Load Specifications
Load data in caliber .308 Norma Mag. with .308 | 166gr | Peregrine Glider GRM bullet and 102 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% | 54,621 psi | 86% | 2785 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,768 psi | 89% | 2851 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,129 psi | 86% | 2874 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,999 psi | 88% | 2867 fps | 97.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,338 psi | 69% | 2766 fps | 97.2% |
| Accurate 4064 | <<locked>> | 90% | 57,159 psi | 90% | 2907 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,725 psi | 90% | 3005 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 86% | 57,406 psi | 90% | 2943 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 55,013 psi | 86% | 2894 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,199 psi | 82% | 2927 fps | 96.1% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,173 psi | 88% | 2890 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,667 psi | 90% | 2861 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,638 psi | 90% | 3071 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 54,505 psi | 85% | 2900 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,201 psi | 87% | 2917 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,579 psi | 87% | 2936 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,172 psi | 86% | 3012 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,478 psi | 89% | 3041 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,242 psi | 80% | 2917 fps | 96.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,061 psi | 66% | 2795 fps | 99.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,688 psi | 75% | 2972 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,450 psi | 90% | 2963 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 55,927 psi | 88% | 2933 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,695 psi | 87% | 2904 fps | 97.9% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,273 psi | 85% | 2822 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,753 psi | 87% | 2920 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,652 psi | 89% | 2946 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 96% | 56,956 psi | 89% | 3009 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 94% | 57,217 psi | 90% | 2966 fps | 97.6% |
| Hodgdon H4895 | <<locked>> | 84% | 54,346 psi | 85% | 2900 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 55,187 psi | 86% | 2933 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,230 psi | 85% | 2936 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,522 psi | 90% | 3045 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,563 psi | 56% | 1788 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,709 psi | 87% | 2904 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,621 psi | 86% | 2881 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 54,505 psi | 85% | 2874 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,696 psi | 90% | 2910 fps | 98.6% |
| IMR 4350 | <<locked>> | 98% | 56,463 psi | 88% | 2936 fps | 98.1% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,624 psi | 90% | 2936 fps | 98.6% |
| IMR 4831 | <<locked>> | 98% | 54,534 psi | 85% | 2943 fps | 99.8% |
| IMR 4895 | <<locked>> | 88% | 57,000 psi | 89% | 2966 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,173 psi | 88% | 2890 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,508 psi | 90% | 2917 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,608 psi | 89% | 2867 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,682 psi | 90% | 2920 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,985 psi | 89% | 2927 fps | 99.4% |
| Lovex S070 | <<locked>> | 96% | 54,824 psi | 86% | 2917 fps | 98.5% |
| Norma 201 | <<locked>> | 86% | 55,825 psi | 87% | 2884 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,579 psi | 89% | 2884 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,766 psi | 86% | 2923 fps | 100% |
| Norma 204 | <<locked>> | 98% | 57,334 psi | 90% | 2989 fps | 97.1% |
| Norma MRPᴾ | <<locked>> | 100% | 47,224 psi | 74% | 2923 fps | 96.8% |
| Norma URP | <<locked>> | 98% | 56,652 psi | 89% | 2992 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 55,622 psi | 87% | 2949 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,506 psi | 87% | 2992 fps | 99.1% |
| Ramshot TAC | <<locked>> | 84% | 56,579 psi | 89% | 2913 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,275 psi | 88% | 2930 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,942 psi | 89% | 2894 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,187 psi | 57% | 1831 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,855 psi | 89% | 2930 fps | 99% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,521 psi | 89% | 3009 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 56,188 psi | 88% | 3041 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,696 psi | 90% | 3031 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 57,072 psi | 89% | 3064 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 84% | 56,637 psi | 89% | 2861 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,420 psi | 88% | 2884 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,796 psi | 87% | 2923 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,082 psi | 78% | 2897 fps | 96.1% |
