Load Specifications
Bullet:.308 | 165gr | Brenneke TOG
Bullet Manufacturer:Brenneke
Bullet Weight:165 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:1:14.0
Load data in caliber .300 H&H Mag. with .308 | 165gr | Brenneke TOG bullet and 98 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 60.
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 2495 | <<locked>> | 84% | 54,795 psi | 88% | 2825 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 56,231 psi | 90% | 2881 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 49,400 psi | 79% | 2854 fps | 98.4% |
| Accurate 4064 | <<locked>> | 86% | 55,071 psi | 88% | 2877 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 55,361 psi | 89% | 2972 fps | 99.9% |
| Accurate High Countryᴾ | <<locked>> | 100% | 53,954 psi | 87% | 3048 fps | 96.1% |
| ADI AR 2206H | <<locked>> | 82% | 54,143 psi | 87% | 2900 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 55,463 psi | 89% | 2907 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 53,098 psi | 85% | 2953 fps | 96.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 56,347 psi | 90% | 2897 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 54,447 psi | 87% | 3028 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 52,823 psi | 85% | 2946 fps | 96.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 55,985 psi | 90% | 2930 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 56,347 psi | 90% | 2953 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 56,028 psi | 90% | 3028 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 53,780 psi | 86% | 3002 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 55,709 psi | 89% | 2995 fps | 97.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 49,095 psi | 79% | 2927 fps | 96.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,296 psi | 74% | 2874 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,654 psi | 65% | 2779 fps | 97.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,910 psi | 85% | 3064 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 54,157 psi | 87% | 2917 fps | 99.9% |
| Bofors RP3 | <<locked>> | 86% | 53,301 psi | 85% | 2894 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 49,095 psi | 79% | 2927 fps | 96.1% |
| Bofors RP7 | <<locked>> | 92% | 56,217 psi | 90% | 2920 fps | 98.2% |
| Hodgdon BL-C2 | <<locked>> | 82% | 56,275 psi | 90% | 2930 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 53,693 psi | 86% | 2904 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 92% | 54,143 psi | 87% | 2969 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 90% | 54,128 psi | 87% | 2927 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 82% | 54,781 psi | 88% | 2910 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 56,391 psi | 90% | 2953 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 54,795 psi | 88% | 2946 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 54,259 psi | 87% | 3002 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,071 psi | 58% | 1814 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 55,985 psi | 90% | 2913 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 55,448 psi | 89% | 2894 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 54,911 psi | 88% | 2890 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 54,172 psi | 87% | 2864 fps | 98.4% |
| IMR 4350 | <<locked>> | 94% | 53,519 psi | 86% | 2897 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 90% | 54,679 psi | 88% | 2900 fps | 98.4% |
| IMR 4831 | <<locked>> | 96% | 55,825 psi | 90% | 2963 fps | 99.9% |
| IMR 4895 | <<locked>> | 84% | 54,331 psi | 87% | 2927 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 56,347 psi | 90% | 2897 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 54,433 psi | 87% | 2874 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 53,229 psi | 85% | 2825 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 54,926 psi | 88% | 2884 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 54,375 psi | 87% | 2894 fps | 99.3% |
| Lovex S070 | <<locked>> | 94% | 55,738 psi | 89% | 2936 fps | 98.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,944 psi | 66% | 2697 fps | 96.5% |
| Norma 201 | <<locked>> | 82% | 53,127 psi | 85% | 2848 fps | 100% |
| Norma 202 | <<locked>> | 82% | 53,722 psi | 86% | 2844 fps | 100% |
| Norma 203B | <<locked>> | 86% | 55,564 psi | 89% | 2936 fps | 100% |
| Norma 204 | <<locked>> | 94% | 54,273 psi | 87% | 2949 fps | 96.8% |
| Norma MRPᴾ | <<locked>> | 100% | 52,170 psi | 84% | 3018 fps | 98.2% |
| Norma URP | <<locked>> | 94% | 54,215 psi | 87% | 2956 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 86% | 56,391 psi | 90% | 2963 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 56,391 psi | 90% | 3009 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,753 psi | 59% | 1857 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 53,722 psi | 86% | 2887 fps | 98.8% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 53,374 psi | 86% | 2963 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 53,330 psi | 86% | 2999 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 55,143 psi | 88% | 2995 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 53,998 psi | 87% | 3022 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 84% | 53,664 psi | 86% | 2844 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 53,200 psi | 85% | 2887 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 