Load Specifications
Load data in caliber .300 Weath. Mag. with .308 | 135gr | CutEdge ER Raptor bullet and 94 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 60.
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>> | 82% | 55,129 psi | 86% | 3136 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 54,273 psi | 85% | 3153 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,985 psi | 88% | 3228 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 57,043 psi | 89% | 3212 fps | 97.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,788 psi | 72% | 3087 fps | 96.5% |
| Accurate 4064 | <<locked>> | 88% | 54,433 psi | 85% | 3205 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,448 psi | 87% | 3301 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 84% | 54,737 psi | 86% | 3241 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 90% | 55,840 psi | 88% | 3245 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 84% | 57,130 psi | 90% | 3248 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,621 psi | 86% | 3166 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,766 psi | 86% | 3366 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,246 psi | 88% | 3268 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 56,739 psi | 89% | 3294 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,362 psi | 88% | 3369 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 92% | 54,157 psi | 85% | 3343 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,163 psi | 68% | 3117 fps | 99.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 49,429 psi | 77% | 3314 fps | 98.8% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,810 psi | 86% | 3255 fps | 99.5% |
| Bofors RP3 | <<locked>> | 90% | 56,898 psi | 89% | 3281 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 56,869 psi | 89% | 3251 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,042 psi | 86% | 3176 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 56,840 psi | 89% | 3274 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,128 psi | 85% | 3235 fps | 99% |
| Hodgdon H414 | <<locked>> | 94% | 54,375 psi | 85% | 3291 fps | 97.5% |
| Hodgdon H4350 | <<locked>> | 92% | 54,795 psi | 86% | 3255 fps | 96.2% |
| Hodgdon H4895 | <<locked>> | 84% | 55,303 psi | 87% | 3255 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,623 psi | 89% | 3284 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,216 psi | 87% | 3287 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 55,013 psi | 86% | 3327 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,621 psi | 56% | 2057 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,449 psi | 88% | 3255 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 55,492 psi | 87% | 3238 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,317 psi | 87% | 3228 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,940 psi | 86% | 3199 fps | 97.5% |
| IMR 4350 | <<locked>> | 98% | 57,551 psi | 90% | 3281 fps | 97.5% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,259 psi | 87% | 3228 fps | 97.4% |
| IMR 4831 | <<locked>> | 98% | 56,028 psi | 88% | 3291 fps | 99.6% |
| IMR 4895 | <<locked>> | 86% | 54,549 psi | 85% | 3268 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 84% | 57,130 psi | 90% | 3248 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,578 psi | 86% | 3212 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 57,377 psi | 90% | 3222 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 55,042 psi | 86% | 3219 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,665 psi | 86% | 3219 fps | 98.5% |
| Lovex S070 | <<locked>> | 96% | 55,840 psi | 88% | 3258 fps | 97.9% |
| Norma 201 | <<locked>> | 86% | 56,782 psi | 89% | 3238 fps | 100% |
| Norma 202 | <<locked>> | 86% | 57,464 psi | 90% | 3241 fps | 100% |
| Norma 203B | <<locked>> | 88% | 55,927 psi | 88% | 3278 fps | 99.9% |
| Norma MRPᴾ | <<locked>> | 100% | 48,704 psi | 76% | 3258 fps | 96.1% |
| Norma URP | <<locked>> | 96% | 54,230 psi | 85% | 3281 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 88% | 57,014 psi | 89% | 3307 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 98% | 56,971 psi | 89% | 3340 fps | 98.6% |
| Ramshot TAC | <<locked>> | 84% | 57,479 psi | 90% | 3264 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 84% | 57,450 psi | 90% | 3287 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,071 psi | 57% | 2103 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,375 psi | 85% | 3215 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 57,595 psi | 90% | 3369 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 53,693 psi | 84% | 3343 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 55,274 psi | 87% | 3320 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,592 psi | 86% | 3353 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 84% | 57,261 psi | 90% | 3219 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 57,203 psi | 90% | 3235 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 56,971 psi | 89% | 3278 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 56,869 psi | 89% | 3251 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,665 psi | 86% | 3219 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,578 psi | 86% | 3212 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,042 psi | 86% | 3219 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,840 psi | 88% | 3258 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,230 psi | 87% | 3284 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,115 psi | 88% | 3238 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 56,797 psi | 89% | 3264 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,505 psi | 85% | 3120 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,143 psi | 86% | 3117 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,853 psi | 86% | 3166 fps | 97.5% |
| Somchem S335 | <<locked>> | 86% | 57,551 psi | 90% | 3169 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,825 psi | 87% | 3232 fps | 99.9% |
| Somchem S355 | <<locked>> | 92% | 57,101 psi | 89% | 3274 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 56,623 psi | 89% | 3346 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 52,040 psi | 82% | 3209 fps | 96.3% |
| Vihtavuori N130 | <<locked>> | 82% | 57,537 psi | 90% | 3130 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 54,911 psi | 86% | 3107 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 57,276 psi | 90% | 3199 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,549 psi | 85% | 3163 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,100 psi | 86% | 3192 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 56,884 psi | 89% | 3284 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 84% | 57,667 psi | 90% | 3245 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,449 psi | 88% | 3209 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 55,782 psi | 87% | 3284 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,095 psi | 75% | 3205 fps | 99% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 57,159 psi | 90% | 3258 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,201 psi | 85% | 3238 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,621 psi | 86% | 3297 fps | 97.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,885 psi | 61% | 3127 fps | 99.2% |
| Winchester StaBALL Match | <<locked>> | 86% | 56,971 psi | 89% | 3274 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% | 51,793 psi | 81% | 3084 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,295 psi | 69% | 2986 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,185 psi | 82% | 3166 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 49,908 psi | 78% | 3084 fps | 95.5% |
