Load Specifications
Bullet Manufacturer:Woodleigh
Bullet Weight:150 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:.300 H&H Mag. load data
Case Length (l3):2.85"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:85.9 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:62,366 psi
Load data in caliber .300 H&H Mag. with .308 | 150gr | Woodleigh FN SN bullet and 96 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance 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 2495 | <<locked>> | 86% | 56,115 psi | 90% | 2982 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 54,621 psi | 88% | 2982 fps | 97% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,311 psi | 76% | 2940 fps | 97.3% |
| Accurate 4064 | <<locked>> | 86% | 52,837 psi | 85% | 2982 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 52,982 psi | 85% | 3071 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 84% | 55,825 psi | 90% | 3064 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 53,708 psi | 86% | 3015 fps | 99.7% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 54,476 psi | 87% | 3100 fps | 96.1% |
| ADI Benchmark 8208 | <<locked>> | 82% | 54,810 psi | 88% | 3012 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 56,115 psi | 90% | 2986 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 56,188 psi | 90% | 3192 fps | 99.9% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 54,520 psi | 87% | 3100 fps | 96.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 53,969 psi | 87% | 3035 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 54,346 psi | 87% | 3058 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 96% | 53,896 psi | 86% | 3130 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 92% | 55,361 psi | 89% | 3166 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 53,708 psi | 86% | 3087 fps | 96.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,367 psi | 71% | 2966 fps | 99.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,589 psi | 81% | 3153 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 56,014 psi | 90% | 3081 fps | 99.7% |
| Bofors RP3 | <<locked>> | 88% | 54,795 psi | 88% | 3054 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 54,520 psi | 87% | 3022 fps | 97.2% |
| Hodgdon Benchmark | <<locked>> | 82% | 56,043 psi | 90% | 2992 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 54,418 psi | 87% | 3041 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 55,434 psi | 89% | 3068 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 94% | 55,521 psi | 89% | 3120 fps | 98% |
| Hodgdon H4350 | <<locked>> | 92% | 55,840 psi | 90% | 3084 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 82% | 53,156 psi | 85% | 3022 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 54,041 psi | 87% | 3054 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 56,420 psi | 90% | 3110 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 56,217 psi | 90% | 3163 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,926 psi | 58% | 1913 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 54,085 psi | 87% | 3022 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 53,272 psi | 85% | 3005 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 52,982 psi | 85% | 2992 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,999 psi | 90% | 3025 fps | 98% |
| IMR 4350 | <<locked>> | 96% | 55,100 psi | 88% | 3051 fps | 97.4% |
| IMR 4451 Enduron | <<locked>> | 92% | 56,202 psi | 90% | 3054 fps | 98% |
| IMR 4831 | <<locked>> | 96% | 53,534 psi | 86% | 3061 fps | 99.5% |
| IMR 4895 | <<locked>> | 86% | 55,782 psi | 89% | 3091 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 54,810 psi | 88% | 3012 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 56,072 psi | 90% | 3041 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,926 psi | 88% | 2986 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 53,171 psi | 85% | 2992 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 55,999 psi | 90% | 3051 fps | 99% |
| Lovex S070 | <<locked>> | 94% | 53,795 psi | 86% | 3035 fps | 97.9% |
| Norma 201 | <<locked>> | 84% | 54,694 psi | 88% | 3009 fps | 100% |
| Norma 202 | <<locked>> | 84% | 55,216 psi | 89% | 3005 fps | 100% |
| Norma 203B | <<locked>> | 86% | 53,635 psi | 86% | 3045 fps | 99.9% |
| Norma 204 | <<locked>> | 96% | 55,883 psi | 90% | 3100 fps | 96.3% |
| Norma MRPᴾ | <<locked>> | 100% | 50,053 psi | 80% | 3104 fps | 96.9% |
| Norma URP | <<locked>> | 96% | 55,463 psi | 89% | 3110 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 86% | 54,375 psi | 87% | 3068 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 96% | 54,375 psi | 87% | 3107 fps | 98.6% |
| Ramshot TAC | <<locked>> | 82% | 54,926 psi | 88% | 3028 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 82% | 54,781 psi | 88% | 3048 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,521 psi | 59% | 1959 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 55,521 psi | 89% | 3048 fps | 98.4% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 55,158 psi | 88% | 3130 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 54,868 psi | 88% | 3163 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 52,721 psi | 85% | 3087 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 55,564 psi | 89% | 3179 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 82% | 55,434 psi | 89% | 2989 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 55,158 psi | 88% | 3005 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 54,607 psi | 88% | 3045 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 52,562 psi | 84% | 3071 fps | 96% |
