Load Specifications
Bullet:.308 | 145gr | SUS-TAC HPT
Bullet Manufacturer:SUS-TAC
Bullet Weight:145 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:1:12.0
Load data in caliber .300 WSM with .308 | 145gr | SUS-TAC HPT bullet and 102 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% | 55,941 psi | 88% | 2982 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 54,273 psi | 85% | 3005 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 54,302 psi | 85% | 3002 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 54,810 psi | 86% | 3061 fps | 100% |
| Accurate 2700 | <<locked>> | 94% | 55,027 psi | 86% | 2989 fps | 95.8% |
| Accurate 4064 | <<locked>> | 92% | 54,244 psi | 85% | 3048 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,925 psi | 85% | 3120 fps | 98.9% |
| ADI AR 2206H | <<locked>> | 88% | 55,100 psi | 86% | 3081 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 94% | 55,999 psi | 88% | 3077 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 88% | 57,696 psi | 90% | 3087 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 54,549 psi | 85% | 3012 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 55,724 psi | 87% | 3146 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 54,708 psi | 86% | 3199 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 55,782 psi | 87% | 3100 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 55,564 psi | 87% | 2989 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 56,521 psi | 89% | 3123 fps | 99.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 51,996 psi | 81% | 3123 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 98% | 56,768 psi | 89% | 3225 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,101 psi | 58% | 2825 fps | 96.9% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 57,667 psi | 90% | 2966 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 54,911 psi | 86% | 3091 fps | 99.1% |
| Bofors RP3 | <<locked>> | 94% | 56,565 psi | 89% | 3117 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 56,884 psi | 89% | 3077 fps | 96.4% |
| Hodgdon Benchmark | <<locked>> | 86% | 55,970 psi | 88% | 3018 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 57,217 psi | 90% | 3120 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 55,376 psi | 87% | 3163 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 86% | 57,537 psi | 90% | 3071 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 54,259 psi | 85% | 3074 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 96% | 55,071 psi | 86% | 3140 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 88% | 55,637 psi | 87% | 3094 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,269 psi | 76% | 2995 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 55,013 psi | 86% | 3127 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 54,462 psi | 85% | 3146 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,157 psi | 55% | 1893 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 55,825 psi | 87% | 3077 fps | 99.9% |
| IMR 3031 | <<locked>> | 92% | 57,232 psi | 90% | 3107 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 54,636 psi | 86% | 3045 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 96% | 57,725 psi | 90% | 3068 fps | 97.2% |
| IMR 4198 | <<locked>> | 82% | 55,593 psi | 87% | 2949 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 53,330 psi | 84% | 3038 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 96% | 55,303 psi | 87% | 3054 fps | 96.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 45,252 psi | 71% | 2949 fps | 97.5% |
| IMR 4895 | <<locked>> | 90% | 54,418 psi | 85% | 3100 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 88% | 57,696 psi | 90% | 3087 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 54,360 psi | 85% | 3018 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 54,810 psi | 86% | 3061 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 54,737 psi | 86% | 3005 fps | 99.6% |
| Lovex S062 | <<locked>> | 92% | 55,347 psi | 87% | 3061 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 54,578 psi | 86% | 3048 fps | 97.9% |
| Lovex S070ᴾ | <<locked>> | 100% | 55,361 psi | 87% | 3081 fps | 97% |
| Norma 201 | <<locked>> | 90% | 57,217 psi | 90% | 3077 fps | 100% |
| Norma 202 | <<locked>> | 90% | 57,696 psi | 90% | 3081 fps | 100% |
| Norma 203B | <<locked>> | 92% | 55,680 psi | 87% | 3110 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 53,055 psi | 83% | 3107 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 92% | 56,463 psi | 88% | 3136 fps | 99.7% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 52,156 psi | 82% | 3097 fps | 97.2% |
| Ramshot TAC | <<locked>> | 86% | 54,563 psi | 86% | 3045 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 86% | 54,128 psi | 85% | 3068 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 84% | 55,216 psi | 87% | 3035 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,505 psi | 56% | 1936 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 57,101 psi | 89% | 3068 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 54,636 psi | 86% | 3051 fps | 97.3% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 56,927 psi | 89% | 3196 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 56,782 psi | 89% | 3232 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 53,650 psi | 84% | 3143 fps | 98.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 53,766 psi | 84% | 3166 fps | 98.4% |
