Load Specifications
Load data in caliber .300 H&H Mag. with .308 | 175gr | Berger VLD Target bullet and 95 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.
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>> | 84% | 55,027 psi | 88% | 2736 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 52,939 psi | 85% | 2743 fps | 97.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 49,559 psi | 79% | 2776 fps | 98.7% |
| Accurate 4064 | <<locked>> | 86% | 55,187 psi | 88% | 2789 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 55,666 psi | 89% | 2887 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 54,650 psi | 88% | 2815 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 55,622 psi | 89% | 2818 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 53,330 psi | 86% | 2871 fps | 97.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 54,665 psi | 88% | 2940 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 53,069 psi | 85% | 2864 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 56,231 psi | 90% | 2841 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 53,055 psi | 85% | 2812 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 56,260 psi | 90% | 2940 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 54,114 psi | 87% | 2917 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 55,869 psi | 90% | 2913 fps | 97.8% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 49,298 psi | 79% | 2851 fps | 96.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,557 psi | 75% | 2799 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,727 psi | 65% | 2707 fps | 97.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 53,069 psi | 85% | 2982 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 54,259 psi | 87% | 2828 fps | 100% |
| Bofors RP3 | <<locked>> | 86% | 53,359 psi | 86% | 2805 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 49,298 psi | 79% | 2851 fps | 96.6% |
| Bofors RP7 | <<locked>> | 90% | 53,171 psi | 85% | 2785 fps | 98.1% |
| Hodgdon H380 | <<locked>> | 86% | 54,085 psi | 87% | 2822 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 92% | 54,462 psi | 87% | 2884 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 90% | 54,447 psi | 87% | 2844 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 82% | 55,230 psi | 89% | 2825 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 53,026 psi | 85% | 2818 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 55,187 psi | 88% | 2861 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 54,534 psi | 87% | 2920 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,201 psi | 58% | 1749 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 56,333 psi | 90% | 2828 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 55,767 psi | 89% | 2802 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 55,230 psi | 89% | 2805 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 54,520 psi | 87% | 2782 fps | 98.7% |
| IMR 4350 | <<locked>> | 94% | 53,780 psi | 86% | 2815 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 90% | 54,853 psi | 88% | 2815 fps | 98.7% |
| IMR 4831 | <<locked>> | 96% | 55,970 psi | 90% | 2877 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 54,418 psi | 87% | 2838 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 56,304 psi | 90% | 2851 fps | 96% |
| Lovex D073.6 | <<locked>> | 82% | 54,824 psi | 88% | 2792 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 53,519 psi | 86% | 2740 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 55,274 psi | 89% | 2795 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 54,592 psi | 88% | 2808 fps | 99.5% |
| Lovex S070 | <<locked>> | 94% | 55,927 psi | 90% | 2851 fps | 99% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,205 psi | 66% | 2625 fps | 97.1% |
| Norma 201 | <<locked>> | 82% | 53,258 psi | 85% | 2756 fps | 100% |
| Norma 202 | <<locked>> | 82% | 54,099 psi | 87% | 2759 fps | 100% |
| Norma 203B | <<locked>> | 86% | 55,840 psi | 90% | 2851 fps | 100% |
| Norma 204 | <<locked>> | 94% | 54,476 psi | 87% | 2867 fps | 97.3% |
| Norma MRPᴾ | <<locked>> | 100% | 52,388 psi | 84% | 2936 fps | 98.5% |
| Norma URP | <<locked>> | 94% | 54,433 psi | 87% | 2871 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 84% | 52,968 psi | 85% | 2822 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 53,185 psi | 85% | 2871 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,709 psi | 59% | 1788 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 54,143 psi | 87% | 2805 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 53,809 psi | 86% | 2877 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 53,490 psi | 86% | 2910 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 55,521 psi | 89% | 2910 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 54,172 psi | 87% | 2936 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 84% | 54,070 psi | 87% | 2762 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 53,490 psi | 86% | 2802 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 55,100 psi | 88% | 2841 fps | 96.3% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 55,071 psi | 88% | 2897 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 