Load Specifications
Load data in caliber .300 PRC with .308 | 115gr | Lehigh Defense Controlled Chaos bullet and 92 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.
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% | 55,448 psi | 85% | 3383 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,085 psi | 85% | 3402 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 56,637 psi | 87% | 3474 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 57,537 psi | 89% | 3445 fps | 96.3% |
| Accurate 4064 | <<locked>> | 88% | 55,448 psi | 85% | 3455 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,999 psi | 86% | 3537 fps | 99% |
| ADI AR 2206H | <<locked>> | 86% | 58,639 psi | 90% | 3550 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 90% | 56,275 psi | 87% | 3484 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 57,217 psi | 88% | 3491 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 58,581 psi | 90% | 3471 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,201 psi | 85% | 3612 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,652 psi | 87% | 3514 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 88% | 56,971 psi | 88% | 3537 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,884 psi | 88% | 3609 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 94% | 58,595 psi | 90% | 3648 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,801 psi | 67% | 3333 fps | 98.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,299 psi | 77% | 3543 fps | 98.2% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,100 psi | 85% | 3491 fps | 99% |
| Bofors RP3 | <<locked>> | 90% | 57,580 psi | 89% | 3530 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 57,392 psi | 88% | 3488 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 84% | 58,697 psi | 90% | 3474 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 57,348 psi | 88% | 3517 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 58,436 psi | 90% | 3540 fps | 99% |
| Hodgdon H414 | <<locked>> | 96% | 58,755 psi | 90% | 3596 fps | 97.4% |
| Hodgdon H4350 | <<locked>> | 94% | 58,784 psi | 90% | 3550 fps | 96% |
| Hodgdon H4895 | <<locked>> | 84% | 55,492 psi | 85% | 3497 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 57,043 psi | 88% | 3524 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,564 psi | 85% | 3527 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 94% | 55,695 psi | 86% | 3556 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,563 psi | 55% | 2254 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,753 psi | 87% | 3497 fps | 99.8% |
| IMR 3031 | <<locked>> | 84% | 55,608 psi | 86% | 3491 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,666 psi | 86% | 3468 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,259 psi | 85% | 3435 fps | 96.6% |
| IMR 4350 | <<locked>> | 98% | 58,044 psi | 89% | 3514 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,622 psi | 86% | 3461 fps | 96.6% |
| IMR 4831 | <<locked>> | 98% | 56,492 psi | 87% | 3524 fps | 99.2% |
| IMR 4895 | <<locked>> | 88% | 58,465 psi | 90% | 3573 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 84% | 57,217 psi | 88% | 3491 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 55,216 psi | 85% | 3458 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 57,522 psi | 88% | 3465 fps | 99.8% |
| Lovex S062 | <<locked>> | 88% | 55,535 psi | 85% | 3465 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 55,288 psi | 85% | 3455 fps | 97.9% |
| Lovex S070 | <<locked>> | 96% | 56,478 psi | 87% | 3494 fps | 97.1% |
| Norma 201 | <<locked>> | 86% | 57,116 psi | 88% | 3484 fps | 100% |
| Norma 202 | <<locked>> | 86% | 57,769 psi | 89% | 3488 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,217 psi | 86% | 3520 fps | 99.7% |
| Norma URP | <<locked>> | 98% | 58,668 psi | 90% | 3586 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 88% | 57,435 psi | 88% | 3547 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 98% | 57,624 psi | 89% | 3576 fps | 98% |
| Ramshot TAC | <<locked>> | 84% | 57,928 psi | 89% | 3504 fps | 98.5% |
| Ramshot Wild Boar | <<locked>> | 84% | 57,827 psi | 89% | 3527 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 82% | 58,175 psi | 89% | 3488 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,129 psi | 56% | 2306 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 58,653 psi | 90% | 3517 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 57,856 psi | 89% | 3612 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 58,160 psi | 89% | 3655 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 56,130 psi | 86% | 3560 fps | 98.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 55,129 psi | 85% | 3583 fps | 98.6% |
| Rottweil R 901 | <<locked>> | 84% | 57,754 psi | 89% | 3471 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 57,856 psi | 89% | 3484 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 57,638 psi | 89% | 3524 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 94% | 57,392 psi | 88% | 3488 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 94% | 55,288 psi | 85% | 3455 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 84% | 55,216 psi | 85% | 3458 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,535 psi | 85% | 3465 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 56,478 psi | 87% | 3494 fps | 97.1% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,796 psi | 86% | 3524 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,550 psi | 87% | 3478 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 57,072 psi | 88% | 3507 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 58,363 psi | 90% | 3422 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,564 psi | 85% | 3360 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 55,593 psi | 86% | 3396 fps | 96.7% |
| Somchem S335 | <<locked>> | 86% | 57,827 psi | 89% | 3412 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,072 psi | 86% | 3465 fps | 99.6% |
| Somchem S355 | <<locked>> | 92% | 57,595 psi | 89% | 3517 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 57,363 psi | 88% | 3593 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 57,783 psi | 89% | 3383 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 58,639 psi | 90% | 3402 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 57,638 psi | 89% | 3448 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 58,595 psi | 90% | 3461 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,593 psi | 86% | 3435 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 57,188 psi | 88% | 3517 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 84% | 57,885 psi | 89% | 3491 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,913 psi | 88% | 3451 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 56,536 psi | 87% | 3520 fps | 98.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,762 psi | 75% | 3432 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 57,696 psi | 89% | 3488 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 58,523 psi | 90% | 3547 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 55,085 psi | 85% | 3527 fps | 96.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,610 psi | 61% | 3337 fps | 98.5% |
