Load Specifications
Load data in caliber .300 H&H Mag. with .308 | 90gr | Impala LWHV LS bullet and 76 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Ramshot Big Game and Hodgdon LEVERevolution.
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 2015 | <<locked>> | 88% | 54,114 psi | 87% | 3635 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 52,939 psi | 85% | 3635 fps | 99.3% |
| Accurate 2495 | <<locked>> | 92% | 52,910 psi | 85% | 3648 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 54,520 psi | 87% | 3701 fps | 99.2% |
| Accurate 4064 | <<locked>> | 96% | 55,811 psi | 89% | 3737 fps | 99.8% |
| Accurate LT-30 | <<locked>> | 84% | 56,304 psi | 90% | 3629 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 53,272 psi | 85% | 3586 fps | 99.1% |
| ADI AR 2206H | <<locked>> | 90% | 53,156 psi | 85% | 3684 fps | 96.5% |
| ADI AR 2208 | <<locked>> | 96% | 54,041 psi | 87% | 3671 fps | 95.9% |
| ADI AR 2219 | <<locked>> | 82% | 53,693 psi | 86% | 3698 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 90% | 55,492 psi | 89% | 3704 fps | 98.1% |
| Alliant AR-Comp | <<locked>> | 90% | 55,042 psi | 88% | 3727 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 53,171 psi | 85% | 3773 fps | 97% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 56,101 psi | 90% | 3848 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 53,374 psi | 86% | 3698 fps | 97.5% |
| Alliant Reloder-10x | <<locked>> | 84% | 53,722 psi | 86% | 3661 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 54,331 psi | 87% | 3720 fps | 96.2% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 54,491 psi | 87% | 3802 fps | 97.4% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 55,970 psi | 90% | 3599 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 56,347 psi | 90% | 3747 fps | 96% |
| Bofors RP3 | <<locked>> | 96% | 54,230 psi | 87% | 3717 fps | 97.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 54,462 psi | 87% | 3642 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 90% | 54,955 psi | 88% | 3730 fps | 98.6% |
| Hodgdon CFE223 | <<locked>> | 88% | 56,231 psi | 90% | 3835 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 86% | 56,043 psi | 90% | 3740 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 84% | 53,867 psi | 86% | 3691 fps | 99.5% |
| Hodgdon H4895 | <<locked>> | 90% | 53,548 psi | 86% | 3701 fps | 97.2% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 55,695 psi | 89% | 3789 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,664 psi | 56% | 2415 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 54,723 psi | 88% | 3707 fps | 97.4% |
| IMR 3031 | <<locked>> | 92% | 55,796 psi | 89% | 3786 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 53,447 psi | 86% | 3655 fps | 96% |
| IMR 4198 | <<locked>> | 86% | 56,289 psi | 90% | 3675 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 55,622 psi | 89% | 3766 fps | 97.1% |
| IMR 8208 XBR | <<locked>> | 90% | 55,492 psi | 89% | 3704 fps | 98.1% |
| Lovex D073.5 | <<locked>> | 84% | 52,997 psi | 85% | 3635 fps | 98.5% |
| Lovex D073.6 | <<locked>> | 92% | 56,202 psi | 90% | 3740 fps | 99.4% |
| Lovex S060 | <<locked>> | 92% | 56,318 psi | 90% | 3675 fps | 97.2% |
| Lovex S062 | <<locked>> | 94% | 53,243 psi | 85% | 3665 fps | 97.9% |
| Norma 201 | <<locked>> | 92% | 55,579 psi | 89% | 3701 fps | 98.2% |
| Norma 202 | <<locked>> | 92% | 55,622 psi | 89% | 3717 fps | 99.7% |
| Norma 203B | <<locked>> | 94% | 53,476 psi | 86% | 3707 fps | 96.6% |
| Ramshot Big Game | <<locked>> | 94% | 53,795 psi | 86% | 3720 fps | 96.5% |
| Ramshot Wild Boar | <<locked>> | 90% | 55,738 psi | 89% | 3730 fps | 97% |
| Ramshot X-Terminator | <<locked>> | 86% | 53,751 psi | 86% | 3635 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,012 psi | 56% | 2470 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 55,172 psi | 88% | 3704 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 53,737 psi | 86% | 3793 fps | 95.9% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 53,998 psi | 87% | 3822 fps | 99.3% |
| Rottweil R 901 | <<locked>> | 88% | 53,751 psi | 86% | 3658 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 94% | 55,999 psi | 90% | 3694 fps | 98.2% |
| Rottweil R 903 | <<locked>> | 98% | 53,911 psi | 86% | 3698 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 92% | 56,202 psi | 90% | 3740 fps | 99.4% |
