Load Specifications
Load data in caliber .300 Weath. Mag. with .308 | 134gr | CutEdge ESP Raptor bullet and 93 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance 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.
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>> | 84% | 57,479 psi | 90% | 3173 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,463 psi | 88% | 3192 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,476 psi | 85% | 3209 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,782 psi | 87% | 3192 fps | 96.6% |
| Accurate 4064 | <<locked>> | 90% | 56,550 psi | 89% | 3245 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,479 psi | 90% | 3340 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 86% | 56,884 psi | 89% | 3284 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 90% | 54,694 psi | 86% | 3225 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,680 psi | 87% | 3228 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,942 psi | 89% | 3205 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,421 psi | 90% | 3419 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 54,810 psi | 86% | 3251 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,274 psi | 87% | 3274 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,810 psi | 86% | 3343 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,376 psi | 88% | 3386 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,887 psi | 66% | 3091 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,659 psi | 75% | 3281 fps | 98.2% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,058 psi | 89% | 3297 fps | 99.6% |
| Bofors RP3 | <<locked>> | 90% | 55,419 psi | 87% | 3264 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,376 psi | 87% | 3228 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,203 psi | 90% | 3209 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,419 psi | 87% | 3255 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,405 psi | 88% | 3278 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 96% | 56,565 psi | 89% | 3333 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 94% | 56,884 psi | 89% | 3294 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 86% | 57,522 psi | 90% | 3297 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,708 psi | 86% | 3261 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,508 psi | 90% | 3327 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,537 psi | 90% | 3376 fps | 97.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,375 psi | 55% | 2051 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,274 psi | 87% | 3241 fps | 99.9% |
| IMR 3031 | <<locked>> | 86% | 57,624 psi | 90% | 3278 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,595 psi | 90% | 3268 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,261 psi | 90% | 3241 fps | 97.6% |
| IMR 4350 | <<locked>> | 98% | 56,144 psi | 88% | 3258 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,421 psi | 90% | 3268 fps | 97.6% |
| IMR 4831 | <<locked>> | 98% | 54,172 psi | 85% | 3264 fps | 99.3% |
| IMR 4895 | <<locked>> | 88% | 56,724 psi | 89% | 3307 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 84% | 55,680 psi | 87% | 3228 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,782 psi | 89% | 3251 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,217 psi | 88% | 3205 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 57,261 psi | 90% | 3258 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,782 psi | 89% | 3258 fps | 98.7% |
| Lovex S070 | <<locked>> | 96% | 54,346 psi | 85% | 3235 fps | 97.4% |
| Norma 201 | <<locked>> | 86% | 55,288 psi | 87% | 3219 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,144 psi | 88% | 3225 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,476 psi | 85% | 3258 fps | 99.8% |
| Norma URP | <<locked>> | 98% | 56,362 psi | 88% | 3327 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 88% | 55,390 psi | 87% | 3284 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 98% | 55,245 psi | 87% | 3314 fps | 98.2% |
| Ramshot TAC | <<locked>> | 84% | 56,217 psi | 88% | 3245 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,840 psi | 88% | 3264 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,608 psi | 89% | 3228 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,998 psi | 56% | 2100 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,695 psi | 89% | 3258 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,970 psi | 88% | 3346 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,811 psi | 87% | 3383 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,551 psi | 90% | 3360 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,826 psi | 89% | 3392 fps | 99.3% |
| Rottweil R 901 | <<locked>> | 84% | 55,898 psi | 88% | 3202 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,956 psi | 88% | 3222 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,274 psi | 87% | 3255 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 55,376 psi | 87% | 3228 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,782 psi | 89% | 3258 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,782 psi | 89% | 3251 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,261 psi | 90% | 3258 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,346 psi | 85% | 3235 fps | 97.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,522 psi | 90% | 3327 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,520 psi | 85% | 3219 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,434 psi | 87% | 3248 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,739 psi | 89% | 3159 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,508 psi | 90% | 3156 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,217 psi | 90% | 3205 fps | 97.6% |
| Somchem S321 | <<locked>> | 82% | 57,043 psi | 89% | 3261 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,159 psi | 88% | 3153 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,259 psi | 85% | 3209 fps | 99.7% |
| Somchem S355 | <<locked>> | 92% | 55,419 psi | 87% | 3251 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,824 psi | 86% | 3327 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 56,420 psi | 88% | 3120 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,087 psi | 89% | 3143 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,883 psi | 88% | 3186 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,797 psi | 89% | 3199 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,290 psi | 90% | 3232 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,056 psi | 86% | 3261 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 84% | 56,173 psi | 88% | 3228 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,114 psi | 86% | 3192 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,273 psi | 85% | 3264 fps | 99.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,282 psi | 73% | 3176 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,622 psi | 87% | 3235 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,594 psi | 89% | 3281 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,782 psi | 89% | 3337 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,463 psi | 59% | 3084 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,550 psi | 87% | 3258 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% | 50,604 psi | 79% | 3068 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,902 psi | 67% | 2966 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,850 psi | 80% | 3150 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 52,011 psi | 82% | 3123 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 40,625 psi | 64% | 2959 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 37,333 psi | 59% | 2936 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 46,847 psi | 73% | 3100 fps | 99% |
