Load Specifications
Load data in caliber .300 H&H Mag. with .308 | 130gr | Impala LWHV LS bullet and 84 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and Alliant Reloder-17.
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.
A valid access license is required to use the Personalized Load Calculator.
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>> | 84% | 55,332 psi | 89% | 3107 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 54,839 psi | 88% | 3136 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,666 psi | 89% | 3192 fps | 100% |
| Accurate 4064 | <<locked>> | 90% | 54,708 psi | 88% | 3179 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 53,403 psi | 86% | 3232 fps | 98.2% |
| ADI AR 2206H | <<locked>> | 86% | 54,099 psi | 87% | 3192 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 92% | 54,781 psi | 88% | 3182 fps | 98.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,333 psi | 90% | 3199 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 84% | 53,476 psi | 86% | 3133 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 53,011 psi | 85% | 3294 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 54,926 psi | 88% | 3212 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,405 psi | 89% | 3232 fps | 99% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,128 psi | 87% | 3284 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 96% | 55,564 psi | 89% | 3333 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,624 psi | 64% | 2986 fps | 96.6% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 53,476 psi | 86% | 3192 fps | 98.3% |
| Bofors RP3 | <<locked>> | 92% | 55,898 psi | 90% | 3232 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,650 psi | 88% | 3127 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 86% | 56,043 psi | 90% | 3232 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 53,505 psi | 86% | 3261 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 90% | 53,214 psi | 85% | 3176 fps | 97.6% |
| Hodgdon H414 | <<locked>> | 98% | 55,767 psi | 89% | 3274 fps | 96% |
| Hodgdon H4895 | <<locked>> | 86% | 54,578 psi | 88% | 3205 fps | 99.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,502 psi | 81% | 3153 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 53,563 psi | 86% | 3232 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,563 psi | 57% | 2005 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,535 psi | 89% | 3202 fps | 99.5% |
| IMR 3031 | <<locked>> | 86% | 54,288 psi | 87% | 3202 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 54,273 psi | 87% | 3166 fps | 98.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 53,621 psi | 86% | 3219 fps | 98.3% |
| IMR 4895 | <<locked>> | 88% | 53,606 psi | 86% | 3212 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 86% | 56,333 psi | 90% | 3199 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 86% | 54,027 psi | 87% | 3173 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 53,621 psi | 86% | 3114 fps | 99.1% |
| Lovex S062 | <<locked>> | 90% | 54,723 psi | 88% | 3176 fps | 99.8% |
| Lovex S065 | <<locked>> | 96% | 53,925 psi | 86% | 3159 fps | 97% |
| Lovex S070 | <<locked>> | 98% | 54,781 psi | 88% | 3192 fps | 96% |
| Norma 201 | <<locked>> | 86% | 53,359 psi | 86% | 3143 fps | 99.7% |
| Norma 202 | <<locked>> | 86% | 53,417 psi | 86% | 3146 fps | 100% |
| Norma 203B | <<locked>> | 90% | 54,694 psi | 88% | 3219 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 55,434 psi | 89% | 3271 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 90% | 54,926 psi | 88% | 3238 fps | 99.2% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 54,288 psi | 87% | 3255 fps | 96.7% |
| Ramshot TAC | <<locked>> | 84% | 53,142 psi | 85% | 3140 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 86% | 56,347 psi | 90% | 3232 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 82% | 53,795 psi | 86% | 3133 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,187 psi | 58% | 2054 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 55,666 psi | 89% | 3176 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 53,577 psi | 86% | 3150 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 55,492 psi | 89% | 3301 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 55,085 psi | 88% | 3337 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 56,246 psi | 90% | 3304 fps | 98.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 56,144 psi | 90% | 3327 fps | 98% |
| Rottweil R 901 | <<locked>> | 84% | 54,839 psi | 88% | 3140 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 53,896 psi | 86% | 3140 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 94% | 55,651 psi | 89% | 3219 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 96% | 53,925 psi | 86% | 3159 fps | 97% |