54,621 psi | 88% | 2920 fps | 95.8% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,665 psi | 88% | 2979 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 92% | 56,217 psi | 90% | 2920 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 92% | 54,375 psi | 87% | 2894 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 82% | 54,433 psi | 87% | 2874 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 54,926 psi | 88% | 2884 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 55,738 psi | 89% | 2936 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 54,926 psi | 88% | 2949 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 55,434 psi | 89% | 2904 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 56,159 psi | 90% | 2923 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 54,157 psi | 87% | 2782 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 54,723 psi | 88% | 2782 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 54,331 psi | 87% | 2844 fps | 98.4% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 54,172 psi | 87% | 2972 fps | 97.2% |
| Somchem S335 | <<locked>> | 82% | 53,809 psi | 86% | 2782 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 55,100 psi | 88% | 2894 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 53,258 psi | 85% | 2881 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 52,808 psi | 85% | 2959 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 55,376 psi | 89% | 2953 fps | 98.1% |
| Vihtavuori N133 | <<locked>> | 82% | 54,621 psi | 88% | 2766 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 53,795 psi | 86% | 2808 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 54,215 psi | 87% | 2825 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 54,563 psi | 87% | 2861 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 52,953 psi | 85% | 2900 fps | 99.7% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,892 psi | 77% | 2815 fps | 96.2% |
| Vihtavuori N540 | <<locked>> | 86% | 55,854 psi | 90% | 2867 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 55,361 psi | 89% | 2956 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,895 psi | 83% | 2956 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 56,304 psi | 90% | 2923 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 54,143 psi | 87% | 2969 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,771 psi | 67% | 2913 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 56,260 psi | 90% | 2930 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 52,069 psi | 83% | 2890 fps | 96.5% |
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 2495 | <<locked>> | 80% | 48,124 psi | 77% | 2726 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,296 psi | 74% | 2710 fps | 96% |
| Accurate 3100 | <<locked>> | 92% | 37,536 psi | 60% | 2625 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 45,527 psi | 73% | 2730 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,098 psi | 55% | 2559 fps | 96.1% |
| Accurate High Country | <<locked>> | 98% | 50,241 psi | 81% | 2986 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 50,923 psi | 82% | 2848 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 43,221 psi | 69% | 2690 fps | 99% |
| ADI AR 2209 | <<locked>> | 94% | 46,456 psi | 74% | 2828 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 53,011 psi | 85% | 2848 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,108 psi | 76% | 2897 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 46,485 psi | 75% | 2831 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,540 psi | 70% | 2720 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,485 psi | 75% | 2785 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,721 psi | 54% | 2572 fps | 96.1% |
| Alliant Reloder-17 | 59.8 gr | 80% | 37,971 psi | 61% | 2703 fps | 99% |
| Alliant Reloder-19 | <<locked>> | 94% | 45,948 psi | 74% | 2822 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 98% | 46,006 psi | 74% | 2867 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 84% | 27,949 psi | 45% | 2428 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 96% | 35,723 psi | 57% | 2654 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 88% | 34,301 psi | 55% | 2667 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,473 psi | 81% | 2858 fps | 99.6% |
| Bofors RP3 | <<locked>> | 80% | 43,526 psi | 70% | 2726 fps | 99.8% |
| Bofors RP5 | <<locked>> | 98% | 46,006 psi | 74% | 2867 fps | 95.2% |
| Bofors RP7 | <<locked>> | 84% | 43,976 psi | 71% | 2703 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,663 psi | 84% | 2874 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 44,005 psi | 71% | 2730 fps | 98.3% |
| Hodgdon H414 | <<locked>> | 84% | 41,394 psi | 66% | 2730 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 84% | 44,715 psi | 72% | 2753 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 51,445 psi | 82% | 2854 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,154 psi | 50% | 2467 fps | 96.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,819 psi | 77% | 2831 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 43,598 psi | 70% | 2802 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,919 psi | 43% | 1621 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,211 psi | 79% | 2805 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 51,880 psi | 83% | 2841 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,411 psi | 73% | 2726 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,877 psi | 77% | 2756 fps | 97.2% |