| Shooters World Precision | <<locked>> | 94% | 53,243 psi | 85% | 3665 fps | 97.9% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 55,259 psi | 89% | 3655 fps | 97.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 56,420 psi | 90% | 3376 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 54,534 psi | 87% | 3704 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 55,448 psi | 89% | 3760 fps | 96.9% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 53,882 psi | 86% | 3675 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 55,027 psi | 88% | 3704 fps | 96.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 53,896 psi | 86% | 3602 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 53,417 psi | 86% | 3579 fps | 99.9% |
| Somchem S321 | <<locked>> | 86% | 53,911 psi | 86% | 3684 fps | 98.2% |
| Somchem S335 | <<locked>> | 90% | 53,301 psi | 85% | 3593 fps | 99.8% |
| Somchem S341 | <<locked>> | 90% | 54,085 psi | 87% | 3661 fps | 96.6% |
| Somchem S355 | <<locked>> | 98% | 54,418 psi | 87% | 3701 fps | 97.3% |
| Vihtavuori N130 | <<locked>> | 86% | 53,621 psi | 86% | 3589 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 53,592 psi | 86% | 3596 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 54,578 psi | 88% | 3684 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 56,086 psi | 90% | 3688 fps | 99.8% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 56,115 psi | 90% | 3688 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 90% | 56,420 psi | 90% | 3711 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 94% | 54,737 psi | 88% | 3675 fps | 99.6% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 51,256 psi | 82% | 3576 fps | 96.8% |
| Winchester 748 | <<locked>> | 90% | 55,593 psi | 89% | 3760 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 92% | 54,737 psi | 88% | 3714 fps | 97.5% |
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 2015 | <<locked>> | 80% | 42,670 psi | 68% | 3399 fps | 99.5% |
| Accurate 2460 | <<locked>> | 80% | 46,514 psi | 75% | 3501 fps | 98.3% |
| Accurate 2495 | <<locked>> | 80% | 36,274 psi | 58% | 3274 fps | 98.6% |
| Accurate 2520 | <<locked>> | 80% | 41,669 psi | 67% | 3422 fps | 96.8% |
| Accurate 4064 | <<locked>> | 80% | 34,229 psi | 55% | 3228 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 50,009 psi | 80% | 3507 fps | 99.7% |
| Accurate LT-32 | <<locked>> | 80% | 50,270 psi | 81% | 3527 fps | 98.7% |
| ADI AR 2206H | <<locked>> | 88% | 49,995 psi | 80% | 3619 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 94% | 50,821 psi | 81% | 3606 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 50,183 psi | 80% | 3629 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 43,453 psi | 70% | 3442 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 39,465 psi | 63% | 3419 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 46,688 psi | 75% | 3629 fps | 95.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 52,475 psi | 84% | 3770 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 44,411 psi | 71% | 3501 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,630 psi | 76% | 3543 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 51,082 psi | 82% | 3655 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 96% | 47,543 psi | 76% | 3645 fps | 95.4% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 49,371 psi | 79% | 3481 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 52,823 psi | 85% | 3675 fps | 95.2% |
| Bofors RP3 | <<locked>> | 90% | 44,715 psi | 72% | 3514 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,786 psi | 69% | 3386 fps | 95.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 42,192 psi | 68% | 3451 fps | 95.7% |
| Hodgdon CFE223 | <<locked>> | 86% | 52,417 psi | 84% | 3757 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 46,151 psi | 74% | 3540 fps | 99.1% |
| Hodgdon H335 | <<locked>> | 80% | 47,079 psi | 75% | 3550 fps | 98.6% |
| Hodgdon H4895 | <<locked>> | 86% | 47,268 psi | 76% | 3566 fps | 95.6% |
| Hodgdon LEVERevolution | 70.6 gr | 88% | 45,730 psi | 73% | 3573 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,831 psi | 41% | 2172 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 45,397 psi | 73% | 3501 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 37,884 psi | 61% | 3392 fps | 98.1% |
