Load Specifications
Bullet:.308 | 170gr | Speer Hot-Cor
Bullet Manufacturer:Speer
Bullet Weight:170 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:.308 Norma Mag. load data
Case Length (l3):2.559"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:86.5 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:14.5
Load data in caliber .308 Norma Mag. with .308 | 170gr | Speer Hot-Cor bullet and 101 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 70 and Alliant Reloder-16.
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% | 56,652 psi | 89% | 2825 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 54,476 psi | 85% | 2838 fps | 98.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,677 psi | 81% | 2874 fps | 99.1% |
| Accurate 4064 | <<locked>> | 86% | 56,913 psi | 89% | 2877 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 57,682 psi | 90% | 2986 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 56,318 psi | 88% | 3068 fps | 97.1% |
| ADI AR 2206H | <<locked>> | 82% | 56,072 psi | 88% | 2907 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 57,014 psi | 89% | 2910 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 54,955 psi | 86% | 2966 fps | 97.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 56,405 psi | 88% | 3035 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 54,984 psi | 86% | 2963 fps | 97.6% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 54,984 psi | 86% | 2963 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 54,230 psi | 85% | 2881 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 54,578 psi | 86% | 2904 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 54,650 psi | 86% | 2986 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 55,999 psi | 88% | 3015 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 54,201 psi | 85% | 2953 fps | 97.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 51,184 psi | 80% | 2949 fps | 97.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,443 psi | 76% | 2894 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,366 psi | 66% | 2805 fps | 98.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 55,593 psi | 87% | 3087 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 55,912 psi | 88% | 2923 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,123 psi | 74% | 2871 fps | 95.9% |
| Bofors RP3 | <<locked>> | 86% | 55,013 psi | 86% | 2897 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 51,184 psi | 80% | 2949 fps | 97.1% |
| Bofors RP7 | <<locked>> | 90% | 54,708 psi | 86% | 2881 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 86% | 55,579 psi | 87% | 2913 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 92% | 56,202 psi | 88% | 2982 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 90% | 56,072 psi | 88% | 2940 fps | 98.1% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 56,434 psi | 88% | 2959 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 82% | 56,681 psi | 89% | 2917 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 54,998 psi | 86% | 2910 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 56,739 psi | 89% | 2949 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 56,434 psi | 88% | 3018 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,230 psi | 57% | 1804 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 57,609 psi | 90% | 2913 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 57,145 psi | 90% | 2890 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 56,507 psi | 89% | 2894 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 55,825 psi | 87% | 2874 fps | 98.9% |
| IMR 4350 | <<locked>> | 94% | 55,390 psi | 87% | 2910 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 90% | 56,347 psi | 88% | 2907 fps | 98.9% |
| IMR 4831 | <<locked>> | 94% | 54,215 psi | 85% | 2920 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 55,999 psi | 88% | 2933 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 54,549 psi | 85% | 2894 fps | 95.7% |
| Lovex D073.6 | <<locked>> | 82% | 56,434 psi | 88% | 2881 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 54,752 psi | 86% | 2828 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 56,826 psi | 89% | 2887 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 56,347 psi | 88% | 2904 fps | 99.7% |
| Lovex S070 | <<locked>> | 94% | 57,464 psi | 90% | 2946 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,786 psi | 67% | 2717 fps | 97.5% |
| Norma 201 | <<locked>> | 82% | 54,781 psi | 86% | 2848 fps | 100% |
| Norma 202 | <<locked>> | 82% | 55,405 psi | 87% | 2848 fps | 100% |
| Norma 203B | <<locked>> | 86% | 57,493 psi | 90% | 2943 fps | 100% |
| Norma 204 | <<locked>> | 94% | 56,202 psi | 88% | 2963 fps | 97.6% |
| Norma MRPᴾ | <<locked>> | 100% | 54,433 psi | 85% | 3038 fps | 98.9% |
| Norma URP | <<locked>> | 94% | 56,101 psi | 88% | 2966 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 54,578 psi | 86% | 2917 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 54,955 psi | 86% | 2966 fps | 99.4% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 44,759 psi | 70% | 2805 fps | 96.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,927 psi | 58% | 1847 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 55,622 psi | 87% | 2897 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 55,477 psi | 87% | 2972 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 55,593 psi | 87% | 3009 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 57,609 psi | 90% | 3009 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 55,941 psi | 88% | 3035 fps | 100% |
