Load Specifications
Bullet:.308 | 168gr | Barnes TAC-X
Bullet Manufacturer:Barnes
Bullet Weight:168 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
Recommended Twist Rate:1:12.0
Load data in caliber .300 H&H Mag. with .308 | 168gr | Barnes TAC-X bullet and 100 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-16 and ReloadSwiss RS 70.
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% | 56,086 psi | 90% | 2779 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,071 psi | 88% | 2802 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 53,940 psi | 86% | 2815 fps | 97.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,209 psi | 74% | 2776 fps | 97.8% |
| Accurate 4064 | <<locked>> | 88% | 55,245 psi | 89% | 2851 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,927 psi | 90% | 2953 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 84% | 55,434 psi | 89% | 2890 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 53,301 psi | 85% | 2841 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 54,012 psi | 87% | 2933 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 54,230 psi | 87% | 2835 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,666 psi | 89% | 2808 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,593 psi | 89% | 3015 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 53,838 psi | 86% | 2930 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 53,577 psi | 86% | 2864 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 53,896 psi | 86% | 2884 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 53,490 psi | 86% | 2959 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 92% | 54,766 psi | 88% | 2989 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 53,040 psi | 85% | 2920 fps | 96.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,743 psi | 70% | 2802 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 38,290 psi | 61% | 2697 fps | 96.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 49,603 psi | 80% | 2982 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,448 psi | 89% | 2907 fps | 99.9% |
| Bofors RP3 | <<locked>> | 88% | 53,969 psi | 87% | 2877 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 53,838 psi | 86% | 2851 fps | 97.8% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,825 psi | 90% | 2818 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 53,853 psi | 86% | 2864 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,882 psi | 88% | 2894 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 94% | 55,187 psi | 88% | 2953 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 92% | 55,405 psi | 89% | 2913 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 84% | 56,014 psi | 90% | 2900 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 53,490 psi | 86% | 2884 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 56,043 psi | 90% | 2933 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 55,535 psi | 89% | 2992 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,694 psi | 57% | 1778 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 53,737 psi | 86% | 2848 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 52,794 psi | 85% | 2828 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 56,159 psi | 90% | 2877 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,796 psi | 89% | 2861 fps | 98.6% |
| IMR 4350 | <<locked>> | 96% | 54,679 psi | 88% | 2884 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,724 psi | 89% | 2884 fps | 98.5% |
| IMR 4831 | <<locked>> | 96% | 52,881 psi | 85% | 2890 fps | 99.8% |
| IMR 4895 | <<locked>> | 86% | 55,317 psi | 89% | 2913 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 54,230 psi | 87% | 2835 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 55,550 psi | 89% | 2864 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,578 psi | 88% | 2815 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 55,941 psi | 90% | 2867 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 55,463 psi | 89% | 2881 fps | 99.4% |
| Lovex S070 | <<locked>> | 96% | 56,420 psi | 90% | 2917 fps | 98.8% |
| Norma 201 | <<locked>> | 84% | 54,143 psi | 87% | 2831 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,853 psi | 88% | 2831 fps | 100% |
| Norma 203B | <<locked>> | 86% | 53,156 psi | 85% | 2871 fps | 100% |
| Norma 204 | <<locked>> | 96% | 55,390 psi | 89% | 2936 fps | 97% |
| Norma MRPᴾ | <<locked>> | 100% | 49,269 psi | 79% | 2936 fps | 97.5% |
| Norma URP | <<locked>> | 96% | 54,882 psi | 88% | 2940 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 86% | 53,708 psi | 86% | 2894 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 53,809 psi | 86% | 2940 fps | 99% |
| Ramshot TAC | <<locked>> | 82% | 54,317 psi | 87% | 2854 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 82% | 54,375 psi | 87% | 2874 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,332 psi | 58% | 1821 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 55,071 psi | 88% | 2877 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,621 psi | 88% | 2953 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 54,505 psi | 87% | 2986 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 55,956 psi | 90% | 2976 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 55,172 psi | 88% | 3009 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 82% | 54,679 psi | 88% | 2808 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 54,723 psi | 88% | 2831 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 54,114 psi | 87% | 2871 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 55,782 psi | 89% | 2907 fps | 96% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 52,011 psi | 83% | 2907 fps | 96.7% |