| Rottweil R 907 | <<locked>> | 92% | 54,520 psi | 87% | 3022 fps | 97.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 55,999 psi | 90% | 3051 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 84% | 56,072 psi | 90% | 3041 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 53,171 psi | 85% | 2992 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 53,795 psi | 86% | 3035 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 56,347 psi | 90% | 3107 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 53,650 psi | 86% | 3005 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 54,491 psi | 87% | 3035 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,854 psi | 90% | 2946 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 53,127 psi | 85% | 2897 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 56,202 psi | 90% | 3002 fps | 98% |
| Somchem S335 | <<locked>> | 84% | 55,376 psi | 89% | 2940 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 53,301 psi | 85% | 2999 fps | 99.9% |
| Somchem S355 | <<locked>> | 90% | 54,824 psi | 88% | 3045 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 54,201 psi | 87% | 3120 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 53,447 psi | 86% | 3051 fps | 97% |
| Vihtavuori N133 | <<locked>> | 84% | 56,217 psi | 90% | 2927 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 55,347 psi | 89% | 2972 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,811 psi | 89% | 2986 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 56,289 psi | 90% | 3022 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 54,273 psi | 87% | 3054 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 82% | 55,085 psi | 88% | 3009 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 54,085 psi | 87% | 2979 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 53,403 psi | 86% | 3058 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 49,501 psi | 79% | 3048 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 54,259 psi | 87% | 3028 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 55,550 psi | 89% | 3061 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 55,767 psi | 89% | 3123 fps | 98.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,074 psi | 64% | 2989 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 84% | 54,375 psi | 87% | 3041 fps | 100% |
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 2495 | <<locked>> | 80% | 46,224 psi | 74% | 2831 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 47,834 psi | 77% | 2861 fps | 95.5% |
| Accurate 3100 | <<locked>> | 96% | 41,060 psi | 66% | 2815 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 43,743 psi | 70% | 2828 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 35,027 psi | 56% | 2700 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 49,313 psi | 79% | 2953 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 41,756 psi | 67% | 2785 fps | 98.1% |
| ADI AR 2209 | <<locked>> | 98% | 51,140 psi | 82% | 3038 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,372 psi | 82% | 2956 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 52,634 psi | 84% | 2940 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,368 psi | 73% | 2992 fps | 98.8% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 50,995 psi | 82% | 3038 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,887 psi | 67% | 2812 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,933 psi | 72% | 2884 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 82% | 34,679 psi | 56% | 2710 fps | 95.4% |
| Alliant Reloder-17 | 62 gr | 80% | 36,492 psi | 59% | 2785 fps | 97.9% |
| Alliant Reloder-19 | <<locked>> | 98% | 50,270 psi | 81% | 3025 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 88% | 30,414 psi | 49% | 2608 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 92% | 37,768 psi | 61% | 2867 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,892 psi | 78% | 2956 fps | 99% |
| Bofors RP3 | <<locked>> | 80% | 41,872 psi | 67% | 2822 fps | 99.3% |
| Bofors RP7 | <<locked>> | 86% | 45,121 psi | 72% | 2844 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,823 psi | 85% | 2943 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,821 psi | 81% | 2982 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 42,583 psi | 68% | 2825 fps | 97.3% |
| Hodgdon H414 | <<locked>> | 86% | 42,627 psi | 68% | 2877 fps | 95% |
| Hodgdon H4350 | <<locked>> | 88% | 49,066 psi | 79% | 2959 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 49,806 psi | 80% | 2963 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,037 psi | 48% | 2546 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,079 psi | 74% | 2933 fps | 99.8% |
| Hodgdon Superformance | 72.1 gr | 88% | 45,237 psi | 73% | 2956 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,745 psi | 43% | 1709 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,674 psi | 76% | 2910 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 49,951 psi | 80% | 2953 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,888 psi | 70% | 2825 fps | 98.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,441 psi | 74% | 2851 fps | 96% |
