Load Specifications
Load data in caliber .300 PRC with .308 | 134gr | CutEdge ESP Raptor bullet and 98 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, ReloadSwiss RS 70 and Hodgdon Superformance.
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>> | 82% | 58,102 psi | 89% | 3205 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 57,914 psi | 89% | 3232 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 56,376 psi | 87% | 3238 fps | 97.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 49,763 psi | 77% | 3189 fps | 97.8% |
| Accurate 4064 | <<locked>> | 88% | 58,088 psi | 89% | 3284 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 55,738 psi | 86% | 3333 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 84% | 57,885 psi | 89% | 3327 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 55,622 psi | 86% | 3268 fps | 99.8% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 57,319 psi | 88% | 3373 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 56,536 psi | 87% | 3268 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 58,160 psi | 89% | 3238 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 58,726 psi | 90% | 3465 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 55,985 psi | 86% | 3294 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 56,434 psi | 87% | 3317 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 96% | 56,521 psi | 87% | 3399 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 92% | 58,334 psi | 90% | 3432 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 56,449 psi | 87% | 3356 fps | 96.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,775 psi | 72% | 3215 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,843 psi | 63% | 3094 fps | 96.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 54,230 psi | 83% | 3428 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 58,204 psi | 90% | 3340 fps | 99.9% |
| Bofors RP3 | <<locked>> | 88% | 56,927 psi | 88% | 3310 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 56,463 psi | 87% | 3281 fps | 97.6% |
| Hodgdon Benchmark | <<locked>> | 82% | 57,740 psi | 89% | 3248 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 56,478 psi | 87% | 3294 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 57,624 psi | 89% | 3327 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 94% | 58,479 psi | 90% | 3392 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 92% | 58,175 psi | 89% | 3346 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 84% | 58,523 psi | 90% | 3337 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 56,956 psi | 88% | 3314 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 54,984 psi | 85% | 3307 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 55,114 psi | 85% | 3363 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,853 psi | 55% | 2096 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 55,985 psi | 86% | 3278 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 55,187 psi | 85% | 3258 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 58,581 psi | 90% | 3310 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 58,015 psi | 89% | 3287 fps | 98.3% |
| IMR 4350 | <<locked>> | 96% | 57,508 psi | 88% | 3314 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 92% | 58,334 psi | 90% | 3317 fps | 98.3% |
| IMR 4831 | <<locked>> | 96% | 56,115 psi | 86% | 3320 fps | 99.7% |
| IMR 4895 | <<locked>> | 86% | 57,943 psi | 89% | 3353 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 56,536 psi | 87% | 3268 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 58,131 psi | 89% | 3291 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 56,652 psi | 87% | 3241 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 58,407 psi | 90% | 3297 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 58,059 psi | 89% | 3307 fps | 99.2% |
| Lovex S070 | <<locked>> | 94% | 55,883 psi | 86% | 3287 fps | 98.2% |
| Norma 201 | <<locked>> | 84% | 56,246 psi | 87% | 3261 fps | 100% |
| Norma 202 | <<locked>> | 84% | 57,101 psi | 88% | 3261 fps | 100% |
| Norma 203B | <<locked>> | 86% | 55,695 psi | 86% | 3301 fps | 100% |
| Norma 204 | <<locked>> | 96% | 58,668 psi | 90% | 3369 fps | 96.9% |
| Norma MRPᴾ | <<locked>> | 100% | 53,055 psi | 82% | 3373 fps | 97.6% |
| Norma URP | <<locked>> | 96% | 58,305 psi | 90% | 3379 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 86% | 56,623 psi | 87% | 3327 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 57,203 psi | 88% | 3373 fps | 99% |
| Ramshot TAC | <<locked>> | 82% | 56,782 psi | 87% | 3284 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 56,753 psi | 87% | 3304 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,463 psi | 56% | 2146 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 57,769 psi | 89% | 3307 fps | 98.8% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 57,450 psi | 88% | 3392 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 57,783 psi | 89% | 3432 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 55,753 psi | 86% | 3353 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 58,740 psi | 90% | 3455 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 82% | 56,826 psi | 87% | 3241 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 56,811 psi | 87% | 3258 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 56,797 psi | 87% | 3301 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 55,347 psi | 85% | 3333 fps | 96.7% |