| Rottweil R 901 | <<locked>> | 86% | 54,708 psi | 86% | 3012 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 54,346 psi | 85% | 3025 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 56,405 psi | 88% | 3107 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 98% | 56,884 psi | 89% | 3077 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 98% | 54,578 psi | 86% | 3048 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 88% | 54,810 psi | 86% | 3061 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,347 psi | 87% | 3061 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 55,361 psi | 87% | 3081 fps | 97% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 56,985 psi | 89% | 3038 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 54,650 psi | 86% | 3117 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 56,405 psi | 88% | 3015 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 56,565 psi | 89% | 3077 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 56,927 psi | 89% | 3104 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 55,434 psi | 87% | 2966 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 55,666 psi | 87% | 2963 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 54,998 psi | 86% | 2995 fps | 96.6% |
| Somchem S321 | <<locked>> | 84% | 55,535 psi | 87% | 3068 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 54,694 psi | 86% | 2963 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 56,057 psi | 88% | 3071 fps | 99.7% |
| Somchem S355 | <<locked>> | 96% | 56,695 psi | 89% | 3104 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,326 psi | 74% | 3048 fps | 99.9% |
| Unknown powder | <<locked>> | 98% | 54,259 psi | 85% | 3117 fps | 98.4% |
| Vihtavuori N130 | <<locked>> | 86% | 57,493 psi | 90% | 2966 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 54,940 psi | 86% | 2949 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 57,145 psi | 90% | 3038 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 57,348 psi | 90% | 3045 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 54,491 psi | 85% | 3031 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 54,853 psi | 86% | 3087 fps | 98.9% |
| Vihtavuori N530 | <<locked>> | 86% | 57,522 psi | 90% | 3097 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 57,305 psi | 90% | 3077 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 55,143 psi | 86% | 3140 fps | 98.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,987 psi | 63% | 2907 fps | 96.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 56,521 psi | 89% | 3087 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 55,158 psi | 86% | 3094 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,071 psi | 86% | 3140 fps | 96.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 54,781 psi | 86% | 3081 fps | 99.8% |
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% | 46,383 psi | 73% | 2835 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 50,981 psi | 80% | 2953 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,160 psi | 61% | 2746 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,454 psi | 70% | 2887 fps | 99.9% |
| Accurate 2700 | <<locked>> | 92% | 51,706 psi | 81% | 2933 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 36,999 psi | 58% | 2733 fps | 99.6% |
| Accurate 4350 | <<locked>> | 90% | 37,927 psi | 59% | 2812 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 42,699 psi | 67% | 2851 fps | 98% |
| ADI AR 2208 | <<locked>> | 80% | 36,405 psi | 57% | 2690 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,744 psi | 70% | 2864 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 80% | 44,672 psi | 70% | 2864 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 52,199 psi | 82% | 3087 fps | 99.7% |
| Alliant Power Pro 2000-MR | 56.2 gr | 80% | 38,827 psi | 61% | 2867 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,897 psi | 56% | 2713 fps | 97.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 52,069 psi | 82% | 2940 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,493 psi | 60% | 2776 fps | 96.3% |
| Alliant Reloder-16 | <<locked>> | 90% | 38,159 psi | 60% | 2825 fps | 95.4% |
| Alliant Reloder-17 | 56.7 gr | 82% | 33,127 psi | 52% | 2720 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 98% | 34,838 psi | 55% | 2766 fps | 95.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 53,896 psi | 84% | 2913 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,843 psi | 66% | 2848 fps | 96.7% |
| Bofors RP3 | <<locked>> | 80% | 35,360 psi | 55% | 2710 fps | 97% |
| Bofors RP7 | <<locked>> | 96% | 53,388 psi | 84% | 3022 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,572 psi | 73% | 2861 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,584 psi | 68% | 2884 fps | 99.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 47,935 psi | 75% | 3035 fps | 98.6% |
| Hodgdon H322 | <<locked>> | 80% | 47,572 psi | 75% | 2917 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 38,798 psi | 61% | 2772 fps | 95% |
| Hodgdon H414 | <<locked>> | 92% | 47,921 psi | 75% | 3012 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 43,105 psi | 68% | 2864 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 32,808 psi | 51% | 2654 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,840 psi | 58% | 2772 fps | 97.5% |
| Hodgdon Superformance | <<locked>> | 96% | 50,531 psi | 79% | 3074 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,223 psi | 41% | 1693 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,377 psi | 60% | 2746 fps | 97.4% |
| IMR 3031 | <<locked>> | 80% | 38,972 psi | 61% | 2799 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,621 psi | 56% | 2664 fps | 95.4% |
