Load Specifications
Load data in caliber .300 WSM with .308 | 136gr | Peregrine VLR-4 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 60, Alliant Power Pro 2000-MR and ReloadSwiss RS 52.
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>> | 88% | 56,811 psi | 89% | 3100 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 55,303 psi | 87% | 3123 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 54,447 psi | 85% | 3110 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 55,361 psi | 87% | 3169 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 54,389 psi | 85% | 3156 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,560 psi | 79% | 3159 fps | 98% |
| Accurate LT-30 | <<locked>> | 82% | 56,057 psi | 88% | 3045 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 56,492 psi | 89% | 3074 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 56,086 psi | 88% | 3199 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 96% | 57,087 psi | 89% | 3192 fps | 99.3% |
| ADI AR 2219 | <<locked>> | 82% | 57,305 psi | 90% | 3176 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 55,085 psi | 86% | 3150 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 88% | 55,419 psi | 87% | 3133 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 56,681 psi | 89% | 3268 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 55,999 psi | 88% | 3320 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 56,782 psi | 89% | 3215 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 84% | 56,260 psi | 88% | 3107 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 57,566 psi | 90% | 3238 fps | 99.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,617 psi | 78% | 3169 fps | 98.1% |
| Alliant Reloder-17 | <<locked>> | 98% | 54,070 psi | 85% | 3278 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 55,419 psi | 87% | 3035 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 56,144 psi | 88% | 3212 fps | 98.9% |
| Bofors RP3 | <<locked>> | 96% | 57,276 psi | 90% | 3232 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 88% | 57,072 psi | 89% | 3136 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 54,360 psi | 85% | 3176 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 56,405 psi | 88% | 3281 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 86% | 55,071 psi | 86% | 3143 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 56,565 psi | 89% | 3169 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 54,839 psi | 86% | 3179 fps | 98.2% |
| Hodgdon H414 | <<locked>> | 98% | 56,246 psi | 88% | 3255 fps | 96.5% |
| Hodgdon H4198 | <<locked>> | 82% | 57,696 psi | 90% | 3094 fps | 100% |
| Hodgdon H4895 | <<locked>> | 90% | 56,608 psi | 89% | 3212 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,498 psi | 71% | 3035 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 55,637 psi | 87% | 3238 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,780 psi | 55% | 1959 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 56,710 psi | 89% | 3192 fps | 99.8% |
| IMR 3031 | <<locked>> | 94% | 57,711 psi | 90% | 3222 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 55,419 psi | 87% | 3156 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 96% | 55,419 psi | 87% | 3123 fps | 96.2% |
| IMR 4198 | <<locked>> | 84% | 56,608 psi | 89% | 3071 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 56,478 psi | 89% | 3169 fps | 96.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 42,627 psi | 67% | 2989 fps | 96.3% |
| IMR 4895 | <<locked>> | 92% | 55,201 psi | 87% | 3215 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 88% | 55,085 psi | 86% | 3150 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 84% | 55,317 psi | 87% | 3133 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 55,361 psi | 87% | 3169 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 55,825 psi | 87% | 3123 fps | 99.5% |
| Lovex S062 | <<locked>> | 94% | 55,854 psi | 88% | 3169 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 55,114 psi | 86% | 3153 fps | 97.5% |
| Lovex S070ᴾ | <<locked>> | 100% | 52,605 psi | 82% | 3127 fps | 95.9% |
| Norma 201 | <<locked>> | 90% | 54,592 psi | 86% | 3140 fps | 99.9% |
| Norma 202 | <<locked>> | 90% | 55,158 psi | 86% | 3146 fps | 100% |
| Norma 203B | <<locked>> | 94% | 56,652 psi | 89% | 3225 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 50,270 psi | 79% | 3153 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 94% | 57,566 psi | 90% | 3251 fps | 99.6% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,356 psi | 77% | 3136 fps | 95.9% |
| Ramshot TAC | <<locked>> | 88% | 55,927 psi | 88% | 3163 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 88% | 55,187 psi | 86% | 3186 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 86% | 56,463 psi | 88% | 3150 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,012 psi | 55% | 2001 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 54,621 psi | 86% | 3133 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 55,564 psi | 87% | 3159 fps | 96.9% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 54,215 psi | 85% | 3251 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 53,954 psi | 85% | 3291 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,386 psi | 79% | 3182 fps | 97.8% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 51,169 psi | 80% | 3209 fps | 97.4% |
| Rottweil R 901 | <<locked>> | 88% | 55,303 psi | 87% | 3127 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 54,911 psi | 86% | 3133 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 98% | 56,840 psi | 89% | 3215 fps | 99.8% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 55,114 psi | 86% | 3153 fps | 97.5% |