| Rottweil R 902 | <<locked>> | 84% | 55,288 psi | 87% | 2848 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 55,158 psi | 86% | 2894 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 56,768 psi | 89% | 2936 fps | 96.8% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 57,014 psi | 89% | 2995 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 90% | 54,708 psi | 86% | 2881 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 92% | 56,347 psi | 88% | 2904 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 56,434 psi | 88% | 2881 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 56,826 psi | 89% | 2887 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 57,464 psi | 90% | 2946 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 56,753 psi | 89% | 2953 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 57,232 psi | 90% | 2910 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 54,404 psi | 85% | 2877 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 55,506 psi | 87% | 2779 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 56,304 psi | 88% | 2782 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 56,188 psi | 88% | 2858 fps | 99% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 56,507 psi | 89% | 2992 fps | 98% |
| Somchem S335 | <<locked>> | 82% | 55,361 psi | 87% | 2779 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 56,913 psi | 89% | 2897 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 55,129 psi | 86% | 2890 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 55,390 psi | 87% | 2969 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 57,580 psi | 90% | 2972 fps | 98.8% |
| Vihtavuori N133 | <<locked>> | 82% | 56,028 psi | 88% | 2762 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 55,651 psi | 87% | 2812 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 55,840 psi | 88% | 2825 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 56,608 psi | 89% | 2867 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 54,766 psi | 86% | 2907 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,937 psi | 78% | 2835 fps | 97.2% |
| Vihtavuori N540 | <<locked>> | 86% | 57,609 psi | 90% | 2871 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 57,624 psi | 90% | 2969 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 54,128 psi | 85% | 2969 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 54,868 psi | 86% | 3025 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 54,433 psi | 85% | 2877 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 56,449 psi | 88% | 2986 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,613 psi | 68% | 2940 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 54,491 psi | 85% | 2884 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 54,157 psi | 85% | 2910 fps | 97.4% |
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% | 49,676 psi | 78% | 2726 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,674 psi | 75% | 2720 fps | 96.9% |
| Accurate 3100 | <<locked>> | 90% | 36,666 psi | 57% | 2589 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 47,036 psi | 74% | 2730 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,607 psi | 56% | 2579 fps | 97.1% |
| Accurate High Country | <<locked>> | 96% | 48,994 psi | 77% | 2943 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 52,518 psi | 82% | 2851 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,672 psi | 70% | 2703 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 92% | 45,266 psi | 71% | 2789 fps | 95.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,994 psi | 77% | 2913 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 45,208 psi | 71% | 2789 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 45,208 psi | 71% | 2789 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,092 psi | 71% | 2730 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,080 psi | 75% | 2795 fps | 99.8% |
| Alliant Reloder-16 | 56.7 gr | 80% | 35,012 psi | 55% | 2592 fps | 97.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,363 psi | 62% | 2717 fps | 99.5% |
| Alliant Reloder-19 | <<locked>> | 92% | 44,657 psi | 70% | 2779 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 44,860 psi | 70% | 2831 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 82% | 27,311 psi | 43% | 2395 fps | 95.3% |
| Alliant Reloder-25 | <<locked>> | 94% | 34,954 psi | 55% | 2621 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 86% | 33,460 psi | 52% | 2631 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 52,228 psi | 82% | 2864 fps | 99.9% |
| Bofors RP15 | <<locked>> | 98% | 44,019 psi | 69% | 2812 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 45,136 psi | 71% | 2736 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 44,860 psi | 70% | 2831 fps | 95.5% |
| Bofors RP7 | <<locked>> | 82% | 42,641 psi | 67% | 2657 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 45,716 psi | 72% | 2746 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 82% | 40,248 psi | 63% | 2687 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 82% | 43,381 psi | 68% | 2710 fps | 95.2% |
| Hodgdon H4831 | <<locked>> | 98% | 52,692 psi | 83% | 2900 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 53,113 psi | 83% | 2861 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,489 psi | 51% | 2487 fps | 97.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,705 psi | 78% | 2841 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 42,351 psi | 66% | 2759 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,050 psi | 42% | 1611 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,778 psi | 80% | 2812 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 53,592 psi | 84% | 2841 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,934 psi | 74% | 2736 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,327 psi | 77% | 2766 fps | 97.9% |
