Load Specifications
Load data in caliber .300 WSM with .308 | 166gr | Peregrine Glider (Glider Tactical) bullet and 101 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, 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>> | 84% | 54,737 psi | 86% | 2772 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 56,768 psi | 89% | 2848 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 56,623 psi | 89% | 2838 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 57,406 psi | 90% | 2904 fps | 100% |
| Accurate 2700 | <<locked>> | 94% | 57,595 psi | 90% | 2858 fps | 97.5% |
| Accurate 4064 | <<locked>> | 92% | 56,507 psi | 89% | 2887 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 57,058 psi | 89% | 2982 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 88% | 57,609 psi | 90% | 2930 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 55,129 psi | 86% | 2877 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,536 psi | 89% | 2881 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 57,493 psi | 90% | 2848 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 57,725 psi | 90% | 3058 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 55,114 psi | 86% | 2900 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 57,696 psi | 90% | 2818 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,535 psi | 87% | 2920 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,549 psi | 85% | 2982 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 96% | 55,941 psi | 88% | 3022 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,769 psi | 61% | 2710 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,526 psi | 68% | 2874 fps | 98.1% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 57,580 psi | 90% | 2946 fps | 99.9% |
| Bofors RP3 | <<locked>> | 92% | 55,448 psi | 87% | 2910 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 55,666 psi | 87% | 2884 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,752 psi | 86% | 2812 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 56,043 psi | 88% | 2910 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 54,433 psi | 85% | 2956 fps | 99.9% |
| Hodgdon H322 | <<locked>> | 84% | 56,623 psi | 89% | 2861 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 56,724 psi | 89% | 2930 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 94% | 54,201 psi | 85% | 2946 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 98% | 55,042 psi | 86% | 2913 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 86% | 54,578 psi | 86% | 2887 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,778 psi | 80% | 2858 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 54,157 psi | 85% | 2923 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 57,392 psi | 90% | 3022 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,273 psi | 55% | 1759 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 54,824 psi | 86% | 2874 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 56,449 psi | 88% | 2894 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 57,246 psi | 90% | 2900 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 94% | 56,463 psi | 88% | 2871 fps | 98.1% |
| IMR 4350ᴾ | <<locked>> | 100% | 56,246 psi | 88% | 2910 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 96% | 57,725 psi | 90% | 2917 fps | 98.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,761 psi | 75% | 2822 fps | 99% |
| IMR 4895 | <<locked>> | 90% | 56,956 psi | 89% | 2949 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 56,536 psi | 89% | 2881 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 56,478 psi | 89% | 2861 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 57,406 psi | 90% | 2904 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 56,898 psi | 89% | 2851 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 57,667 psi | 90% | 2904 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 57,029 psi | 89% | 2907 fps | 99.1% |
| Lovex S070 | <<locked>> | 98% | 54,259 psi | 85% | 2887 fps | 98% |
| Norma 201 | <<locked>> | 88% | 55,854 psi | 88% | 2867 fps | 100% |
| Norma 202 | <<locked>> | 88% | 56,869 psi | 89% | 2874 fps | 100% |
| Norma 203B | <<locked>> | 90% | 54,708 psi | 86% | 2907 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 57,116 psi | 90% | 2966 fps | 96.6% |
| Norma URPᴾ | <<locked>> | 100% | 55,985 psi | 88% | 2969 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 90% | 55,608 psi | 87% | 2936 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 54,955 psi | 86% | 2966 fps | 98.7% |
| Ramshot TAC | <<locked>> | 86% | 57,014 psi | 89% | 2904 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 86% | 56,449 psi | 88% | 2917 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 57,421 psi | 90% | 2881 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,679 psi | 56% | 1801 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 56,028 psi | 88% | 2858 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 57,174 psi | 90% | 2913 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 56,260 psi | 88% | 2992 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 55,796 psi | 87% | 3022 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 56,768 psi | 89% | 3002 fps | 99.