| Shooters World Match Rifle | <<locked>> | 90% | 55,361 psi | 87% | 3169 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 55,854 psi | 88% | 3169 fps | 99.9% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 52,605 psi | 82% | 3127 fps | 95.9% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 54,462 psi | 85% | 3097 fps | 99.7% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 57,667 psi | 90% | 3186 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 55,463 psi | 87% | 3225 fps | 99.5% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 57,624 psi | 90% | 3140 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 53,737 psi | 84% | 3130 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 54,650 psi | 86% | 3166 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 56,594 psi | 89% | 3087 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 56,594 psi | 89% | 3077 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 56,188 psi | 88% | 3107 fps | 96.3% |
| Somchem S321 | <<locked>> | 86% | 56,623 psi | 89% | 3186 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 55,738 psi | 87% | 3081 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 57,377 psi | 90% | 3189 fps | 99.6% |
| Somchem S355 | <<locked>> | 98% | 57,334 psi | 90% | 3215 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,585 psi | 70% | 3091 fps | 99.5% |
| Unknown powderᴾ | <<locked>> | 100% | 55,056 psi | 86% | 3225 fps | 98.1% |
| Vihtavuori N120 | <<locked>> | 82% | 57,116 psi | 90% | 2999 fps | 100% |
| Vihtavuori N130 | <<locked>> | 86% | 55,013 psi | 86% | 3038 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 55,854 psi | 88% | 3064 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 54,476 psi | 85% | 3107 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 54,810 psi | 86% | 3110 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 51,721 psi | 81% | 3087 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 55,825 psi | 87% | 3199 fps | 98.6% |
| Vihtavuori N530 | <<locked>> | 86% | 54,882 psi | 86% | 3156 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 92% | 54,665 psi | 86% | 3140 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 55,985 psi | 88% | 3251 fps | 98.7% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 53,983 psi | 85% | 3140 fps | 99.7% |
| Winchester 748 | <<locked>> | 86% | 56,231 psi | 88% | 3212 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 56,246 psi | 88% | 3255 fps | 96.5% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,999 psi | 88% | 3199 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% | 43,932 psi | 69% | 2894 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 48,008 psi | 75% | 3005 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,143 psi | 57% | 2782 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 41,800 psi | 66% | 2930 fps | 99.5% |
| Accurate 4064 | <<locked>> | 80% | 34,185 psi | 54% | 2762 fps | 98.9% |
| Accurate 4350 | <<locked>> | 94% | 40,727 psi | 64% | 2966 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 52,692 psi | 83% | 2995 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 53,084 psi | 83% | 3018 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 40,393 psi | 63% | 2894 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 84% | 39,204 psi | 61% | 2848 fps | 95.7% |
| ADI AR 2219 | <<locked>> | 80% | 53,461 psi | 84% | 3117 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,511 psi | 67% | 2917 fps | 98.5% |
| Alliant AR-Comp | <<locked>> | 80% | 42,105 psi | 66% | 2923 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 49,516 psi | 78% | 3140 fps | 99.2% |
| Alliant Power Pro 2000-MR | 58.8 gr | 82% | 39,320 psi | 62% | 2969 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,663 psi | 53% | 2746 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 49,705 psi | 78% | 3005 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 38,798 psi | 61% | 2874 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 94% | 40,901 psi | 64% | 2979 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 86% | 35,636 psi | 56% | 2874 fps | 95.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,808 psi | 81% | 2979 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,595 psi | 62% | 2887 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 32,837 psi | 51% | 2736 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,483 psi | 70% | 2913 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,147 psi | 64% | 2930 fps | 98.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,281 psi | 71% | 3077 fps | 97.6% |
| Hodgdon H322 | <<locked>> | 80% | 45,295 psi | 71% | 2976 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 52,881 psi | 83% | 3114 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 41,756 psi | 65% | 2930 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 96% | 52,214 psi | 82% | 3186 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 80% | 54,404 psi | 85% | 3045 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 40,741 psi | 64% | 2910 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 35,027 psi | 55% | 2799 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,577 psi | 54% | 2808 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,643 psi | 40% | 1749 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,376 psi | 57% | 2785 fps | 96.1% |
| IMR 3031 | <<locked>> | 80% | 36,492 psi | 57% | 2841 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 38,174 psi | 60% | 2818 fps | 95.7% |