| Rottweil R 907 | <<locked>> | 92% | 56,463 psi | 87% | 3281 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 94% | 58,059 psi | 89% | 3307 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 58,131 psi | 89% | 3291 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 58,407 psi | 90% | 3297 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 55,883 psi | 86% | 3287 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 55,143 psi | 85% | 3307 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 55,376 psi | 85% | 3261 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 56,391 psi | 87% | 3291 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 57,406 psi | 88% | 3196 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 58,334 psi | 90% | 3189 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 58,407 psi | 90% | 3258 fps | 98.4% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 54,839 psi | 84% | 3327 fps | 96.5% |
| Somchem S335 | <<locked>> | 84% | 56,913 psi | 88% | 3186 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 55,303 psi | 85% | 3251 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 56,884 psi | 88% | 3297 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 57,290 psi | 88% | 3379 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 56,130 psi | 86% | 3310 fps | 97.6% |
| Vihtavuori N133 | <<locked>> | 84% | 57,885 psi | 89% | 3176 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 57,159 psi | 88% | 3222 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 57,899 psi | 89% | 3238 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 58,508 psi | 90% | 3271 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 56,898 psi | 88% | 3314 fps | 99.7% |
| Vihtavuori N530 | <<locked>> | 82% | 56,942 psi | 88% | 3264 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 56,144 psi | 86% | 3228 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 55,956 psi | 86% | 3314 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 52,286 psi | 80% | 3304 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 57,174 psi | 88% | 3281 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 57,682 psi | 89% | 3320 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 58,711 psi | 90% | 3396 fps | 98.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,250 psi | 65% | 3245 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 56,463 psi | 87% | 3297 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% | 54,578 psi | 84% | 3150 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 47,282 psi | 73% | 3061 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,050 psi | 71% | 3038 fps | 95% |
| Accurate 3100 | <<locked>> | 94% | 40,147 psi | 62% | 2986 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 44,773 psi | 69% | 3058 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 36,187 psi | 56% | 2923 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 50,836 psi | 78% | 3202 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 43,134 psi | 66% | 3025 fps | 98.3% |
| ADI AR 2209 | <<locked>> | 96% | 49,995 psi | 77% | 3235 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 53,011 psi | 82% | 3209 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 54,259 psi | 83% | 3186 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,282 psi | 73% | 3248 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,105 psi | 66% | 3048 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,354 psi | 71% | 3127 fps | 99% |
| Alliant Reloder-16 | 68 gr | 82% | 35,650 psi | 55% | 2936 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,797 psi | 58% | 3018 fps | 98.2% |
| Alliant Reloder-19 | <<locked>> | 96% | 49,400 psi | 76% | 3222 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 88% | 31,328 psi | 48% | 2822 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 98% | 38,218 psi | 59% | 3022 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 90% | 36,883 psi | 57% | 3038 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,618 psi | 78% | 3209 fps | 99.2% |
| Bofors RP3 | <<locked>> | 80% | 43,207 psi | 66% | 3054 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 46,572 psi | 72% | 3087 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 54,215 psi | 83% | 3189 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,721 psi | 81% | 3232 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,758 psi | 67% | 3061 fps | 97.5% |
| Hodgdon H414 | <<locked>> | 86% | 44,382 psi | 68% | 3117 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 88% | 51,068 psi | 79% | 3215 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 80% | 51,416 psi | 79% | 3215 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,734 psi | 47% | 2753 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,935 psi | 74% | 3182 fps | 99.9% |
| Hodgdon Superformance | 83.1 gr | 88% | 47,326 psi | 73% | 3209 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,716 psi | 41% | 1880 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,110 psi | 76% | 3156 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 51,706 psi | 80% | 3202 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,339 psi | 70% | 3068 fps | 98.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,659 psi | 73% | 3094 fps | 96.3% |
