Load Specifications
Load data in caliber .300 H&H Mag. with .308 | 162gr | SAKO Blade bullet and 97 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.
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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>> | 82% | 53,359 psi | 86% | 2785 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 55,463 psi | 89% | 2854 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 53,896 psi | 86% | 2874 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,013 psi | 88% | 2864 fps | 97.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,062 psi | 69% | 2753 fps | 96.5% |
| Accurate 4064 | <<locked>> | 90% | 55,840 psi | 90% | 2907 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 56,173 psi | 90% | 2999 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 86% | 56,260 psi | 90% | 2943 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 53,969 psi | 87% | 2890 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,027 psi | 88% | 2890 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,260 psi | 90% | 2861 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 52,373 psi | 84% | 3002 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 54,056 psi | 87% | 2913 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 54,418 psi | 87% | 2933 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 53,824 psi | 86% | 3002 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,042 psi | 88% | 3038 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,944 psi | 66% | 2782 fps | 99.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,209 psi | 74% | 2956 fps | 98.7% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,376 psi | 90% | 2959 fps | 99.8% |
| Bofors RP3 | <<locked>> | 90% | 54,447 psi | 87% | 2923 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 54,636 psi | 88% | 2900 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 82% | 53,447 psi | 86% | 2825 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,607 psi | 88% | 2920 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 55,535 psi | 89% | 2943 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 96% | 55,579 psi | 89% | 2999 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 94% | 55,869 psi | 90% | 2959 fps | 97% |
| Hodgdon H4895 | <<locked>> | 84% | 53,185 psi | 85% | 2897 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,708 psi | 86% | 2927 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 52,808 psi | 85% | 2930 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,260 psi | 90% | 3038 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,621 psi | 57% | 1798 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,607 psi | 88% | 2900 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 53,287 psi | 85% | 2881 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 53,388 psi | 86% | 2874 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 86% | 53,069 psi | 85% | 2848 fps | 97.6% |
| IMR 4350 | <<locked>> | 98% | 55,201 psi | 89% | 2927 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 92% | 53,301 psi | 85% | 2877 fps | 97.6% |
| IMR 4831 | <<locked>> | 98% | 53,127 psi | 85% | 2933 fps | 99.6% |
| IMR 4895 | <<locked>> | 88% | 55,840 psi | 90% | 2963 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,027 psi | 88% | 2890 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 55,985 psi | 90% | 2913 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,535 psi | 89% | 2867 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 53,098 psi | 85% | 2867 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 55,956 psi | 90% | 2923 fps | 99.1% |
| Lovex S070 | <<locked>> | 96% | 53,505 psi | 86% | 2907 fps | 98% |
| Norma 201 | <<locked>> | 86% | 54,679 psi | 88% | 2881 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,390 psi | 89% | 2884 fps | 100% |
| Norma 203B | <<locked>> | 88% | 53,635 psi | 86% | 2917 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,028 psi | 90% | 2979 fps | 96.5% |
| Norma MRPᴾ | <<locked>> | 100% | 46,093 psi | 74% | 2910 fps | 96.1% |
| Norma URP | <<locked>> | 98% | 55,216 psi | 89% | 2986 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 88% | 54,476 psi | 87% | 2946 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 54,186 psi | 87% | 2982 fps | 98.7% |
| Ramshot TAC | <<locked>> | 84% | 55,303 psi | 89% | 2907 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,201 psi | 89% | 2927 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,912 psi | 90% | 2890 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,013 psi | 58% | 1841 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,796 psi | 89% | 2923 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,245 psi | 89% | 3005 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 54,766 psi | 88% | 3038 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,231 psi | 90% | 3025 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,521 psi | 89% | 3051 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 84% | 55,390 psi | 89% | 2861 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,288 psi | 89% | 2881 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 54,317 psi | 87% | 2917 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 54,636 psi | 88% | 2900 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,956 psi | 90% | 2923 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 86% | 55,985 psi | 90% | 2913 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 53,098 psi | 85% | 2867 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 53,505 psi | 86% | 2907 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,405 psi | 90% | 2982 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 53,722 psi | 86% | 2884 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,795 psi | 88% | 2913 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,420 psi | 90% | 2825 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 53,374 psi | 86% | 2776 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,217 psi | 90% | 2877 fps | 98.1% |
| Somchem S321 | <<locked>> | 82% | 56,434 psi | 90% | 2923 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,564 psi | 89% | 2818 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 53,505 psi | 86% | 2877 fps | 99.9% |
| Somchem S355 | <<locked>> | 92% | 54,810 psi | 88% | 2920 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,403 psi | 86% | 2986 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 49,385 psi | 79% | 2864 fps | 96.4% |
| Vihtavuori N130 | <<locked>> | 82% | 55,840 psi | 90% | 2779 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 53,316 psi | 85% | 2759 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,216 psi | 89% | 2844 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,173 psi | 90% | 2864 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,391 psi | 90% | 2897 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,186 psi | 87% | 2930 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 84% | 55,753 psi | 89% | 2890 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 54,230 psi | 87% | 2858 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 53,185 psi | 85% | 2933 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,136 psi | 72% | 2858 fps | 99% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,418 psi | 87% | 2907 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 55,941 psi | 90% | 2940 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,579 psi | 89% | 2999 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,521 psi | 59% | 2785 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 54,621 psi | 88% | 2920 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 2015 | <<locked>> | 80% | 50,082 psi | 80% | 2736 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,511 psi | 68% | 2657 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,314 psi | 81% | 2822 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 48,124 psi | 77% | 2749 fps | 95.8% |
