Load Specifications
Load data in caliber .300 WSM with .308 | 135gr | Peregrine VRG-3 Lever 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, 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.
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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>> | 86% | 55,042 psi | 86% | 3097 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 57,072 psi | 89% | 3173 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 56,652 psi | 89% | 3163 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 53,838 psi | 84% | 3169 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 53,838 psi | 84% | 3169 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 56,637 psi | 89% | 3209 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,040 psi | 83% | 3222 fps | 98.6% |
| Accurate LT-30 | <<locked>> | 82% | 57,479 psi | 90% | 3091 fps | 100% |
| ADI AR 2206H | <<locked>> | 88% | 54,317 psi | 85% | 3192 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 94% | 55,593 psi | 87% | 3189 fps | 99.2% |
| ADI Benchmark 8208 | <<locked>> | 88% | 56,971 psi | 89% | 3202 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 57,566 psi | 90% | 3182 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 54,998 psi | 86% | 3261 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 54,070 psi | 85% | 3310 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 55,114 psi | 86% | 3212 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 54,694 psi | 86% | 3107 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 55,840 psi | 88% | 3235 fps | 99.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 51,474 psi | 81% | 3232 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 98% | 56,492 psi | 89% | 3343 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,318 psi | 57% | 2907 fps | 96.1% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 57,101 psi | 89% | 3081 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 54,360 psi | 85% | 3202 fps | 98.9% |
| Bofors RP3 | <<locked>> | 94% | 55,695 psi | 87% | 3225 fps | 99.9% |
| Bofors RP7 | <<locked>> | 98% | 56,086 psi | 88% | 3186 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 86% | 55,376 psi | 87% | 3133 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 56,347 psi | 88% | 3228 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 54,578 psi | 86% | 3274 fps | 99.2% |
| Hodgdon H322 | <<locked>> | 86% | 56,768 psi | 89% | 3189 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 57,000 psi | 89% | 3238 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 96% | 54,607 psi | 86% | 3251 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 88% | 54,882 psi | 86% | 3205 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 47,427 psi | 74% | 3094 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 54,244 psi | 85% | 3235 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,940 psi | 55% | 1985 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 55,085 psi | 86% | 3189 fps | 99.7% |
| IMR 3031 | <<locked>> | 92% | 56,362 psi | 88% | 3222 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 57,493 psi | 90% | 3215 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 96% | 57,232 psi | 90% | 3179 fps | 96.8% |
| IMR 4198 | <<locked>> | 82% | 54,911 psi | 86% | 3068 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 54,795 psi | 86% | 3166 fps | 96.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,396 psi | 70% | 3041 fps | 97% |
| IMR 4895 | <<locked>> | 92% | 57,334 psi | 90% | 3271 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 88% | 56,971 psi | 89% | 3202 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 57,276 psi | 90% | 3186 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 57,566 psi | 90% | 3222 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 57,595 psi | 90% | 3176 fps | 99.7% |
| Lovex S062 | <<locked>> | 92% | 54,578 psi | 86% | 3173 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 57,290 psi | 90% | 3215 fps | 98.1% |
| Lovex S070ᴾ | <<locked>> | 100% | 54,534 psi | 85% | 3186 fps | 96.6% |
| Norma 201 | <<locked>> | 90% | 56,275 psi | 88% | 3189 fps | 100% |
| Norma 202 | <<locked>> | 90% | 57,145 psi | 90% | 3199 fps | 100% |
| Norma 203B | <<locked>> | 92% | 55,013 psi | 86% | 3222 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 52,286 psi | 82% | 3212 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 92% | 55,883 psi | 88% | 3248 fps | 99.6% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 51,503 psi | 81% | 3202 fps | 96.7% |
| Ramshot TAC | <<locked>> | 88% | 57,653 psi | 90% | 3215 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 88% | 57,087 psi | 89% | 3235 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 84% | 54,621 psi | 86% | 3146 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,172 psi | 55% | 2028 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 56,623 psi | 89% | 3186 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 53,896 psi | 84% | 3156 fps | 96.8% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 56,478 psi | 89% | 3310 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 56,159 psi | 88% | 3350 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 53,084 psi | 83% | 3248 fps | 98.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 53,330 psi | 84% | 3274 fps | 98.1% |