| IMR 4350 | <<locked>> | 90% | 45,614 psi | 73% | 2877 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 84% | 43,976 psi | 71% | 2825 fps | 95.2% |
| IMR 4831 | <<locked>> | 82% | 33,837 psi | 54% | 2654 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 46,035 psi | 74% | 2917 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 80% | 51,372 psi | 82% | 2956 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 49,110 psi | 79% | 2930 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,776 psi | 78% | 2881 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 44,121 psi | 71% | 2831 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 38,580 psi | 62% | 2710 fps | 95.1% |
| Lovex S070 | <<locked>> | 88% | 44,556 psi | 71% | 2861 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 48,225 psi | 77% | 2900 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 48,660 psi | 78% | 2900 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,295 psi | 71% | 2871 fps | 99.1% |
| Norma 204 | <<locked>> | 94% | 52,243 psi | 84% | 3038 fps | 95.4% |
| Norma MRP | <<locked>> | 96% | 43,540 psi | 70% | 2969 fps | 95% |
| Norma URP | <<locked>> | 82% | 35,012 psi | 56% | 2697 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 44,106 psi | 71% | 2884 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 88% | 41,640 psi | 67% | 2861 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 51,387 psi | 82% | 2966 fps | 98.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,198 psi | 82% | 2989 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,180 psi | 44% | 1752 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,815 psi | 69% | 2805 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,906 psi | 77% | 3002 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,827 psi | 62% | 2858 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 37,173 psi | 60% | 2776 fps | 95.8% |
| ReloadSwiss RS 70 | 67.7 gr | 86% | 39,421 psi | 63% | 2848 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 52,214 psi | 84% | 2936 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,977 psi | 74% | 2848 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 39,349 psi | 63% | 2759 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 98% | 49,081 psi | 79% | 3009 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 86% | 45,121 psi | 72% | 2844 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 82% | 38,580 psi | 62% | 2710 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,110 psi | 79% | 2930 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,121 psi | 71% | 2831 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 44,556 psi | 71% | 2861 fps | 95.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,408 psi | 65% | 2812 fps | 98.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,024 psi | 80% | 2943 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,776 psi | 77% | 2917 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,298 psi | 79% | 2844 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,394 psi | 66% | 2700 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 43,163 psi | 69% | 2766 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 49,008 psi | 79% | 2841 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,763 psi | 80% | 2940 fps | 99.6% |
| Somchem S355 | <<locked>> | 80% | 40,001 psi | 64% | 2766 fps | 98.6% |
| Somchem S365 | <<locked>> | 80% | 29,457 psi | 47% | 2585 fps | 96.7% |
| Somchem S385 | <<locked>> | 96% | 46,804 psi | 75% | 2930 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 49,748 psi | 80% | 2835 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,818 psi | 73% | 2825 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,093 psi | 74% | 2831 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,043 psi | 61% | 2694 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 82% | 36,550 psi | 59% | 2703 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 51,576 psi | 83% | 2953 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,643 psi | 72% | 2822 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 36,056 psi | 58% | 2700 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 88% | 33,141 psi | 53% | 2690 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,750 psi | 54% | 2615 fps | 97.2% |
| Winchester 748 | <<locked>> | 80% | 51,793 psi | 83% | 3002 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 42,627 psi | 68% | 2877 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 92% | 30,719 psi | 49% | 2700 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,558 psi | 76% | 2923 fps | 99.7% |
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 96 powders for .300 H&H Mag. loaded with the .308 | 150gr | Woodleigh FN SN. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,192 fps; across all powders the maximum-charge window runs from 1,913 fps to 3,192 fps. Accurate 3100 gives the best case fill at 100 %, and 96 of the 96 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint 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 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .300 H&H Mag. with the .308 | 150gr | Woodleigh FN 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.