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 56,492 psi | 89% | 3035 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 86% | 56,869 psi | 89% | 2848 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 56,550 psi | 89% | 2867 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 55,303 psi | 87% | 2904 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 55,666 psi | 87% | 2884 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 98% | 57,029 psi | 89% | 2907 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 88% | 57,406 psi | 90% | 2904 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 57,667 psi | 90% | 2904 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 54,259 psi | 85% | 2887 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 57,421 psi | 90% | 2969 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,303 psi | 87% | 2877 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 55,985 psi | 88% | 2900 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 57,682 psi | 90% | 2808 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 54,447 psi | 85% | 2759 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 57,624 psi | 90% | 2864 fps | 98.2% |
| Somchem S321 | <<locked>> | 82% | 54,041 psi | 85% | 2858 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 56,811 psi | 89% | 2802 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 55,042 psi | 86% | 2871 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 55,767 psi | 87% | 2900 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,459 psi | 79% | 2917 fps | 100% |
| Unknown powder | <<locked>> | 98% | 57,159 psi | 90% | 2976 fps | 99.5% |
| Vihtavuori N130 | <<locked>> | 84% | 56,130 psi | 88% | 2756 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 57,290 psi | 90% | 2785 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,275 psi | 88% | 2828 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 56,420 psi | 88% | 2838 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 57,072 psi | 89% | 2881 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,085 psi | 85% | 2894 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 84% | 56,159 psi | 88% | 2884 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 56,318 psi | 88% | 2871 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,346 psi | 85% | 2943 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,612 psi | 67% | 2789 fps | 98.7% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 55,564 psi | 87% | 2894 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 53,896 psi | 84% | 2881 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,201 psi | 85% | 2946 fps | 97.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,650 psi | 54% | 2707 fps | 98.5% |
| Winchester StaBALL Match | <<locked>> | 82% | 57,319 psi | 90% | 2927 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% | 48,341 psi | 76% | 2684 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 52,852 psi | 83% | 2795 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,567 psi | 64% | 2598 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,398 psi | 73% | 2740 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 47,137 psi | 74% | 2690 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 38,406 psi | 60% | 2592 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 34,708 psi | 54% | 2575 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 44,614 psi | 70% | 2717 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 37,884 psi | 59% | 2562 fps | 97.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,717 psi | 73% | 2723 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 46,992 psi | 74% | 2707 fps | 100% |
| Alliant Power Pro 2000-MR | 54.2 gr | 80% | 40,567 psi | 64% | 2746 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,304 psi | 58% | 2579 fps | 98.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 54,244 psi | 85% | 2772 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,248 psi | 63% | 2648 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 84% | 32,895 psi | 52% | 2533 fps | 95% |
| Alliant Reloder-17 | 53.4 gr | 80% | 32,285 psi | 51% | 2546 fps | 96.7% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,081 psi | 47% | 2484 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 94% | 35,070 psi | 55% | 2674 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,743 psi | 69% | 2717 fps | 98.3% |
| Bofors RP3 | <<locked>> | 80% | 36,825 psi | 58% | 2582 fps | 98.6% |
| Bofors RP7 | <<locked>> | 90% | 46,137 psi | 72% | 2720 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,414 psi | 76% | 2713 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,513 psi | 71% | 2746 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,604 psi | 79% | 2897 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 80% | 49,705 psi | 78% | 2762 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 37,855 psi | 59% | 2589 fps | 96.2% |
| Hodgdon H414 | <<locked>> | 88% | 44,048 psi | 69% | 2769 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 94% | 48,530 psi | 76% | 2802 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 45,005 psi | 71% | 2726 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 30,124 psi | 47% | 2431 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,609 psi | 61% | 2644 fps | 99% |
| Hodgdon Superformance | 64.9 gr | 92% | 46,122 psi | 72% | 2831 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,165 psi | 41% | 1572 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,929 psi | 63% | 2612 fps | 98.8% |
| IMR 3031 | <<locked>> | 80% | 41,002 psi | 64% | 2654 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,144 psi | 58% | 2539 fps | 97.4% |
| IMR 4166 Enduron | <<locked>> | 86% | 44,483 psi | 70% | 2661 fps | 95.6% |