| Accurate 3100 | <<locked>> | 98% | 40,001 psi | 64% | 2690 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 40,234 psi | 65% | 2651 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 34,113 psi | 55% | 2579 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 46,441 psi | 74% | 2779 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 80% | 39,407 psi | 63% | 2621 fps | 97.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,617 psi | 78% | 2785 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 49,197 psi | 79% | 2766 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,525 psi | 68% | 2815 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,117 psi | 63% | 2644 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,076 psi | 67% | 2713 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 84% | 34,476 psi | 55% | 2598 fps | 95.7% |
| Alliant Reloder-17 | 56.2 gr | 80% | 33,794 psi | 54% | 2612 fps | 97.3% |
| Alliant Reloder-23 | <<locked>> | 90% | 29,820 psi | 48% | 2497 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 94% | 37,159 psi | 60% | 2749 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,759 psi | 73% | 2782 fps | 98.7% |
| Bofors RP3 | <<locked>> | 80% | 38,624 psi | 62% | 2644 fps | 98.9% |
| Bofors RP7 | <<locked>> | 88% | 45,049 psi | 72% | 2730 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,285 psi | 81% | 2772 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,703 psi | 76% | 2808 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 39,523 psi | 63% | 2648 fps | 96.7% |
| Hodgdon H414 | <<locked>> | 88% | 42,337 psi | 68% | 2759 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 90% | 49,110 psi | 79% | 2841 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 46,934 psi | 75% | 2789 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 29,530 psi | 47% | 2434 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,163 psi | 69% | 2762 fps | 99.6% |
| Hodgdon Superformance | 66.8 gr | 90% | 45,020 psi | 72% | 2835 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,324 psi | 42% | 1604 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,976 psi | 72% | 2740 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 46,862 psi | 75% | 2782 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,394 psi | 66% | 2657 fps | 98.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,903 psi | 70% | 2680 fps | 95.5% |
| IMR 4350 | <<locked>> | 92% | 45,614 psi | 73% | 2762 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 86% | 44,106 psi | 71% | 2713 fps | 95.5% |
| IMR 4831 | <<locked>> | 84% | 33,228 psi | 53% | 2539 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 43,134 psi | 69% | 2743 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 80% | 48,617 psi | 78% | 2785 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 45,701 psi | 73% | 2753 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,195 psi | 74% | 2710 fps | 99.4% |
| Lovex S062 | <<locked>> | 80% | 41,205 psi | 66% | 2657 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 38,319 psi | 61% | 2598 fps | 95.4% |
| Lovex S070 | <<locked>> | 88% | 41,452 psi | 66% | 2684 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 45,223 psi | 73% | 2723 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 45,774 psi | 73% | 2733 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,408 psi | 66% | 2700 fps | 98.8% |
| Norma 204 | <<locked>> | 96% | 52,228 psi | 84% | 2920 fps | 95.6% |
| Norma MRP | <<locked>> | 98% | 42,946 psi | 69% | 2844 fps | 95% |
| Norma URP | <<locked>> | 84% | 34,519 psi | 55% | 2585 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 41,249 psi | 66% | 2713 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 90% | 41,263 psi | 66% | 2743 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 48,617 psi | 78% | 2795 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,095 psi | 77% | 2812 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,431 psi | 84% | 2838 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,745 psi | 43% | 1644 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,972 psi | 64% | 2635 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,614 psi | 72% | 2818 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,056 psi | 58% | 2680 fps | 99.7% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 33,982 psi | 54% | 2598 fps | 95% |
| ReloadSwiss RS 70 | 61.3 gr | 86% | 36,463 psi | 58% | 2664 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 49,139 psi | 79% | 2766 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,917 psi | 69% | 2674 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 36,434 psi | 58% | 2589 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 88% | 45,049 psi | 72% | 2730 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 84% | 38,319 psi | 61% | 2598 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,701 psi | 73% | 2753 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,205 psi | 66% | 2657 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 41,452 psi | 66% | 2684 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,565 psi | 60% | 2641 fps | 97.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,862 psi | 75% | 2769 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,904 psi | 72% | 2746 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,746 psi | 75% | 2677 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,972 psi | 62% | 2539 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 43,250 psi | 69% | 2657 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 52,591 psi | 84% | 2864 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,209 psi | 74% | 2677 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,543 psi | 75% | 2762 fps | 99.4% |
| Somchem S355 | <<locked>> | 80% | 37,217 psi | 60% | 2595 fps | 98.2% |
| Somchem S365 | <<locked>> | 80% | 26,977 psi | 43% | 2415 fps | 95.8% |
| Somchem S385 | <<locked>> | 98% | 46,035 psi | 74% | 2802 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 52,721 psi | 85% | 2736 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,195 psi | 76% | 2671 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,844 psi | 69% | 2657 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,410 psi | 70% | 2667 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,447 psi | 57% | 2530 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 33,779 psi | 54% | 2533 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 48,573 psi | 78% | 2779 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 41,713 psi | 67% | 2651 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 35,636 psi | 57% | 2592 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 90% | 32,169 psi | 52% | 2572 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,314 psi | 50% | 2451 fps | 96.5% |
| Winchester 748 | <<locked>> | 80% | 48,747 psi | 78% | 2831 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 42,337 psi | 68% | 2759 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 94% | 29,936 psi | 48% | 2579 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,570 psi | 71% | 2749 fps | 99.5% |
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 97 powders for .300 H&H Mag. loaded with the .308 | 162gr | SAKO Blade. ReloadSwiss RS 70 delivers the highest muzzle velocity at 3,051 fps; across all powders the maximum-charge window runs from 1,798 fps to 3,051 fps. Accurate 3100 gives the best case fill at 100 %, and 97 of the 97 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 162.0 gr projectile in 0.308" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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 | 162gr | SAKO Blade 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.