90% | 53,171 psi | 85% | 2785 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 92% | 54,592 psi | 88% | 2808 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 82% | 54,824 psi | 88% | 2792 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 55,274 psi | 89% | 2795 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 55,927 psi | 90% | 2851 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 54,998 psi | 88% | 2858 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 55,811 psi | 89% | 2822 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 56,434 psi | 90% | 2838 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 54,259 psi | 87% | 2694 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 54,998 psi | 88% | 2697 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 54,679 psi | 88% | 2766 fps | 98.7% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 54,563 psi | 87% | 2894 fps | 97.6% |
| Somchem S335 | <<locked>> | 82% | 53,882 psi | 86% | 2690 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 55,259 psi | 89% | 2805 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 53,737 psi | 86% | 2799 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 53,200 psi | 85% | 2877 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 55,637 psi | 89% | 2874 fps | 98.5% |
| Vihtavuori N133 | <<locked>> | 82% | 54,752 psi | 88% | 2677 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 54,099 psi | 87% | 2723 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 54,491 psi | 87% | 2740 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 55,027 psi | 88% | 2779 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 53,098 psi | 85% | 2815 fps | 99.8% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 48,066 psi | 77% | 2736 fps | 96.7% |
| Vihtavuori N540 | <<locked>> | 86% | 56,159 psi | 90% | 2782 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 55,753 psi | 89% | 2874 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 52,228 psi | 84% | 2877 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 52,721 psi | 85% | 2789 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 54,462 psi | 87% | 2884 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,887 psi | 67% | 2838 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 52,924 psi | 85% | 2792 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 52,373 psi | 84% | 2812 fps | 96.9% |
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% | 48,312 psi | 77% | 2641 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,572 psi | 75% | 2635 fps | 96.5% |
| Accurate 3100 | <<locked>> | 90% | 35,157 psi | 56% | 2497 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 45,759 psi | 73% | 2644 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,403 psi | 55% | 2493 fps | 96.7% |
| ADI AR 2206H | <<locked>> | 80% | 51,227 psi | 82% | 2762 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 43,584 psi | 70% | 2615 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 94% | 46,688 psi | 75% | 2753 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,558 psi | 76% | 2822 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 46,746 psi | 75% | 2753 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,729 psi | 70% | 2638 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,804 psi | 75% | 2707 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,026 psi | 55% | 2503 fps | 96.8% |
| Alliant Reloder-17 | 57.5 gr | 80% | 38,232 psi | 61% | 2631 fps | 99.3% |
| Alliant Reloder-19 | <<locked>> | 94% | 46,180 psi | 74% | 2746 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 98% | 46,296 psi | 74% | 2795 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 84% | 28,108 psi | 45% | 2365 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 96% | 35,984 psi | 58% | 2589 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 86% | 32,126 psi | 52% | 2533 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,952 psi | 82% | 2776 fps | 99.8% |
| Bofors RP3 | <<locked>> | 80% | 43,874 psi | 70% | 2648 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 46,296 psi | 74% | 2795 fps | 95.8% |
| Bofors RP7 | <<locked>> | 82% | 41,379 psi | 66% | 2569 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 44,367 psi | 71% | 2657 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 82% | 38,914 psi | 62% | 2595 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 84% | 45,063 psi | 72% | 2677 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 51,779 psi | 83% | 2772 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,473 psi | 50% | 2402 fps | 97.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,153 psi | 77% | 2753 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 40,886 psi | 66% | 2667 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,050 psi | 43% | 1562 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,501 psi | 79% | 2723 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 52,301 psi | 84% | 2756 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,774 psi | 73% | 2651 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 48,008 psi | 77% | 2674 fps | 97.6% |