| IMR 4350 | <<locked>> | 90% | 47,514 psi | 73% | 3123 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 45,310 psi | 70% | 3064 fps | 95.6% |
| IMR 4831 | <<locked>> | 82% | 34,896 psi | 54% | 2871 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 47,558 psi | 73% | 3163 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 80% | 53,011 psi | 82% | 3209 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,618 psi | 78% | 3173 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,024 psi | 77% | 3127 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 45,252 psi | 70% | 3064 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 39,610 psi | 61% | 2936 fps | 95.4% |
| Lovex S070 | <<locked>> | 86% | 43,163 psi | 66% | 3035 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 49,487 psi | 76% | 3143 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,038 psi | 77% | 3146 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,687 psi | 70% | 3114 fps | 99.2% |
| Norma 204 | <<locked>> | 92% | 51,024 psi | 78% | 3232 fps | 95.2% |
| Norma MRP | <<locked>> | 96% | 45,832 psi | 71% | 3222 fps | 95.7% |
| Norma URP | <<locked>> | 82% | 36,260 psi | 56% | 2923 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 45,934 psi | 71% | 3130 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 86% | 40,640 psi | 63% | 3038 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 53,127 psi | 82% | 3222 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 53,055 psi | 82% | 3241 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,035 psi | 42% | 1919 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,077 psi | 68% | 3041 fps | 96% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,879 psi | 77% | 3258 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,292 psi | 62% | 3097 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 36,071 psi | 55% | 2936 fps | 95.2% |
| ReloadSwiss RS 70 | 76.2 gr | 84% | 38,116 psi | 59% | 3015 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 53,229 psi | 82% | 3182 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,978 psi | 72% | 3084 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 40,509 psi | 62% | 2986 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 98% | 51,866 psi | 80% | 3271 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 86% | 46,572 psi | 72% | 3087 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 82% | 39,610 psi | 61% | 2936 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,618 psi | 78% | 3173 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,252 psi | 70% | 3064 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 86% | 43,163 psi | 66% | 3035 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,959 psi | 65% | 3048 fps | 98.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,663 psi | 79% | 3192 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,414 psi | 76% | 3166 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,430 psi | 78% | 3084 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,351 psi | 65% | 2923 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 44,599 psi | 69% | 3002 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 51,387 psi | 79% | 3261 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 50,256 psi | 77% | 3081 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,445 psi | 79% | 3186 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 41,147 psi | 63% | 2995 fps | 98.7% |
| Somchem S365 | <<locked>> | 80% | 30,298 psi | 47% | 2795 fps | 96.8% |
| Somchem S385 | <<locked>> | 94% | 45,672 psi | 70% | 3110 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 50,966 psi | 78% | 3071 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,963 psi | 72% | 3058 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,543 psi | 73% | 3068 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,218 psi | 60% | 2920 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 35,302 psi | 54% | 2864 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 53,301 psi | 82% | 3205 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,890 psi | 71% | 3054 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 37,289 psi | 57% | 2927 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 88% | 34,548 psi | 53% | 2910 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,737 psi | 53% | 2831 fps | 97.5% |
| Winchester 748 | <<locked>> | 80% | 53,780 psi | 83% | 3255 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 44,570 psi | 69% | 3120 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 90% | 29,762 psi | 46% | 2848 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,327 psi | 76% | 3169 fps | 99.8% |
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 116 powders for .300 PRC loaded with the .308 | 134gr | CutEdge ESP Raptor. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,465 fps; across all powders the maximum-charge window runs from 2,096 fps to 3,465 fps. Accurate 3100 gives the best case fill at 100 %, and 116 of the 116 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 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, Accurate MAGPRO, 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 Reloder-16, ReloadSwiss RS 70, Hodgdon Superformance rank at the top here: for .300 PRC 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, Accurate MAGPRO, ADI AR 2213, Bofors RP15 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.