Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:150 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:.300 WSM load data
Case Length (l3):2.09"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:81.3 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:11.0
Load data in caliber .300 WSM with .308 | 150gr | Peregrine Glider (Glider GRM) bullet and 103 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, ReloadSwiss RS 60 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.
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 2015 | <<locked>> | 86% | 55,216 psi | 87% | 2927 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 57,174 psi | 90% | 3002 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 56,695 psi | 89% | 2992 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 57,682 psi | 90% | 3054 fps | 100% |
| Accurate 2700 | <<locked>> | 94% | 54,621 psi | 86% | 2940 fps | 96% |
| Accurate 4064 | <<locked>> | 92% | 54,520 psi | 85% | 3002 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 54,273 psi | 85% | 3077 fps | 99.1% |
| Accurate LT-30 | <<locked>> | 82% | 57,740 psi | 90% | 2920 fps | 100% |
| ADI AR 2206H | <<locked>> | 88% | 55,361 psi | 87% | 3038 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 94% | 56,376 psi | 88% | 3031 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 86% | 54,433 psi | 85% | 2986 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 55,027 psi | 86% | 2966 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 55,172 psi | 86% | 3087 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 54,998 psi | 86% | 3156 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 56,217 psi | 88% | 3058 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 55,767 psi | 87% | 2943 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 56,927 psi | 89% | 3081 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 52,315 psi | 82% | 3081 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 98% | 57,232 psi | 90% | 3182 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,231 psi | 58% | 2789 fps | 97.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,553 psi | 65% | 2946 fps | 96.2% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 55,405 psi | 87% | 3051 fps | 99.3% |
| Bofors RP3 | <<locked>> | 94% | 57,058 psi | 89% | 3074 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 57,058 psi | 89% | 3035 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 86% | 56,376 psi | 88% | 2972 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 56,333 psi | 88% | 3061 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 54,607 psi | 86% | 3107 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 84% | 54,302 psi | 85% | 2976 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 54,418 psi | 85% | 3028 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 96% | 55,521 psi | 87% | 3100 fps | 97.2% |
| Hodgdon H4895 | <<locked>> | 88% | 55,912 psi | 88% | 3048 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,501 psi | 76% | 2953 fps | 99.5% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 54,273 psi | 85% | 3068 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 54,752 psi | 86% | 3107 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,273 psi | 55% | 1857 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 55,317 psi | 87% | 3025 fps | 99.9% |
| IMR 3031 | <<locked>> | 92% | 57,493 psi | 90% | 3058 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 54,926 psi | 86% | 3002 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 94% | 54,578 psi | 86% | 2969 fps | 96.9% |
| IMR 4198 | <<locked>> | 82% | 55,782 psi | 87% | 2900 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 53,940 psi | 85% | 3005 fps | 96.2% |
| IMR 4451 Enduron | <<locked>> | 96% | 54,926 psi | 86% | 3009 fps | 96.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 45,643 psi | 72% | 2910 fps | 97.9% |
| IMR 4895 | <<locked>> | 90% | 54,752 psi | 86% | 3058 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 86% | 54,433 psi | 85% | 2986 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 54,592 psi | 86% | 2972 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 55,143 psi | 86% | 3015 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 55,201 psi | 87% | 2966 fps | 99.8% |
| Lovex S062 | <<locked>> | 92% | 55,608 psi | 87% | 3015 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 54,737 psi | 86% | 3005 fps | 98.2% |
| Lovex S070ᴾ | <<locked>> | 100% | 55,666 psi | 87% | 3041 fps | 97.4% |
| Norma 201 | <<locked>> | 90% | 57,479 psi | 90% | 3031 fps | 100% |
| Norma 202 | <<locked>> | 88% | 54,665 psi | 86% | 2986 fps | 100% |
| Norma 203B | <<locked>> | 92% | 56,086 psi | 88% | 3068 fps | 99.8% |
| Norma URPᴾ | <<locked>> | 100% | 53,417 psi | 84% | 3064 fps | 99% |
| Ramshot Big Game | <<locked>> | 92% | 56,855 psi | 89% | 3094 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 52,301 psi | 82% | 3054 fps | 97.5% |
| Ramshot TAC | <<locked>> | 86% | 54,897 psi | 86% | 3002 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 86% | 54,244 psi | 85% | 3022 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 84% | 55,506 psi | 87% | 2989 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,621 psi | 56% | 1900 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 57,566 psi | 90% | 3022 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 54,810 psi | 86% | 3009 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 57,392 psi | 90% | 3150 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 57,130 psi | 90% | 3189 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 53,954 psi | 85% | 3100 fps | 99% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 53,969 psi | 85% | 3127 fps | 98.7% |