| IMR 4064 | <<locked>> | 92% | 50,314 psi | 81% | 3593 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 47,355 psi | 76% | 3510 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 48,994 psi | 79% | 3629 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 82% | 43,453 psi | 70% | 3442 fps | 95.3% |
| Lovex D073.5 | <<locked>> | 80% | 46,412 psi | 74% | 3497 fps | 97.2% |
| Lovex D073.6 | <<locked>> | 80% | 37,797 psi | 61% | 3327 fps | 95.4% |
| Lovex S060 | <<locked>> | 86% | 47,384 psi | 76% | 3488 fps | 95.1% |
| Lovex S062 | <<locked>> | 86% | 41,974 psi | 67% | 3409 fps | 95% |
| Norma 201 | <<locked>> | 84% | 43,700 psi | 70% | 3445 fps | 95.5% |
| Norma 202 | <<locked>> | 80% | 38,290 psi | 61% | 3330 fps | 96.5% |
| Norma 203B | <<locked>> | 90% | 47,152 psi | 76% | 3573 fps | 95% |
| Ramshot Big Game | 75.3 gr | 92% | 50,459 psi | 81% | 3648 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 86% | 48,805 psi | 78% | 3589 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 84% | 50,546 psi | 81% | 3566 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,063 psi | 42% | 2224 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,571 psi | 73% | 3497 fps | 97.4% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 50,125 psi | 80% | 3714 fps | 95% |
| ReloadSwiss RS 60 | 72.5 gr | 90% | 41,727 psi | 67% | 3517 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 80% | 42,757 psi | 69% | 3412 fps | 97.4% |
| Rottweil R 902 | <<locked>> | 86% | 44,193 psi | 71% | 3445 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 92% | 44,556 psi | 71% | 3497 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,797 psi | 61% | 3327 fps | 95.4% |
| Shooters World Precision | <<locked>> | 86% | 41,974 psi | 67% | 3409 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 48,269 psi | 77% | 3510 fps | 96.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 53,490 psi | 86% | 3330 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 50,966 psi | 82% | 3629 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 48,704 psi | 78% | 3619 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,688 psi | 76% | 3550 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 48,428 psi | 78% | 3570 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,871 psi | 64% | 3291 fps | 97% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,851 psi | 53% | 3100 fps | 95.8% |
| Somchem S321 | <<locked>> | 80% | 44,092 psi | 71% | 3471 fps | 95.9% |
| Somchem S335 | <<locked>> | 80% | 39,639 psi | 64% | 3291 fps | 97.7% |
| Somchem S341 | <<locked>> | 88% | 50,444 psi | 81% | 3586 fps | 95.7% |
| Somchem S355 | <<locked>> | 92% | 45,281 psi | 73% | 3504 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 44,831 psi | 72% | 3415 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 80% | 39,668 psi | 64% | 3304 fps | 99% |
| Vihtavuori N135 | <<locked>> | 80% | 35,302 psi | 57% | 3258 fps | 98.3% |
| Vihtavuori N140 | <<locked>> | 80% | 36,260 psi | 58% | 3245 fps | 96.2% |
| Vihtavuori N150 | <<locked>> | 90% | 40,828 psi | 65% | 3363 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 82% | 43,642 psi | 70% | 3442 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 35,230 psi | 56% | 3222 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 48,037 psi | 77% | 3510 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 39,682 psi | 64% | 3402 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 44,802 psi | 72% | 3501 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 95 powders for .300 H&H Mag. loaded with the .308 | 90gr | Impala LWHV LS. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,848 fps; across all powders the maximum-charge window runs from 2,415 fps to 3,848 fps. Accurate 4350 gives the best case fill at 100 %, and 95 of the 95 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. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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. ReloadSwiss RS 60, Ramshot Big Game, Hodgdon LEVERevolution rank at the top here: for .300 H&H Mag. with the .308 | 90gr | Impala LWHV LS they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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.