| ADI AR 2208 | <<locked>> | 80% | 39,639 psi | 62% | 2920 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,965 psi | 77% | 3110 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 49,574 psi | 78% | 3097 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,033 psi | 67% | 3130 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,523 psi | 62% | 2946 fps | 98.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,409 psi | 66% | 3018 fps | 97.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 37,086 psi | 58% | 2949 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,287 psi | 54% | 2897 fps | 96.2% |
| Alliant Reloder-23 | <<locked>> | 92% | 32,155 psi | 50% | 2828 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 94% | 38,029 psi | 60% | 3045 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,485 psi | 73% | 3100 fps | 98.1% |
| Bofors RP3 | <<locked>> | 80% | 39,233 psi | 61% | 2946 fps | 98.3% |
| Bofors RP7 | <<locked>> | 90% | 48,660 psi | 76% | 3104 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,473 psi | 79% | 3100 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,254 psi | 76% | 3130 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 39,943 psi | 63% | 2949 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 90% | 46,064 psi | 72% | 3133 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 92% | 53,272 psi | 83% | 3228 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 47,297 psi | 74% | 3110 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 31,952 psi | 50% | 2772 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,584 psi | 68% | 3074 fps | 99.2% |
| Hodgdon Superformance | 80 gr | 92% | 49,458 psi | 78% | 3225 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,411 psi | 41% | 1837 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,411 psi | 71% | 3054 fps | 99.1% |
| IMR 3031 | <<locked>> | 80% | 47,224 psi | 74% | 3110 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,640 psi | 65% | 2963 fps | 97.6% |
| IMR 4166 Enduron | <<locked>> | 82% | 47,239 psi | 74% | 3054 fps | 95.5% |
| IMR 4350 | <<locked>> | 94% | 49,385 psi | 77% | 3136 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 88% | 47,442 psi | 74% | 3081 fps | 95.4% |
| IMR 4831 | <<locked>> | 86% | 36,100 psi | 57% | 2887 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 43,497 psi | 68% | 3058 fps | 98.5% |
| IMR 8208 XBR | <<locked>> | 80% | 48,965 psi | 77% | 3110 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 46,224 psi | 72% | 3071 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,586 psi | 73% | 3031 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 41,611 psi | 65% | 2966 fps | 99% |
| Lovex S065 | <<locked>> | 86% | 41,321 psi | 65% | 2953 fps | 95.3% |
| Lovex S070 | <<locked>> | 90% | 44,846 psi | 70% | 3048 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 45,585 psi | 71% | 3041 fps | 99.5% |
| Norma 202 | <<locked>> | 80% | 46,267 psi | 73% | 3054 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,800 psi | 66% | 3005 fps | 98.1% |
| Norma URP | <<locked>> | 86% | 37,594 psi | 59% | 2940 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 41,727 psi | 65% | 3022 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 92% | 45,092 psi | 71% | 3120 fps | 95.9% |
| Ramshot TAC | <<locked>> | 80% | 49,052 psi | 77% | 3114 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,776 psi | 76% | 3136 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,895 psi | 83% | 3166 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,716 psi | 42% | 1883 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 43,221 psi | 68% | 2995 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,092 psi | 71% | 3140 fps | 98.2% |
| ReloadSwiss RS 60 | 65.9 gr | 80% | 36,535 psi | 57% | 2979 fps | 99.2% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 37,217 psi | 58% | 2953 fps | 95% |
| ReloadSwiss RS 70 | 73.6 gr | 88% | 39,871 psi | 62% | 3031 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 49,342 psi | 77% | 3091 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,308 psi | 68% | 2986 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 80% | 36,753 psi | 58% | 2881 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 90% | 48,660 psi | 76% | 3104 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 86% | 41,321 psi | 65% | 2953 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,224 psi | 72% | 3071 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,611 psi | 65% | 2966 fps | 99% |
| Shooters World SW4350 | <<locked>> | 90% | 44,846 psi | 70% | 3048 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,985 psi | 60% | 2936 fps | 96.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,442 psi | 74% | 3087 fps | 97.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,339 psi | 71% | 3058 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,992 psi | 74% | 2999 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,204 psi | 61% | 2841 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 46,818 psi | 73% | 3018 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 53,403 psi | 84% | 3202 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,528 psi | 73% | 2992 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,282 psi | 74% | 3081 fps | 99% |
| Somchem S355 | <<locked>> | 80% | 37,521 psi | 59% | 2887 fps | 97.4% |
| Somchem S365 | <<locked>> | 82% | 29,167 psi | 46% | 2743 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 52,982 psi | 83% | 3068 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,442 psi | 74% | 2989 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,149 psi | 68% | 2972 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,758 psi | 69% | 2979 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,795 psi | 56% | 2818 fps | 98.2% |
| Vihtavuori N160 | <<locked>> | 86% | 39,247 psi | 62% | 2946 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 80% | 49,226 psi | 77% | 3107 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 42,134 psi | 66% | 2959 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 38,725 psi | 61% | 2943 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 92% | 35,143 psi | 55% | 2920 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,836 psi | 50% | 2726 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 49,197 psi | 77% | 3156 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 46,064 psi | 72% | 3133 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 96% | 32,706 psi | 51% | 2930 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,049 psi | 71% | 3064 fps | 99.1% |
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 111 powders for .300 Weath. Mag. loaded with the .308 | 134gr | CutEdge ESP Raptor. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,419 fps; across all powders the maximum-charge window runs from 2,051 fps to 3,419 fps. Accurate 3100 gives the best case fill at 100 %, and 111 of the 111 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 134.0 gr projectile in 0.308" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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, Hodgdon Superformance, ReloadSwiss RS 60 rank at the top here: for .300 Weath. Mag. with the .308 | 134gr | CutEdge ESP Raptor they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, Alliant Reloder-19, Alliant Reloder-22 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.