | 2293 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 49,168 psi | 79% | 2438 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 39,117 psi | 63% | 2297 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 80% | 34,592 psi | 55% | 2247 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 45,498 psi | 73% | 2385 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,367 psi | 71% | 2362 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 80% | 42,699 psi | 68% | 2352 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,198 psi | 80% | 2487 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,661 psi | 80% | 2329 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,410 psi | 70% | 2316 fps | 98.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 34,272 psi | 55% | 2244 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 49,153 psi | 79% | 2434 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 42,525 psi | 68% | 2343 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 38,290 psi | 61% | 2333 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,186 psi | 56% | 2238 fps | 96.3% |
| Vihtavuori N150 | <<locked>> | 80% | 47,007 psi | 75% | 2365 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,004 psi | 69% | 2365 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 34,592 psi | 55% | 2221 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 42,235 psi | 68% | 2369 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 33,562 psi | 54% | 2247 fps | 99.2% |
| Vihtavuori N560 | 62.2 gr | 88% | 43,004 psi | 69% | 2474 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 92% | 39,682 psi | 64% | 2405 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,829 psi | 67% | 2336 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,888 psi | 70% | 2425 fps | 99% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,527 psi | 43% | 2185 fps | 99.2% |
| Winchester Supreme 780 | <<locked>> | 84% | 36,608 psi | 59% | 2270 fps | 95.6% |
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 H&H Mag. loaded with the .308 | 220gr | Alaska Bullet Works Kodiak PP SPBC. Winchester StaBALL HD delivers the highest muzzle velocity at 2,720 fps; across all powders the maximum-charge window runs from 1,565 fps to 2,720 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 (430 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.308" calls for a 1:13.0 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. Alliant Reloder-26, Vihtavuori N560, Norma MRP rank at the top here: for .300 H&H Mag. with the .308 | 220gr | Alaska Bullet Works Kodiak PP SPBC 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.