| Shooters World Match Rifle | <<locked>> | 86% | 54,027 psi | 87% | 3173 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 54,723 psi | 88% | 3176 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 98% | 54,781 psi | 88% | 3192 fps | 96% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 53,287 psi | 85% | 3215 fps | 99% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,405 psi | 89% | 3182 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 55,564 psi | 89% | 3209 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 54,288 psi | 87% | 3081 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 54,389 psi | 87% | 3074 fps | 100% |
| Somchem S321 | <<locked>> | 82% | 54,186 psi | 87% | 3173 fps | 99.8% |
| Somchem S335 | <<locked>> | 86% | 54,070 psi | 87% | 3081 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 54,621 psi | 88% | 3173 fps | 99.2% |
| Somchem S355 | <<locked>> | 94% | 55,883 psi | 90% | 3215 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,053 psi | 80% | 3219 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 82% | 54,041 psi | 87% | 3051 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 54,259 psi | 87% | 3068 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,405 psi | 90% | 3163 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 53,766 psi | 86% | 3120 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 53,737 psi | 86% | 3140 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 98% | 54,578 psi | 88% | 3209 fps | 98.2% |
| Vihtavuori N530 | <<locked>> | 84% | 53,374 psi | 86% | 3140 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 90% | 55,434 psi | 89% | 3163 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 53,954 psi | 87% | 3215 fps | 98% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,946 psi | 69% | 3074 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 55,187 psi | 88% | 3189 fps | 99.7% |
| Winchester 748 | <<locked>> | 84% | 53,069 psi | 85% | 3189 fps | 99.9% |
| Winchester 760 | <<locked>> | 98% | 55,767 psi | 89% | 3274 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 88% | 55,680 psi | 89% | 3222 fps | 99.6% |
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% | 49,110 psi | 79% | 3005 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,975 psi | 69% | 2930 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,689 psi | 78% | 3071 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 40,567 psi | 65% | 2913 fps | 99.6% |
| Accurate 4350 | <<locked>> | 90% | 40,973 psi | 66% | 2982 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 45,034 psi | 72% | 3012 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 80% | 38,450 psi | 62% | 2844 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,862 psi | 75% | 3025 fps | 99% |
| Alliant AR-Comp | <<locked>> | 80% | 47,036 psi | 75% | 3031 fps | 100% |
| Alliant Power Pro 2000-MR | 59 gr | 80% | 40,828 psi | 65% | 3022 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,247 psi | 61% | 2874 fps | 96.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,944 psi | 66% | 2940 fps | 96% |
| Alliant Reloder-16 | <<locked>> | 92% | 42,743 psi | 69% | 3041 fps | 95.9% |
| Alliant Reloder-17 | 59.6 gr | 82% | 35,447 psi | 57% | 2881 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 98% | 37,347 psi | 60% | 2927 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,048 psi | 71% | 3005 fps | 96.3% |
| Bofors RP3 | <<locked>> | 80% | 38,261 psi | 61% | 2881 fps | 96.9% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,675 psi | 78% | 3018 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,006 psi | 74% | 3048 fps | 99.2% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,995 psi | 80% | 3196 fps | 98.2% |
| Hodgdon H380 | <<locked>> | 84% | 44,193 psi | 71% | 2999 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 96% | 52,199 psi | 84% | 3209 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 45,440 psi | 73% | 3028 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 35,244 psi | 57% | 2815 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,350 psi | 66% | 2989 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,731 psi | 43% | 1798 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,395 psi | 70% | 2969 fps | 97.8% |
| IMR 3031 | <<locked>> | 80% | 45,049 psi | 72% | 3041 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,350 psi | 65% | 2881 fps | 95.9% |
| IMR 4831 | <<locked>> | 92% | 41,843 psi | 67% | 2986 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 41,858 psi | 67% | 2972 fps | 96.9% |
| IMR 8208 XBR | <<locked>> | 80% | 46,862 psi | 75% | 3025 fps | 99% |