| IMR 4350 | <<locked>> | 84% | 40,567 psi | 64% | 2635 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,350 psi | 65% | 2635 fps | 95.9% |
| IMR 4831 | <<locked>> | 80% | 34,330 psi | 54% | 2536 fps | 96.8% |
| IMR 4895 | <<locked>> | 80% | 49,298 psi | 77% | 2825 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 51,343 psi | 80% | 2841 fps | 95% |
| Lovex D073.6 | <<locked>> | 80% | 52,794 psi | 83% | 2828 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,561 psi | 81% | 2779 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 47,108 psi | 74% | 2736 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,841 psi | 61% | 2582 fps | 96.7% |
| Lovex S070 | <<locked>> | 82% | 39,537 psi | 62% | 2615 fps | 95.7% |
| Lovex S071 | <<locked>> | 94% | 35,331 psi | 55% | 2556 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 51,314 psi | 80% | 2795 fps | 100% |
| Norma 202 | <<locked>> | 80% | 52,112 psi | 82% | 2799 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,427 psi | 74% | 2782 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 45,861 psi | 72% | 2782 fps | 95.3% |
| Norma MRP | <<locked>> | 92% | 41,176 psi | 65% | 2785 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 35,621 psi | 56% | 2579 fps | 97% |
| Ramshot Big Game | <<locked>> | 80% | 47,616 psi | 75% | 2802 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 36,869 psi | 58% | 2618 fps | 95.6% |
| Ramshot Magnum | <<locked>> | 98% | 41,713 psi | 65% | 2743 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,557 psi | 43% | 1650 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,629 psi | 72% | 2726 fps | 97.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,808 psi | 81% | 2913 fps | 100% |
| ReloadSwiss RS 60 | 61 gr | 80% | 41,858 psi | 66% | 2776 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,346 psi | 55% | 2595 fps | 96.7% |
| ReloadSwiss RS 70 | 62 gr | 80% | 34,577 psi | 54% | 2598 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 48,936 psi | 77% | 2749 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,627 psi | 67% | 2684 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 49,879 psi | 78% | 2822 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 92% | 43,656 psi | 68% | 2762 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 82% | 42,641 psi | 67% | 2657 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,841 psi | 61% | 2582 fps | 96.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,794 psi | 83% | 2828 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 47,108 psi | 74% | 2736 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 39,537 psi | 62% | 2615 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,613 psi | 68% | 2733 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 53,403 psi | 84% | 2851 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 51,024 psi | 80% | 2822 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 52,141 psi | 82% | 2733 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,990 psi | 69% | 2598 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,000 psi | 60% | 2523 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 43,250 psi | 68% | 2756 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 51,924 psi | 81% | 2730 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 53,098 psi | 83% | 2841 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,888 psi | 67% | 2680 fps | 99.7% |
| Somchem S365 | <<locked>> | 80% | 32,082 psi | 50% | 2533 fps | 98.9% |
| Somchem S385 | <<locked>> | 90% | 41,597 psi | 65% | 2690 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 52,678 psi | 83% | 2717 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 49,008 psi | 77% | 2717 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,385 psi | 77% | 2730 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,031 psi | 64% | 2615 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 36,927 psi | 58% | 2579 fps | 97.4% |
| Vihtavuori N165 | <<locked>> | 96% | 43,569 psi | 68% | 2720 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 47,703 psi | 75% | 2723 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,492 psi | 57% | 2579 fps | 97% |
| Vihtavuori N555 | <<locked>> | 82% | 29,849 psi | 47% | 2470 fps | 95.5% |
| Vihtavuori N560 | <<locked>> | 98% | 51,285 psi | 80% | 2963 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,187 psi | 57% | 2549 fps | 99.1% |
| Winchester 760 | <<locked>> | 82% | 40,422 psi | 63% | 2690 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 86% | 27,398 psi | 43% | 2480 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 51,039 psi | 80% | 2828 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 47,036 psi | 74% | 2789 fps | 95.8% |
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 101 powders for .308 Norma Mag. loaded with the .308 | 170gr | Speer Hot-Cor. Alliant Reloder-26 delivers the highest muzzle velocity at 3,087 fps; across all powders the maximum-charge window runs from 1,804 fps to 3,087 fps. Accurate 3100 gives the best case fill at 100 %, and 101 of the 101 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.308" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, 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 60, ReloadSwiss RS 70, Alliant Reloder-16 rank at the top here: for .308 Norma Mag. with the .308 | 170gr | Speer Hot-Cor 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.