| Rottweil R 907 | <<locked>> | 92% | 53,838 psi | 86% | 2851 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 94% | 55,463 psi | 89% | 2881 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 55,550 psi | 89% | 2864 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,941 psi | 90% | 2867 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 56,420 psi | 90% | 2917 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,796 psi | 89% | 2933 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 52,852 psi | 85% | 2831 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 53,983 psi | 87% | 2861 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,419 psi | 89% | 2769 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 56,072 psi | 90% | 2769 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 55,390 psi | 89% | 2831 fps | 98.5% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 51,532 psi | 83% | 2900 fps | 96.6% |
| Somchem S335 | <<locked>> | 84% | 54,926 psi | 88% | 2769 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 52,692 psi | 84% | 2825 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 54,288 psi | 87% | 2867 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 53,650 psi | 86% | 2943 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 52,489 psi | 84% | 2881 fps | 97.6% |
| Vihtavuori N133 | <<locked>> | 84% | 55,883 psi | 90% | 2753 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 54,839 psi | 88% | 2795 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,303 psi | 89% | 2812 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,651 psi | 89% | 2844 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 53,824 psi | 86% | 2884 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 82% | 54,578 psi | 88% | 2835 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 53,621 psi | 86% | 2808 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 52,837 psi | 85% | 2887 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,805 psi | 78% | 2881 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 53,751 psi | 86% | 2858 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 55,216 psi | 89% | 2887 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 55,187 psi | 88% | 2953 fps | 98.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,117 psi | 63% | 2825 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 53,795 psi | 86% | 2864 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% | 52,736 psi | 85% | 2733 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,179 psi | 72% | 2657 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,135 psi | 71% | 2641 fps | 95.4% |
| Accurate 3100 | <<locked>> | 94% | 37,434 psi | 60% | 2598 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 42,815 psi | 69% | 2657 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,836 psi | 51% | 2484 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 48,863 psi | 78% | 2782 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 41,336 psi | 66% | 2628 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 96% | 47,340 psi | 76% | 2818 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,039 psi | 82% | 2785 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 52,156 psi | 84% | 2759 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,875 psi | 72% | 2825 fps | 99.3% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 47,079 psi | 75% | 2812 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,423 psi | 66% | 2654 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,411 psi | 71% | 2720 fps | 99.2% |
| Alliant Reloder-16 | 53.5 gr | 80% | 31,952 psi | 51% | 2500 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 35,810 psi | 57% | 2628 fps | 98.5% |
| Alliant Reloder-19 | <<locked>> | 96% | 46,456 psi | 74% | 2805 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 86% | 27,862 psi | 45% | 2408 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 98% | 36,013 psi | 58% | 2638 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 90% | 34,505 psi | 55% | 2651 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,298 psi | 77% | 2792 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 41,249 psi | 66% | 2657 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 44,585 psi | 71% | 2687 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,359 psi | 84% | 2769 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,212 psi | 81% | 2808 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,959 psi | 67% | 2664 fps | 97.9% |
| Hodgdon H414 | <<locked>> | 86% | 41,959 psi | 67% | 2713 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 86% | 45,513 psi | 73% | 2740 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 49,400 psi | 79% | 2792 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,414 psi | 47% | 2398 fps | 96.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,629 psi | 73% | 2766 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 44,498 psi | 71% | 2795 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,600 psi | 43% | 1588 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,311 psi | 76% | 2743 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 49,487 psi | 79% | 2779 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,439 psi | 70% | 2664 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,977 psi | 74% | 2690 fps | 96.7% |