| Rottweil R 907 | <<locked>> | 94% | 55,695 psi | 87% | 2904 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,985 psi | 89% | 2927 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,508 psi | 90% | 2917 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,682 psi | 90% | 2920 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,824 psi | 86% | 2917 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,099 psi | 85% | 2933 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,042 psi | 86% | 2890 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,883 psi | 88% | 2917 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,305 psi | 90% | 2818 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,462 psi | 85% | 2772 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,464 psi | 90% | 2884 fps | 98.6% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,603 psi | 78% | 2890 fps | 95.9% |
| Somchem S321 | <<locked>> | 82% | 57,566 psi | 90% | 2923 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,666 psi | 89% | 2815 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,839 psi | 86% | 2884 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,941 psi | 88% | 2920 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,940 psi | 86% | 2992 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,618 psi | 79% | 2874 fps | 97% |
| Vihtavuori N130 | <<locked>> | 82% | 57,058 psi | 89% | 2779 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,667 psi | 90% | 2802 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,521 psi | 89% | 2844 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,305 psi | 90% | 2864 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,537 psi | 90% | 2897 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,564 psi | 87% | 2936 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 84% | 56,637 psi | 89% | 2887 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,317 psi | 87% | 2858 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,505 psi | 85% | 2940 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,514 psi | 73% | 2871 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,593 psi | 87% | 2910 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 57,145 psi | 90% | 2940 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,956 psi | 89% | 3009 fps | 98.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,681 psi | 59% | 2812 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,999 psi | 88% | 2923 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% | 51,256 psi | 80% | 2736 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,453 psi | 68% | 2657 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,488 psi | 81% | 2822 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 45,905 psi | 72% | 2697 fps | 95.6% |
| Accurate 3100 | <<locked>> | 96% | 38,479 psi | 60% | 2648 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 41,176 psi | 65% | 2654 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 32,779 psi | 51% | 2533 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 47,311 psi | 74% | 2782 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 40,176 psi | 63% | 2628 fps | 98.2% |
| ADI AR 2209 | <<locked>> | 98% | 48,994 psi | 77% | 2871 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,472 psi | 78% | 2785 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,517 psi | 79% | 2766 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,555 psi | 68% | 2825 fps | 98.9% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 47,921 psi | 75% | 2792 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,943 psi | 63% | 2648 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,902 psi | 67% | 2713 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 82% | 33,011 psi | 52% | 2552 fps | 95.5% |
| Alliant Reloder-17 | 56.9 gr | 80% | 34,679 psi | 54% | 2625 fps | 98% |
| Alliant Reloder-19 | <<locked>> | 98% | 47,906 psi | 75% | 2854 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 88% | 28,543 psi | 45% | 2451 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 92% | 35,447 psi | 56% | 2697 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,775 psi | 73% | 2785 fps | 99.1% |
| Bofors RP3 | <<locked>> | 80% | 39,697 psi | 62% | 2651 fps | 99.3% |
| Bofors RP7 | <<locked>> | 86% | 43,236 psi | 68% | 2680 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,111 psi | 80% | 2772 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,820 psi | 77% | 2812 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,495 psi | 63% | 2661 fps | 97.3% |
| Hodgdon H414 | <<locked>> | 86% | 40,495 psi | 63% | 2707 fps | 95% |
| Hodgdon H4350 | <<locked>> | 88% | 47,108 psi | 74% | 2795 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 47,776 psi | 75% | 2792 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,427 psi | 45% | 2395 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,034 psi | 69% | 2766 fps | 99.8% |
| Hodgdon Superformance | 66.1 gr | 88% | 42,917 psi | 67% | 2785 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,556 psi | 42% | 1601 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,803 psi | 72% | 2743 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 47,921 psi | 75% | 2782 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,206 psi | 66% | 2661 fps | 98.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,599 psi | 70% | 2684 fps | 96.1% |
| IMR 4350 | <<locked>> | 90% | 43,772 psi | 69% | 2717 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 84% | 42,177 psi | 66% | 2661 fps | 95.3% |