| Rottweil R 901 | <<locked>> | 86% | 54,998 psi | 86% | 2966 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 54,520 psi | 85% | 2976 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 56,594 psi | 89% | 3061 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 57,058 psi | 89% | 3035 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 98% | 54,737 psi | 86% | 3005 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 88% | 55,143 psi | 86% | 3015 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,608 psi | 87% | 3015 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 54,636 psi | 86% | 3028 fps | 97.2% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 57,217 psi | 90% | 2992 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 54,969 psi | 86% | 3071 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 55,854 psi | 88% | 2959 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 57,029 psi | 89% | 3038 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 57,348 psi | 90% | 3061 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 55,767 psi | 87% | 2923 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 55,927 psi | 88% | 2917 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 55,259 psi | 87% | 2956 fps | 97% |
| Somchem S321 | <<locked>> | 84% | 55,854 psi | 88% | 3025 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,129 psi | 86% | 2920 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 56,565 psi | 89% | 3028 fps | 99.8% |
| Somchem S355 | <<locked>> | 96% | 57,145 psi | 90% | 3061 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,877 psi | 75% | 3012 fps | 100% |
| Unknown powder | <<locked>> | 98% | 54,578 psi | 86% | 3074 fps | 98.7% |
| Vihtavuori N130 | <<locked>> | 84% | 54,476 psi | 85% | 2874 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 55,332 psi | 87% | 2904 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 56,623 psi | 89% | 2986 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 57,711 psi | 90% | 2999 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 54,694 psi | 86% | 2986 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 55,245 psi | 87% | 3045 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 86% | 57,740 psi | 90% | 3048 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 57,725 psi | 90% | 3031 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 55,463 psi | 87% | 3097 fps | 99.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,248 psi | 63% | 2867 fps | 97.2% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 56,797 psi | 89% | 3045 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 55,521 psi | 87% | 3048 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,521 psi | 87% | 3100 fps | 97.2% |
| Winchester StaBALL Match | <<locked>> | 82% | 54,940 psi | 86% | 3035 fps | 99.9% |
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 2015 | <<locked>> | 80% | 45,716 psi | 72% | 2782 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,893 psi | 78% | 2894 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,840 psi | 59% | 2684 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,482 psi | 68% | 2828 fps | 99.9% |
| Accurate 2700 | <<locked>> | 92% | 50,952 psi | 80% | 2881 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 37,130 psi | 58% | 2690 fps | 99.8% |
| Accurate 4350 | <<locked>> | 90% | 38,145 psi | 60% | 2772 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 54,143 psi | 85% | 2871 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 42,960 psi | 67% | 2812 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 80% | 36,550 psi | 57% | 2651 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,976 psi | 70% | 2825 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 44,962 psi | 70% | 2818 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 51,576 psi | 81% | 3028 fps | 99.7% |
| Alliant Power Pro 2000-MR | 55.3 gr | 80% | 38,972 psi | 61% | 2828 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,042 psi | 56% | 2674 fps | 97.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 52,518 psi | 82% | 2894 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,696 psi | 61% | 2736 fps | 96.7% |
| Alliant Reloder-16 | <<locked>> | 90% | 38,348 psi | 60% | 2789 fps | 95.9% |
| Alliant Reloder-17 | 55.8 gr | 82% | 33,214 psi | 52% | 2684 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 96% | 32,967 psi | 52% | 2674 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 98% | 38,682 psi | 61% | 2874 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,235 psi | 66% | 2812 fps | 97.1% |
| Bofors RP3 | <<locked>> | 80% | 35,563 psi | 56% | 2674 fps | 97.4% |
| Bofors RP7 | <<locked>> | 94% | 50,488 psi | 79% | 2923 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,775 psi | 73% | 2815 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,728 psi | 67% | 2828 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 47,282 psi | 74% | 2979 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 80% | 47,790 psi | 75% | 2871 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 39,059 psi | 61% | 2733 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 92% | 48,428 psi | 76% | 2979 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 43,308 psi | 68% | 2822 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 33,040 psi | 52% | 2621 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,334 psi | 60% | 2772 fps | 98.1% |
| Hodgdon Superformance | <<locked>> | 96% | 50,981 psi | 80% | 3041 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,179 psi | 41% | 1660 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,710 psi | 59% | 2694 fps | 97.5% |