| Rottweil R 901 | <<locked>> | 88% | 56,971 psi | 89% | 3176 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 56,840 psi | 89% | 3189 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 55,535 psi | 87% | 3215 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 98% | 56,086 psi | 88% | 3186 fps | 96% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 57,290 psi | 90% | 3215 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 90% | 57,566 psi | 90% | 3222 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 54,578 psi | 86% | 3173 fps | 99.9% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 54,534 psi | 85% | 3186 fps | 96.6% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 56,072 psi | 88% | 3150 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 54,114 psi | 85% | 3228 fps | 99.4% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 55,724 psi | 87% | 3133 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 55,898 psi | 88% | 3189 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 56,565 psi | 89% | 3219 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 54,868 psi | 86% | 3084 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 54,897 psi | 86% | 3074 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 54,476 psi | 85% | 3107 fps | 96.2% |
| Somchem S321 | <<locked>> | 84% | 54,795 psi | 86% | 3179 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 57,348 psi | 90% | 3127 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 55,535 psi | 87% | 3182 fps | 99.5% |
| Somchem S355 | <<locked>> | 96% | 55,811 psi | 87% | 3215 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 46,673 psi | 73% | 3153 fps | 99.8% |
| Unknown powderᴾ | <<locked>> | 100% | 57,392 psi | 90% | 3287 fps | 98.6% |
| Vihtavuori N130 | <<locked>> | 86% | 56,724 psi | 89% | 3084 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 57,421 psi | 90% | 3110 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 56,405 psi | 88% | 3156 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 56,681 psi | 89% | 3159 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 53,635 psi | 84% | 3136 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 54,302 psi | 85% | 3196 fps | 98.6% |
| Vihtavuori N530 | <<locked>> | 86% | 56,652 psi | 89% | 3209 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 56,594 psi | 89% | 3189 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 54,520 psi | 85% | 3248 fps | 98.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,117 psi | 61% | 2992 fps | 96.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 56,130 psi | 88% | 3199 fps | 99.9% |
| Winchester 748 | <<locked>> | 84% | 54,433 psi | 85% | 3205 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 54,607 psi | 86% | 3251 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 82% | 54,012 psi | 85% | 3189 fps | 99.7% |
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% | 45,484 psi | 71% | 2943 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,792 psi | 78% | 3058 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,623 psi | 59% | 2831 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,337 psi | 68% | 2982 fps | 99.7% |
| Accurate 2520 | <<locked>> | 80% | 43,337 psi | 68% | 2982 fps | 99.7% |
| Accurate 4064 | <<locked>> | 80% | 35,621 psi | 56% | 2812 fps | 99.2% |
| Accurate 4350 | <<locked>> | 92% | 39,726 psi | 62% | 2959 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 53,882 psi | 84% | 3035 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 41,887 psi | 66% | 2949 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 82% | 37,956 psi | 59% | 2835 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,034 psi | 69% | 2966 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 80% | 43,845 psi | 69% | 2969 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 51,416 psi | 81% | 3199 fps | 99.5% |
| Alliant Power Pro 2000-MR | 59.7 gr | 80% | 38,087 psi | 60% | 2959 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,925 psi | 55% | 2795 fps | 96.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,169 psi | 80% | 3051 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,652 psi | 59% | 2867 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 92% | 39,798 psi | 62% | 2976 fps | 95.6% |
| Alliant Reloder-17 | 61.7 gr | 84% | 34,635 psi | 54% | 2867 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 98% | 34,040 psi | 53% | 2841 fps | 95% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 53,490 psi | 84% | 3028 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,234 psi | 65% | 2946 fps | 96.1% |
| Bofors RP3 | <<locked>> | 80% | 34,258 psi | 54% | 2789 fps | 96.2% |
| Bofors RP7 | <<locked>> | 96% | 52,794 psi | 83% | 3127 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,992 psi | 72% | 2966 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,743 psi | 67% | 2982 fps | 99.1% |
| Hodgdon CFE223 | <<locked>> | 80% | 47,268 psi | 74% | 3140 fps | 98.1% |
| Hodgdon H322 | <<locked>> | 80% | 46,847 psi | 73% | 3025 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 40,640 psi | 64% | 2923 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 94% | 50,821 psi | 80% | 3182 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 42,250 psi | 66% | 2963 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 34,229 psi | 54% | 2795 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,926 psi | 56% | 2861 fps | 96.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,918 psi | 41% | 1778 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,637 psi | 59% | 2838 fps | 96.8% |
| IMR 3031 | <<locked>> | 80% | 38,130 psi | 60% | 2894 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 37,043 psi | 58% | 2808 fps | 95.5% |