| Accurate 3100 | <<locked>> | 98% | 42,583 psi | 67% | 3022 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 41,916 psi | 66% | 2979 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 35,955 psi | 56% | 2894 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 48,037 psi | 75% | 3120 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 80% | 40,741 psi | 64% | 2943 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,212 psi | 79% | 3130 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 51,126 psi | 80% | 3114 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,150 psi | 69% | 3153 fps | 98.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,538 psi | 64% | 2966 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,627 psi | 68% | 3041 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 84% | 35,723 psi | 56% | 2910 fps | 95.2% |
| Alliant Reloder-17 | 67.2 gr | 80% | 35,259 psi | 55% | 2923 fps | 96.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 33,272 psi | 52% | 2861 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 94% | 39,378 psi | 62% | 3081 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,616 psi | 75% | 3120 fps | 98.5% |
| Bofors RP3 | <<locked>> | 80% | 40,451 psi | 63% | 2969 fps | 98.7% |
| Bofors RP7 | <<locked>> | 88% | 46,920 psi | 74% | 3064 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,648 psi | 81% | 3114 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,443 psi | 77% | 3150 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,060 psi | 64% | 2972 fps | 96.3% |
| Hodgdon H414 | <<locked>> | 90% | 47,355 psi | 74% | 3156 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 90% | 51,097 psi | 80% | 3186 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 48,559 psi | 76% | 3133 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 30,719 psi | 48% | 2730 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,817 psi | 70% | 3097 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 90% | 47,456 psi | 74% | 3179 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,469 psi | 41% | 1841 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,398 psi | 73% | 3074 fps | 99.4% |
| IMR 3031 | <<locked>> | 80% | 48,501 psi | 76% | 3123 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,786 psi | 67% | 2986 fps | 98.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,310 psi | 71% | 3009 fps | 95.2% |
| IMR 4350 | <<locked>> | 92% | 47,572 psi | 75% | 3097 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 86% | 45,629 psi | 72% | 3041 fps | 95.2% |
| IMR 4831 | <<locked>> | 86% | 37,188 psi | 58% | 2907 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 44,744 psi | 70% | 3077 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 50,212 psi | 79% | 3130 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 47,514 psi | 74% | 3094 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,543 psi | 75% | 3048 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 42,612 psi | 67% | 2986 fps | 99.3% |
| Lovex S065 | <<locked>> | 84% | 39,827 psi | 62% | 2917 fps | 95% |
| Lovex S070 | <<locked>> | 90% | 46,108 psi | 72% | 3074 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 46,818 psi | 73% | 3064 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 47,326 psi | 74% | 3071 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,960 psi | 67% | 3028 fps | 98.5% |
| Norma MRP | <<locked>> | 98% | 45,513 psi | 71% | 3186 fps | 95.1% |
| Norma URP | <<locked>> | 84% | 36,100 psi | 57% | 2897 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 42,859 psi | 67% | 3038 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 90% | 43,294 psi | 68% | 3074 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 50,314 psi | 79% | 3133 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,937 psi | 78% | 3156 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,774 psi | 42% | 1883 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 44,425 psi | 70% | 3022 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,441 psi | 73% | 3163 fps | 98.6% |
| ReloadSwiss RS 60 | 67.2 gr | 80% | 37,579 psi | 59% | 3005 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 38,638 psi | 61% | 2982 fps | 95.8% |
| ReloadSwiss RS 70 | 75.1 gr | 88% | 41,089 psi | 64% | 3061 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 50,705 psi | 79% | 3110 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,512 psi | 70% | 3009 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 37,927 psi | 59% | 2904 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 88% | 46,920 psi | 74% | 3064 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 84% | 39,827 psi | 62% | 2917 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,514 psi | 74% | 3094 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,612 psi | 67% | 2986 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 90% | 46,108 psi | 72% | 3074 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,088 psi | 61% | 2959 fps | 97.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,602 psi | 76% | 3107 fps | 98.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,456 psi | 73% | 3081 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,051 psi | 75% | 3015 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,161 psi | 63% | 2854 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 44,875 psi | 70% | 2976 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 47,718 psi | 75% | 3009 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,428 psi | 76% | 3100 fps | 99.3% |
| Somchem S355 | <<locked>> | 80% | 38,682 psi | 61% | 2913 fps | 97.9% |
| Somchem S365 | <<locked>> | 80% | 28,079 psi | 44% | 2703 fps | 95.2% |
| Somchem S385 | <<locked>> | 98% | 48,646 psi | 76% | 3143 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 54,099 psi | 85% | 3081 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,515 psi | 76% | 3005 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,309 psi | 69% | 2989 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,947 psi | 70% | 2999 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,869 psi | 58% | 2841 fps | 98.6% |
| Vihtavuori N160 | <<locked>> | 84% | 37,811 psi | 59% | 2907 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 50,473 psi | 79% | 3127 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 43,236 psi | 68% | 2979 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 37,144 psi | 58% | 2900 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 90% | 34,055 psi | 53% | 2884 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,590 psi | 51% | 2746 fps | 96.2% |
| Winchester 748 | <<locked>> | 80% | 50,488 psi | 79% | 3173 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 44,483 psi | 70% | 3094 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 94% | 31,531 psi | 49% | 2884 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,224 psi | 72% | 3084 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 94 powders for .300 Weath. Mag. loaded with the .308 | 135gr | CutEdge ER Raptor. Alliant Reloder-16 delivers the highest muzzle velocity at 3,369 fps; across all powders the maximum-charge window runs from 2,057 fps to 3,369 fps. Accurate 3100 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 135.0 gr projectile in 0.308" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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 70, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .300 Weath. Mag. with the .308 | 135gr | CutEdge ER Raptor 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.