| IMR 4350 | <<locked>> | 94% | 46,470 psi | 73% | 2749 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 88% | 45,107 psi | 71% | 2703 fps | 95.7% |
| IMR 4831 | <<locked>> | 90% | 34,519 psi | 54% | 2552 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 41,249 psi | 65% | 2680 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 46,717 psi | 73% | 2723 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 52,852 psi | 83% | 2808 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 43,526 psi | 68% | 2690 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,614 psi | 70% | 2654 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 39,537 psi | 62% | 2598 fps | 99.3% |
| Lovex S065 | <<locked>> | 86% | 39,131 psi | 61% | 2592 fps | 95.6% |
| Lovex S070 | <<locked>> | 90% | 42,134 psi | 66% | 2671 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 43,511 psi | 68% | 2667 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 43,801 psi | 69% | 2671 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,624 psi | 62% | 2638 fps | 98.4% |
| Norma 204 | <<locked>> | 98% | 53,330 psi | 84% | 2904 fps | 95.8% |
| Norma URP | <<locked>> | 86% | 35,157 psi | 55% | 2579 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 39,233 psi | 61% | 2651 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 39,276 psi | 62% | 2677 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 46,717 psi | 73% | 2730 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,238 psi | 72% | 2749 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,386 psi | 79% | 2772 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,600 psi | 42% | 1611 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,446 psi | 82% | 2805 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 40,886 psi | 64% | 2628 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,380 psi | 66% | 2749 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,403 psi | 54% | 2618 fps | 99.4% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 34,577 psi | 54% | 2592 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 37,275 psi | 58% | 2661 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 47,195 psi | 74% | 2703 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,437 psi | 65% | 2618 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 34,606 psi | 54% | 2526 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 90% | 46,137 psi | 72% | 2720 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 39,131 psi | 61% | 2592 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,526 psi | 68% | 2690 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,537 psi | 62% | 2598 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 90% | 42,134 psi | 66% | 2671 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,752 psi | 56% | 2579 fps | 97.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,846 psi | 70% | 2703 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,989 psi | 67% | 2680 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,918 psi | 70% | 2618 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,318 psi | 58% | 2484 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 44,179 psi | 69% | 2648 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 50,415 psi | 79% | 2802 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,541 psi | 70% | 2621 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,512 psi | 70% | 2697 fps | 99.2% |
| Somchem S355 | <<locked>> | 80% | 35,636 psi | 56% | 2536 fps | 97.9% |
| Somchem S365 | <<locked>> | 80% | 25,628 psi | 40% | 2352 fps | 95% |
| Unknown powder | <<locked>> | 84% | 35,839 psi | 56% | 2582 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 49,922 psi | 78% | 2667 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,482 psi | 67% | 2569 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,857 psi | 64% | 2598 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,075 psi | 64% | 2602 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 30,284 psi | 47% | 2385 fps | 97.5% |
| Vihtavuori N160 | <<locked>> | 82% | 33,475 psi | 52% | 2500 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 49,327 psi | 77% | 2779 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 40,567 psi | 64% | 2618 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 33,953 psi | 53% | 2543 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 92% | 32,474 psi | 51% | 2566 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,950 psi | 47% | 2392 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 50,169 psi | 79% | 2825 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 44,048 psi | 69% | 2769 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,226 psi | 47% | 2566 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,417 psi | 84% | 2871 fps | 100% |
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 .300 WSM loaded with the .308 | 166gr | Peregrine Glider (Glider Tactical). Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,058 fps; across all powders the maximum-charge window runs from 1,759 fps to 3,058 fps. Accurate 4350 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 54–90 %, leaving at least 10 % headroom. The 166.0 gr projectile in 0.308" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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. Alliant Power Pro 2000-MR, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .300 WSM with the .308 | 166gr | Peregrine Glider (Glider Tactical) 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.