| IMR 4350 | <<locked>> | 86% | 41,800 psi | 67% | 2680 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,059 psi | 64% | 2621 fps | 95% |
| IMR 4831 | <<locked>> | 80% | 32,938 psi | 53% | 2516 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 47,659 psi | 76% | 2815 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 80% | 53,011 psi | 85% | 2848 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,836 psi | 82% | 2822 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,314 psi | 81% | 2776 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 45,745 psi | 73% | 2733 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,681 psi | 60% | 2572 fps | 95.8% |
| Lovex S070 | <<locked>> | 84% | 40,669 psi | 65% | 2657 fps | 95.6% |
| Lovex S071 | <<locked>> | 98% | 38,290 psi | 61% | 2641 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 49,908 psi | 80% | 2795 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,415 psi | 81% | 2795 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,847 psi | 74% | 2772 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 47,224 psi | 76% | 2825 fps | 95.1% |
| Norma MRP | <<locked>> | 94% | 42,351 psi | 68% | 2825 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 34,229 psi | 55% | 2562 fps | 96% |
| Ramshot Big Game | <<locked>> | 80% | 45,861 psi | 74% | 2792 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 37,927 psi | 61% | 2657 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,412 psi | 44% | 1660 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,251 psi | 71% | 2717 fps | 97% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,951 psi | 80% | 2904 fps | 99.8% |
| ReloadSwiss RS 60 | 59.8 gr | 80% | 40,364 psi | 65% | 2766 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,765 psi | 54% | 2575 fps | 95.5% |
| ReloadSwiss RS 70 | 62.2 gr | 82% | 35,578 psi | 57% | 2638 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 47,543 psi | 76% | 2746 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,031 psi | 66% | 2671 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 96% | 51,256 psi | 82% | 2861 fps | 95% |
| Rottweil R 905 | <<locked>> | 96% | 47,906 psi | 77% | 2861 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 84% | 43,976 psi | 71% | 2703 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,681 psi | 60% | 2572 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,836 psi | 82% | 2822 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,745 psi | 73% | 2733 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 40,669 psi | 65% | 2657 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,105 psi | 68% | 2723 fps | 99.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,866 psi | 83% | 2844 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,487 psi | 79% | 2818 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,763 psi | 81% | 2733 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,743 psi | 69% | 2595 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 39,392 psi | 63% | 2572 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 47,456 psi | 76% | 2854 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 50,589 psi | 81% | 2733 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,387 psi | 82% | 2835 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 41,582 psi | 67% | 2674 fps | 99.4% |
| Somchem S365 | <<locked>> | 80% | 30,734 psi | 49% | 2513 fps | 98.2% |
| Somchem S385 | <<locked>> | 92% | 42,714 psi | 68% | 2730 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 51,242 psi | 82% | 2720 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,442 psi | 76% | 2713 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,805 psi | 77% | 2726 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,595 psi | 63% | 2605 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 35,563 psi | 57% | 2562 fps | 96.4% |
| Vihtavuori N165 | <<locked>> | 98% | 44,657 psi | 72% | 2753 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 46,021 psi | 74% | 2717 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,027 psi | 56% | 2562 fps | 96% |
| Vihtavuori N555 | <<locked>> | 84% | 30,487 psi | 49% | 2507 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,896 psi | 56% | 2536 fps | 98.4% |
| Winchester 760 | <<locked>> | 84% | 41,611 psi | 67% | 2733 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 88% | 28,123 psi | 45% | 2510 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,240 psi | 79% | 2822 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 48,428 psi | 78% | 2828 fps | 95.6% |
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 98 powders for .300 H&H Mag. loaded with the .308 | 165gr | Brenneke TOG. Alliant Reloder-26 delivers the highest muzzle velocity at 3,064 fps; across all powders the maximum-charge window runs from 1,814 fps to 3,064 fps. Accurate 3100 gives the best case fill at 100 %, and 98 of the 98 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. The 165.0 gr projectile in 0.308" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, Alliant Reloder-19 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, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .300 H&H Mag. with the .308 | 165gr | Brenneke TOG 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.