| IMR 4350 | <<locked>> | 86% | 41,974 psi | 67% | 2605 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,248 psi | 65% | 2546 fps | 95.5% |
| IMR 4831 | <<locked>> | 80% | 33,185 psi | 53% | 2448 fps | 96.4% |
| IMR 4895 | <<locked>> | 80% | 47,993 psi | 77% | 2733 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 98% | 53,040 psi | 85% | 2802 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 80% | 51,343 psi | 82% | 2740 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,444 psi | 81% | 2694 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 45,919 psi | 74% | 2648 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,869 psi | 61% | 2500 fps | 96.4% |
| Lovex S070 | <<locked>> | 82% | 38,522 psi | 62% | 2533 fps | 95.3% |
| Lovex S071 | <<locked>> | 96% | 36,201 psi | 58% | 2520 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 50,096 psi | 80% | 2710 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,676 psi | 81% | 2710 fps | 100% |
| Norma 203B | <<locked>> | 80% | 46,166 psi | 74% | 2694 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 47,674 psi | 76% | 2749 fps | 95.7% |
| Norma MRP | <<locked>> | 92% | 39,856 psi | 64% | 2694 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 34,447 psi | 55% | 2490 fps | 96.6% |
| Ramshot Big Game | <<locked>> | 80% | 46,282 psi | 74% | 2713 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 35,723 psi | 57% | 2530 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,398 psi | 44% | 1598 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,498 psi | 71% | 2638 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 50,299 psi | 81% | 2818 fps | 99.9% |
| ReloadSwiss RS 60 | 57.5 gr | 80% | 40,654 psi | 65% | 2690 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,011 psi | 55% | 2507 fps | 96.2% |
| ReloadSwiss RS 70 | 58.4 gr | 80% | 33,547 psi | 54% | 2510 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 47,674 psi | 76% | 2661 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,292 psi | 66% | 2595 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 96% | 51,561 psi | 83% | 2785 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 94% | 45,049 psi | 72% | 2726 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 82% | 41,379 psi | 66% | 2569 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,869 psi | 61% | 2500 fps | 96.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 51,343 psi | 82% | 2740 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,919 psi | 74% | 2648 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 38,522 psi | 62% | 2533 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,337 psi | 68% | 2648 fps | 99.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 52,054 psi | 83% | 2762 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,705 psi | 80% | 2733 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,039 psi | 82% | 2648 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,975 psi | 69% | 2516 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 39,581 psi | 63% | 2497 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 44,628 psi | 72% | 2720 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 50,792 psi | 81% | 2648 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,837 psi | 83% | 2756 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 41,756 psi | 67% | 2595 fps | 99.6% |
| Somchem S365 | <<locked>> | 80% | 30,966 psi | 50% | 2448 fps | 98.6% |
| Somchem S385 | <<locked>> | 92% | 42,873 psi | 69% | 2654 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 51,547 psi | 83% | 2635 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,718 psi | 77% | 2631 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,051 psi | 77% | 2644 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,813 psi | 64% | 2530 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 35,810 psi | 57% | 2493 fps | 97% |
| Vihtavuori N165 | <<locked>> | 96% | 42,177 psi | 68% | 2631 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 46,441 psi | 74% | 2638 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,360 psi | 57% | 2493 fps | 96.6% |
| Vihtavuori N555 | <<locked>> | 82% | 28,776 psi | 46% | 2388 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,230 psi | 56% | 2467 fps | 98.8% |
| Winchester 760 | <<locked>> | 82% | 39,131 psi | 63% | 2598 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 86% | 26,426 psi | 42% | 2385 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,617 psi | 80% | 2743 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 45,571 psi | 73% | 2697 fps | 95.3% |
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 95 powders for .300 H&H Mag. loaded with the .308 | 175gr | Berger VLD Target. Alliant Reloder-26 delivers the highest muzzle velocity at 2,982 fps; across all powders the maximum-charge window runs from 1,749 fps to 2,982 fps. Accurate 3100 gives the best case fill at 100 %, and 95 of the 95 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 175.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-19, Alliant Reloder-22 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 | 175gr | Berger VLD Target 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.