| IMR 4166 Enduron | <<locked>> | 92% | 50,647 psi | 79% | 3064 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 51,590 psi | 81% | 3018 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 51,459 psi | 81% | 3107 fps | 95.5% |
| IMR 4831 | <<locked>> | 96% | 39,088 psi | 61% | 2927 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 38,551 psi | 60% | 2900 fps | 96.6% |
| IMR 8208 XBR | <<locked>> | 80% | 44,034 psi | 69% | 2966 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 80% | 49,719 psi | 78% | 3064 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 40,640 psi | 64% | 2927 fps | 99.4% |
| Lovex S060 | <<locked>> | 80% | 42,264 psi | 66% | 2890 fps | 97.6% |
| Lovex S062 | <<locked>> | 80% | 37,086 psi | 58% | 2822 fps | 97.5% |
| Lovex S065 | <<locked>> | 92% | 44,454 psi | 70% | 2979 fps | 95.3% |
| Lovex S070 | <<locked>> | 96% | 48,066 psi | 75% | 3068 fps | 95% |
| Norma 201 | <<locked>> | 80% | 40,901 psi | 64% | 2900 fps | 98.4% |
| Norma 202 | <<locked>> | 80% | 41,234 psi | 65% | 2917 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 36,999 psi | 58% | 2854 fps | 96% |
| Norma URP | <<locked>> | 92% | 40,001 psi | 63% | 2963 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 36,695 psi | 57% | 2864 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 98% | 48,008 psi | 75% | 3133 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 44,077 psi | 69% | 2963 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,323 psi | 68% | 2982 fps | 97.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,776 psi | 75% | 3022 fps | 98.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,034 psi | 41% | 1814 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 49,487 psi | 78% | 3068 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 47,210 psi | 74% | 3031 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,276 psi | 62% | 2972 fps | 96% |
| ReloadSwiss RS 60 | 58.7 gr | 80% | 32,068 psi | 50% | 2805 fps | 97% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 39,697 psi | 62% | 2979 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 43,149 psi | 68% | 3064 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 44,541 psi | 70% | 2956 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 38,827 psi | 61% | 2844 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 80% | 32,184 psi | 50% | 2726 fps | 95% |
| Rottweil R 907 | <<locked>> | 96% | 52,794 psi | 83% | 3127 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 92% | 44,454 psi | 70% | 2979 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,640 psi | 64% | 2927 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 37,086 psi | 58% | 2822 fps | 97.5% |
| Shooters World SW4350 | <<locked>> | 96% | 48,066 psi | 75% | 3068 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 52,533 psi | 82% | 3091 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 35,868 psi | 56% | 2848 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 52,330 psi | 82% | 3081 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,119 psi | 66% | 2927 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,451 psi | 63% | 2910 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,569 psi | 67% | 2867 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,157 psi | 55% | 2710 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 50,937 psi | 80% | 3045 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 47,703 psi | 75% | 3054 fps | 99.5% |
| Somchem S335 | <<locked>> | 80% | 42,047 psi | 66% | 2867 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,959 psi | 66% | 2930 fps | 97.4% |
| Somchem S355 | <<locked>> | 80% | 33,228 psi | 52% | 2740 fps | 95.2% |
| Somchem S365 | <<locked>> | 88% | 31,183 psi | 49% | 2772 fps | 95.7% |
| Unknown powder | <<locked>> | 92% | 43,801 psi | 69% | 3038 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 47,268 psi | 74% | 2936 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,030 psi | 63% | 2818 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,232 psi | 60% | 2841 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,450 psi | 60% | 2831 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 82% | 30,182 psi | 47% | 2638 fps | 95.6% |
| Vihtavuori N160 | <<locked>> | 90% | 41,191 psi | 65% | 2946 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 46,340 psi | 73% | 3028 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 80% | 38,130 psi | 60% | 2848 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 90% | 41,582 psi | 65% | 2992 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 98% | 36,637 psi | 57% | 2933 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 34,664 psi | 54% | 2762 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 47,210 psi | 74% | 3081 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 50,821 psi | 80% | 3182 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,111 psi | 79% | 3120 fps | 99.4% |
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 113 powders for .300 WSM loaded with the .308 | 135gr | Peregrine VRG-3 Lever. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,350 fps; across all powders the maximum-charge window runs from 1,985 fps to 3,350 fps. Accurate 3100 gives the best case fill at 100 %, and 113 of the 113 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 135.0 gr projectile in 0.308" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, Alliant Reloder-16 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 | 135gr | Peregrine VRG-3 Lever they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, Alliant Reloder-19, Alliant Reloder-26 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.