| IMR 4350 | <<locked>> | 88% | 42,308 psi | 68% | 2664 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 82% | 40,930 psi | 66% | 2612 fps | 95.2% |
| IMR 4831 | <<locked>> | 82% | 33,141 psi | 53% | 2503 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 45,571 psi | 73% | 2749 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 51,039 psi | 82% | 2785 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,312 psi | 77% | 2756 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,428 psi | 78% | 2713 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 43,540 psi | 70% | 2664 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 35,708 psi | 57% | 2503 fps | 95.1% |
| Lovex S070 | <<locked>> | 86% | 41,017 psi | 66% | 2641 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 47,659 psi | 76% | 2730 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,283 psi | 77% | 2733 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,772 psi | 70% | 2707 fps | 99.4% |
| Norma 204 | <<locked>> | 92% | 48,312 psi | 77% | 2815 fps | 95.4% |
| Norma MRP | <<locked>> | 96% | 42,728 psi | 69% | 2808 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 32,227 psi | 52% | 2490 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 43,598 psi | 70% | 2723 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 38,377 psi | 62% | 2644 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 51,024 psi | 82% | 2802 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,734 psi | 81% | 2818 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,064 psi | 43% | 1631 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,235 psi | 68% | 2648 fps | 96.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,587 psi | 76% | 2835 fps | 99.6% |
| ReloadSwiss RS 60 | 57.6 gr | 80% | 38,189 psi | 61% | 2694 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 33,924 psi | 54% | 2559 fps | 95.6% |
| ReloadSwiss RS 70 | 61.5 gr | 84% | 36,187 psi | 58% | 2628 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 51,488 psi | 83% | 2759 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,281 psi | 73% | 2680 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,740 psi | 62% | 2602 fps | 99.1% |
| Rottweil R 904 | <<locked>> | 98% | 52,417 psi | 84% | 2851 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 96% | 45,252 psi | 73% | 2785 fps | 95% |
| Rottweil R 907 | <<locked>> | 86% | 44,585 psi | 71% | 2687 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,708 psi | 57% | 2503 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,312 psi | 77% | 2756 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,540 psi | 70% | 2664 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 41,017 psi | 66% | 2641 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,001 psi | 64% | 2654 fps | 98.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,458 psi | 79% | 2776 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,398 psi | 76% | 2753 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,892 psi | 78% | 2674 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,930 psi | 66% | 2539 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 39,798 psi | 64% | 2552 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 48,022 psi | 77% | 2838 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 48,501 psi | 78% | 2674 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,124 psi | 79% | 2769 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 39,407 psi | 63% | 2605 fps | 99.1% |
| Somchem S365 | <<locked>> | 80% | 28,819 psi | 46% | 2438 fps | 97.4% |
| Somchem S385 | <<locked>> | 94% | 43,091 psi | 69% | 2710 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 49,400 psi | 79% | 2664 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,266 psi | 73% | 2654 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,759 psi | 73% | 2667 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,594 psi | 60% | 2539 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 33,634 psi | 54% | 2493 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 51,300 psi | 82% | 2785 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,121 psi | 71% | 2657 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,098 psi | 53% | 2490 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 86% | 30,197 psi | 48% | 2484 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,098 psi | 53% | 2467 fps | 97.8% |
| Winchester 748 | <<locked>> | 80% | 51,372 psi | 82% | 2828 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 42,177 psi | 68% | 2720 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,905 psi | 45% | 2484 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,934 psi | 75% | 2753 fps | 99.9% |
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 100 powders for .300 H&H Mag. loaded with the .308 | 168gr | Barnes TAC-X. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,015 fps; across all powders the maximum-charge window runs from 1,778 fps to 3,015 fps. Accurate 3100 gives the best case fill at 100 %, and 100 of the 100 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 168.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. 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 60, Alliant Reloder-16, ReloadSwiss RS 70 rank at the top here: for .300 H&H Mag. with the .308 | 168gr | Barnes TAC-X 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.