| IMR 4831 | <<locked>> | 82% | 31,821 psi | 50% | 2493 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 43,976 psi | 69% | 2746 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 80% | 49,472 psi | 78% | 2785 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,833 psi | 73% | 2759 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,992 psi | 74% | 2713 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 42,047 psi | 66% | 2661 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 36,869 psi | 58% | 2556 fps | 95.3% |
| Lovex S070 | <<locked>> | 86% | 39,842 psi | 62% | 2638 fps | 95% |
| Norma 201 | <<locked>> | 80% | 46,093 psi | 72% | 2726 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,644 psi | 73% | 2733 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,264 psi | 66% | 2703 fps | 99.1% |
| Norma 204 | <<locked>> | 94% | 49,893 psi | 78% | 2867 fps | 95.5% |
| Norma MRP | <<locked>> | 98% | 44,048 psi | 69% | 2858 fps | 95.9% |
| Norma URP | <<locked>> | 82% | 33,214 psi | 52% | 2539 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 42,279 psi | 66% | 2723 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 39,610 psi | 62% | 2697 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 49,574 psi | 78% | 2802 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,153 psi | 77% | 2818 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,447 psi | 84% | 2841 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,818 psi | 42% | 1637 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,886 psi | 64% | 2644 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,788 psi | 72% | 2828 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,985 psi | 58% | 2690 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 35,114 psi | 55% | 2615 fps | 95.9% |
| ReloadSwiss RS 70 | 62.1 gr | 86% | 37,420 psi | 59% | 2684 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 50,082 psi | 78% | 2762 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,976 psi | 69% | 2680 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 37,246 psi | 58% | 2595 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 98% | 46,615 psi | 73% | 2835 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 86% | 43,236 psi | 68% | 2680 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 82% | 36,869 psi | 58% | 2556 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,833 psi | 73% | 2759 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,047 psi | 66% | 2661 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 86% | 39,842 psi | 62% | 2638 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,566 psi | 60% | 2651 fps | 98.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,892 psi | 75% | 2776 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,919 psi | 72% | 2749 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,587 psi | 75% | 2677 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,726 psi | 62% | 2543 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,249 psi | 65% | 2605 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 46,166 psi | 72% | 2828 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 53,679 psi | 84% | 2867 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 47,021 psi | 74% | 2674 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,572 psi | 75% | 2769 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 38,014 psi | 60% | 2598 fps | 98.7% |
| Somchem S365 | <<locked>> | 80% | 27,644 psi | 43% | 2428 fps | 96.6% |
| Somchem S385 | <<locked>> | 96% | 44,338 psi | 69% | 2759 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 53,621 psi | 84% | 2733 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,066 psi | 75% | 2667 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,816 psi | 69% | 2657 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,237 psi | 69% | 2667 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,230 psi | 57% | 2536 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 82% | 34,679 psi | 54% | 2546 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 80% | 49,690 psi | 78% | 2782 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,699 psi | 67% | 2657 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 34,127 psi | 53% | 2543 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 88% | 31,024 psi | 49% | 2530 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,024 psi | 50% | 2461 fps | 97.2% |
| Winchester 748 | <<locked>> | 80% | 49,922 psi | 78% | 2835 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 40,654 psi | 64% | 2713 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 92% | 28,776 psi | 45% | 2533 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,600 psi | 71% | 2756 fps | 99.8% |
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 121 powders for .308 Norma Mag. loaded with the .308 | 166gr | Peregrine Glider GRM. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,071 fps; across all powders the maximum-charge window runs from 1,788 fps to 3,071 fps. Accurate 3100 gives the best case fill at 100 %, and 121 of the 121 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 166.0 gr projectile in 0.308" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, Accurate MAGPRO 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 .308 Norma Mag. with the .308 | 166gr | Peregrine Glider GRM they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate High Country, Accurate MAGPRO, ADI AR 2213 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.