| IMR 4166 Enduron | <<locked>> | 90% | 48,240 psi | 76% | 2900 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 52,373 psi | 82% | 2904 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 50,111 psi | 79% | 2982 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 92% | 48,950 psi | 77% | 2943 fps | 95.2% |
| IMR 4831 | <<locked>> | 94% | 37,362 psi | 59% | 2779 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 39,436 psi | 62% | 2812 fps | 97.3% |
| IMR 8208 XBR | <<locked>> | 80% | 44,744 psi | 70% | 2864 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 80% | 50,807 psi | 80% | 2959 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 41,626 psi | 65% | 2831 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 43,004 psi | 67% | 2792 fps | 98.1% |
| Lovex S062 | <<locked>> | 80% | 38,014 psi | 60% | 2733 fps | 98.1% |
| Lovex S065 | <<locked>> | 90% | 42,554 psi | 67% | 2825 fps | 95.1% |
| Lovex S070 | <<locked>> | 96% | 48,863 psi | 77% | 2969 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 41,974 psi | 66% | 2808 fps | 98.8% |
| Norma 202 | <<locked>> | 80% | 42,206 psi | 66% | 2818 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 37,884 psi | 59% | 2766 fps | 96.8% |
| Norma URP | <<locked>> | 90% | 38,261 psi | 60% | 2815 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 37,492 psi | 59% | 2776 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 96% | 45,527 psi | 71% | 2972 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 44,889 psi | 70% | 2864 fps | 96% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,092 psi | 69% | 2887 fps | 98.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,486 psi | 76% | 2917 fps | 98.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,426 psi | 41% | 1732 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,357 psi | 79% | 2963 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 44,918 psi | 70% | 2874 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,074 psi | 63% | 2881 fps | 96.8% |
| ReloadSwiss RS 60 | 55.3 gr | 80% | 32,924 psi | 52% | 2730 fps | 97.9% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 40,408 psi | 63% | 2887 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 43,743 psi | 69% | 2966 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 45,847 psi | 72% | 2861 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,798 psi | 62% | 2753 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 80% | 33,330 psi | 52% | 2651 fps | 96% |
| Rottweil R 907 | <<locked>> | 96% | 53,388 psi | 84% | 3022 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 90% | 42,554 psi | 67% | 2825 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,626 psi | 65% | 2831 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 38,014 psi | 60% | 2733 fps | 98.1% |
| Shooters World SW4350 | <<locked>> | 96% | 48,863 psi | 77% | 2969 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 53,229 psi | 83% | 2979 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,200 psi | 54% | 2697 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 53,113 psi | 83% | 2966 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,076 psi | 68% | 2835 fps | 96.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,220 psi | 65% | 2815 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,395 psi | 68% | 2769 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,998 psi | 56% | 2621 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 48,269 psi | 76% | 2884 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 48,385 psi | 76% | 2949 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 42,960 psi | 67% | 2769 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,583 psi | 67% | 2831 fps | 97.9% |
| Somchem S355 | <<locked>> | 80% | 34,229 psi | 54% | 2661 fps | 96% |
| Somchem S365 | <<locked>> | 86% | 30,066 psi | 47% | 2635 fps | 95.7% |
| Unknown powder | <<locked>> | 90% | 41,713 psi | 65% | 2877 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 48,066 psi | 75% | 2828 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,886 psi | 64% | 2717 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,204 psi | 61% | 2746 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,334 psi | 62% | 2740 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 29,080 psi | 46% | 2503 fps | 95.6% |
| Vihtavuori N160 | <<locked>> | 88% | 39,218 psi | 61% | 2795 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 47,181 psi | 74% | 2923 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 39,030 psi | 61% | 2756 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 88% | 39,711 psi | 62% | 2841 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 96% | 35,027 psi | 55% | 2785 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 33,112 psi | 52% | 2621 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 47,790 psi | 75% | 2972 fps | 99.9% |
| Winchester 760 | <<locked>> | 92% | 47,921 psi | 75% | 3012 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,952 psi | 80% | 3015 fps | 99.6% |
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 115 powders for .300 WSM loaded with the .308 | 145gr | SUS-TAC HPT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,232 fps; across all powders the maximum-charge window runs from 1,893 fps to 3,232 fps. Accurate 3100 gives the best case fill at 100 %, and 115 of the 115 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 145.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, ADI AR 2209 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 | 145gr | SUS-TAC HPT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, ADI AR 2209, Alliant Reloder-19 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.