| Lovex D073.6 | <<locked>> | 80% | 44,599 psi | 72% | 3005 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 44,904 psi | 72% | 2946 fps | 97.7% |
| Lovex S062 | <<locked>> | 80% | 40,611 psi | 65% | 2897 fps | 97.9% |
| Lovex S065 | <<locked>> | 92% | 47,805 psi | 77% | 3041 fps | 95.6% |
| Lovex S070 | <<locked>> | 96% | 51,547 psi | 83% | 3130 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 44,614 psi | 72% | 2972 fps | 98.7% |
| Norma 202 | <<locked>> | 80% | 44,541 psi | 71% | 2982 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 40,364 psi | 65% | 2930 fps | 96.5% |
| Norma URP | <<locked>> | 90% | 40,727 psi | 65% | 2976 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 39,639 psi | 64% | 2930 fps | 96% |
| Ramshot Hunter | <<locked>> | 96% | 48,037 psi | 77% | 3133 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 47,021 psi | 75% | 3018 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,369 psi | 74% | 3045 fps | 97.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,734 psi | 81% | 3077 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,021 psi | 43% | 1841 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,344 psi | 84% | 3123 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 50,183 psi | 80% | 3087 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,511 psi | 68% | 3045 fps | 96.4% |
| ReloadSwiss RS 60 | 58.1 gr | 80% | 35,186 psi | 56% | 2890 fps | 97.6% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 43,178 psi | 69% | 3054 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 46,151 psi | 74% | 3127 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 48,805 psi | 78% | 3031 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,569 psi | 68% | 2920 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 80% | 36,158 psi | 58% | 2822 fps | 95.9% |
| Shooters World Long Rifle | <<locked>> | 92% | 47,805 psi | 77% | 3041 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,599 psi | 72% | 3005 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 40,611 psi | 65% | 2897 fps | 97.9% |
| Shooters World SW4350 | <<locked>> | 96% | 51,547 psi | 83% | 3130 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,506 psi | 59% | 2858 fps | 95% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,643 psi | 73% | 2995 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,453 psi | 70% | 2976 fps | 97.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,527 psi | 73% | 2927 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,072 psi | 61% | 2776 fps | 99.7% |
| Somchem S321 | <<locked>> | 80% | 50,792 psi | 81% | 3114 fps | 99.6% |
| Somchem S335 | <<locked>> | 80% | 45,339 psi | 73% | 2930 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,846 psi | 72% | 2989 fps | 97.5% |
| Somchem S355 | <<locked>> | 80% | 36,854 psi | 59% | 2825 fps | 95.9% |
| Somchem S365 | <<locked>> | 86% | 32,605 psi | 52% | 2802 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 51,082 psi | 82% | 3002 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,585 psi | 73% | 2920 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,669 psi | 67% | 2910 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,119 psi | 68% | 2907 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 34,954 psi | 56% | 2753 fps | 96.8% |
| Vihtavuori N160 | <<locked>> | 90% | 42,351 psi | 68% | 2972 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 47,079 psi | 75% | 3025 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 80% | 40,799 psi | 65% | 2894 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 90% | 41,989 psi | 67% | 2979 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 96% | 37,985 psi | 61% | 2959 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 35,317 psi | 57% | 2772 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 46,572 psi | 75% | 3071 fps | 99.5% |
| Winchester 760 | <<locked>> | 96% | 52,446 psi | 84% | 3215 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,946 psi | 69% | 2979 fps | 97.8% |
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 84 powders for .300 H&H Mag. loaded with the .308 | 130gr | Impala LWHV LS. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,337 fps; across all powders the maximum-charge window runs from 2,005 fps to 3,337 fps. Alliant Reloder-16 gives the best case fill at 100 %, and 84 of the 84 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.308" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-16, Alliant Reloder-23, Hodgdon Hybrid 100V 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 Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .300 H&H Mag. with the .308 | 130gr | Impala LWHV LS 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.