| IMR 4166 Enduron | <<locked>> | 94% | 52,112 psi | 82% | 3064 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 50,285 psi | 79% | 2976 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 52,910 psi | 83% | 3107 fps | 95.5% |
| IMR 4831 | <<locked>> | 98% | 39,885 psi | 63% | 2927 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 37,072 psi | 58% | 2844 fps | 95.9% |
| IMR 8208 XBR | <<locked>> | 80% | 42,511 psi | 67% | 2917 fps | 98.5% |
| Lovex D073.5 | <<locked>> | 80% | 48,008 psi | 75% | 3012 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 39,102 psi | 61% | 2871 fps | 99.1% |
| Lovex S060 | <<locked>> | 80% | 41,031 psi | 64% | 2841 fps | 97.1% |
| Lovex S062 | <<locked>> | 80% | 35,781 psi | 56% | 2772 fps | 96.9% |
| Lovex S065 | <<locked>> | 94% | 45,701 psi | 72% | 2982 fps | 95.4% |
| Lovex S070 | <<locked>> | 98% | 49,153 psi | 77% | 3064 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 39,552 psi | 62% | 2848 fps | 97.9% |
| Norma 202 | <<locked>> | 80% | 39,871 psi | 62% | 2867 fps | 99.6% |
| Norma 203B | <<locked>> | 80% | 35,563 psi | 56% | 2795 fps | 95.3% |
| Norma URP | <<locked>> | 94% | 41,089 psi | 64% | 2969 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 82% | 37,782 psi | 59% | 2871 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 98% | 46,166 psi | 72% | 3074 fps | 95% |
| Ramshot TAC | <<locked>> | 82% | 45,600 psi | 71% | 2972 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,814 psi | 66% | 2930 fps | 97.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,282 psi | 73% | 2969 fps | 98.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,947 psi | 41% | 1791 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,921 psi | 75% | 3018 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 48,602 psi | 76% | 3038 fps | 95.4% |
| ReloadSwiss RS 52 | 55.6 gr | 80% | 37,724 psi | 59% | 2917 fps | 95.3% |
| ReloadSwiss RS 60 | 56.5 gr | 80% | 31,009 psi | 49% | 2753 fps | 96.2% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 40,698 psi | 64% | 2986 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 44,353 psi | 70% | 3064 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 43,279 psi | 68% | 2910 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 37,521 psi | 59% | 2795 fps | 97.4% |
| Rottweil R 903 | <<locked>> | 82% | 33,083 psi | 52% | 2736 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 45,701 psi | 72% | 2982 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,102 psi | 61% | 2871 fps | 99.1% |
| Shooters World Precision | <<locked>> | 80% | 35,781 psi | 56% | 2772 fps | 96.9% |
| Shooters World SW4350 | <<locked>> | 98% | 49,153 psi | 77% | 3064 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 50,879 psi | 80% | 3038 fps | 99.5% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 53,708 psi | 84% | 3123 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 36,927 psi | 58% | 2858 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 50,560 psi | 79% | 3031 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 43,540 psi | 68% | 2936 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,102 psi | 61% | 2861 fps | 96.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,118 psi | 64% | 2818 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,881 psi | 53% | 2664 fps | 99.2% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 52,359 psi | 82% | 3045 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 45,905 psi | 72% | 2999 fps | 99.3% |
| Somchem S335 | <<locked>> | 80% | 40,712 psi | 64% | 2822 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 40,306 psi | 63% | 2874 fps | 96.7% |
| Somchem S355 | <<locked>> | 82% | 34,171 psi | 54% | 2749 fps | 95.4% |
| Somchem S365 | <<locked>> | 90% | 31,836 psi | 50% | 2772 fps | 95.8% |
| Unknown powder | <<locked>> | 92% | 42,076 psi | 66% | 2976 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 53,838 psi | 84% | 2953 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 45,716 psi | 72% | 2887 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 38,740 psi | 61% | 2769 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,666 psi | 57% | 2789 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,159 psi | 58% | 2785 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 84% | 30,879 psi | 48% | 2641 fps | 95.7% |
| Vihtavuori N160 | <<locked>> | 92% | 42,337 psi | 66% | 2953 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 80% | 44,744 psi | 70% | 2972 fps | 99% |
| Vihtavuori N540 | <<locked>> | 80% | 36,753 psi | 58% | 2799 fps | 99% |
| Vihtavuori N550 | <<locked>> | 92% | 42,714 psi | 67% | 2999 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 33,417 psi | 52% | 2707 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 45,266 psi | 71% | 3022 fps | 99.5% |
| Winchester 760 | <<locked>> | 96% | 52,214 psi | 82% | 3186 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,443 psi | 76% | 3068 fps | 99% |
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 114 powders for .300 WSM loaded with the .308 | 136gr | Peregrine VLR-4. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,320 fps; across all powders the maximum-charge window runs from 1,959 fps to 3,320 fps. Accurate 4350 gives the best case fill at 100 %, and 114 of the 114 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 49–90 %, leaving at least 10 % headroom. The 136.0 gr projectile in 0.308" calls for a 1:12.5 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for .300 WSM with the .308 | 136gr | Peregrine VLR-4 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-26, Hodgdon H4350, IMR 4350 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.