| IMR 3031 | <<locked>> | 80% | 39,131 psi | 61% | 2753 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,694 psi | 56% | 2625 fps | 95.8% |
| IMR 4166 Enduron | <<locked>> | 90% | 48,370 psi | 76% | 2861 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 52,721 psi | 83% | 2858 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 50,589 psi | 79% | 2946 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 92% | 48,414 psi | 76% | 2890 fps | 95.4% |
| IMR 4831 | <<locked>> | 94% | 37,579 psi | 59% | 2743 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 39,639 psi | 62% | 2769 fps | 97.6% |
| IMR 8208 XBR | <<locked>> | 80% | 44,976 psi | 70% | 2825 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 80% | 50,937 psi | 80% | 2913 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 41,945 psi | 66% | 2792 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 43,178 psi | 68% | 2749 fps | 98.3% |
| Lovex S062 | <<locked>> | 80% | 38,203 psi | 60% | 2694 fps | 98.3% |
| Lovex S065 | <<locked>> | 90% | 42,699 psi | 67% | 2785 fps | 95.5% |
| Lovex S070 | <<locked>> | 94% | 45,963 psi | 72% | 2867 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 42,105 psi | 66% | 2766 fps | 99% |
| Norma 202 | <<locked>> | 80% | 42,380 psi | 66% | 2776 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,087 psi | 60% | 2726 fps | 97.1% |
| Norma URP | <<locked>> | 90% | 38,508 psi | 60% | 2776 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 37,594 psi | 59% | 2733 fps | 96.7% |
| Ramshot Hunter | <<locked>> | 94% | 42,989 psi | 67% | 2874 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 45,049 psi | 71% | 2825 fps | 96.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,483 psi | 70% | 2848 fps | 98.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,660 psi | 76% | 2874 fps | 99.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,397 psi | 41% | 1696 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,415 psi | 79% | 2913 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 45,150 psi | 71% | 2835 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,437 psi | 63% | 2841 fps | 97.2% |
| ReloadSwiss RS 60 | 54.5 gr | 80% | 33,170 psi | 52% | 2697 fps | 98.2% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 37,985 psi | 60% | 2792 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 41,075 psi | 64% | 2864 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 45,905 psi | 72% | 2815 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,132 psi | 63% | 2717 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 80% | 33,475 psi | 52% | 2612 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 94% | 50,488 psi | 79% | 2923 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 42,699 psi | 67% | 2785 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,945 psi | 66% | 2792 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 38,203 psi | 60% | 2694 fps | 98.3% |
| Shooters World SW4350 | <<locked>> | 96% | 47,950 psi | 75% | 2913 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 53,432 psi | 84% | 2936 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,403 psi | 54% | 2661 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 52,475 psi | 82% | 2910 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,163 psi | 68% | 2792 fps | 96.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,495 psi | 65% | 2776 fps | 97.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,526 psi | 68% | 2723 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,114 psi | 57% | 2582 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 48,385 psi | 76% | 2841 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 48,747 psi | 76% | 2907 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 43,149 psi | 68% | 2726 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,989 psi | 67% | 2795 fps | 98.2% |
| Somchem S355 | <<locked>> | 80% | 34,360 psi | 54% | 2621 fps | 96.4% |
| Somchem S365 | <<locked>> | 84% | 28,224 psi | 44% | 2543 fps | 95.1% |
| Unknown powder | <<locked>> | 88% | 39,276 psi | 62% | 2782 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 48,167 psi | 75% | 2779 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,944 psi | 64% | 2671 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,348 psi | 60% | 2690 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,537 psi | 62% | 2700 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 29,283 psi | 46% | 2470 fps | 96% |
| Vihtavuori N160 | <<locked>> | 86% | 36,941 psi | 58% | 2700 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 47,413 psi | 74% | 2881 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 39,247 psi | 62% | 2717 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 86% | 37,217 psi | 58% | 2740 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 96% | 35,346 psi | 55% | 2753 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 31,111 psi | 49% | 2526 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 48,269 psi | 76% | 2930 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 48,428 psi | 76% | 2979 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 51,271 psi | 80% | 2972 fps | 99.7% |
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 103 powders for .300 WSM loaded with the .308 | 150gr | Peregrine Glider (Glider GRM). ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,189 fps; across all powders the maximum-charge window runs from 1,857 fps to 3,189 fps. Accurate 4350 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:11.0 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, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .300 WSM with the .308 | 150gr | Peregrine Glider (Glider GRM) 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.