| Winchester StaBALL Match | <<locked>> | 86% | 57,406 psi | 88% | 3520 fps | 99.9% |
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% | 52,185 psi | 80% | 3330 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,150 psi | 69% | 3228 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,692 psi | 81% | 3406 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 53,882 psi | 83% | 3379 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 42,685 psi | 66% | 3212 fps | 99.9% |
| Accurate 4350 | <<locked>> | 86% | 39,320 psi | 60% | 3179 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 48,269 psi | 74% | 3350 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 80% | 41,031 psi | 63% | 3163 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,343 psi | 77% | 3366 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 51,198 psi | 79% | 3356 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,541 psi | 69% | 3379 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,002 psi | 63% | 3189 fps | 98% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,874 psi | 67% | 3264 fps | 97.3% |
| Alliant Reloder-16 | <<locked>> | 86% | 38,522 psi | 59% | 3189 fps | 95% |
| Alliant Reloder-17 | 73.5 gr | 80% | 35,621 psi | 55% | 3130 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 36,085 psi | 56% | 3130 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 96% | 43,366 psi | 67% | 3379 fps | 96.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,066 psi | 74% | 3353 fps | 97.8% |
| Bofors RP3 | <<locked>> | 80% | 40,988 psi | 63% | 3192 fps | 98% |
| Bofors RP7 | <<locked>> | 92% | 53,664 psi | 83% | 3419 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,953 psi | 80% | 3356 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,995 psi | 77% | 3386 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 80% | 41,582 psi | 64% | 3192 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 92% | 51,227 psi | 79% | 3451 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 92% | 55,013 psi | 85% | 3484 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 48,733 psi | 75% | 3366 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 35,592 psi | 55% | 3064 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,107 psi | 69% | 3320 fps | 98.9% |
| Hodgdon Superformance | <<locked>> | 92% | 51,721 psi | 80% | 3478 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,469 psi | 41% | 2024 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,731 psi | 72% | 3307 fps | 98.8% |
| IMR 3031 | <<locked>> | 80% | 48,834 psi | 75% | 3369 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,091 psi | 66% | 3209 fps | 97.2% |
| IMR 4166 Enduron | <<locked>> | 82% | 48,617 psi | 75% | 3301 fps | 95% |
| IMR 4350 | <<locked>> | 94% | 51,053 psi | 79% | 3379 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 88% | 48,994 psi | 75% | 3327 fps | 95% |
| IMR 4831 | <<locked>> | 88% | 40,364 psi | 62% | 3189 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 44,976 psi | 69% | 3304 fps | 98.1% |
| IMR 8208 XBR | <<locked>> | 80% | 50,343 psi | 77% | 3366 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 48,153 psi | 74% | 3330 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,790 psi | 74% | 3278 fps | 98.7% |
| Lovex S062 | <<locked>> | 80% | 43,105 psi | 66% | 3212 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 45,890 psi | 71% | 3264 fps | 95.8% |
| Lovex S070 | <<locked>> | 92% | 49,821 psi | 77% | 3360 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 47,253 psi | 73% | 3297 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 47,732 psi | 73% | 3307 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,294 psi | 67% | 3251 fps | 97.7% |
| Norma URP | <<locked>> | 88% | 41,930 psi | 65% | 3248 fps | 95.9% |
| Ramshot Big Game | <<locked>> | 80% | 43,323 psi | 67% | 3264 fps | 97.6% |
| Ramshot Hunter | <<locked>> | 92% | 46,978 psi | 72% | 3363 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 50,604 psi | 78% | 3363 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,357 psi | 77% | 3389 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 80% | 54,418 psi | 84% | 3419 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,890 psi | 41% | 2073 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 48,008 psi | 74% | 3310 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,818 psi | 72% | 3396 fps | 97.9% |
| ReloadSwiss RS 60 | 73.5 gr | 80% | 37,898 psi | 58% | 3219 fps | 98.9% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 42,047 psi | 65% | 3268 fps | 95.7% |
| ReloadSwiss RS 70 | 84 gr | 90% | 44,556 psi | 69% | 3350 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 51,169 psi | 79% | 3353 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,918 psi | 69% | 3235 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 38,537 psi | 59% | 3127 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 92% | 53,664 psi | 83% | 3419 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 45,890 psi | 71% | 3264 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,153 psi | 74% | 3330 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,105 psi | 66% | 3212 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 92% | 49,821 psi | 77% | 3360 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,537 psi | 61% | 3176 fps | 96.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,066 psi | 75% | 3333 fps | 97.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,905 psi | 72% | 3310 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,254 psi | 74% | 3248 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,408 psi | 62% | 3074 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 48,660 psi | 75% | 3264 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 48,080 psi | 74% | 3245 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,950 psi | 75% | 3333 fps | 98.8% |
| Somchem S355 | <<locked>> | 80% | 39,102 psi | 60% | 3130 fps | 97% |
| Somchem S365 | <<locked>> | 82% | 30,661 psi | 47% | 2969 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 54,288 psi | 84% | 3327 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,631 psi | 75% | 3241 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,614 psi | 69% | 3222 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,281 psi | 70% | 3228 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,333 psi | 57% | 3054 fps | 97.9% |
| Vihtavuori N160 | <<locked>> | 86% | 40,886 psi | 63% | 3186 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 50,705 psi | 78% | 3363 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 43,700 psi | 67% | 3205 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 40,350 psi | 62% | 3179 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 92% | 37,202 psi | 57% | 3163 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,214 psi | 51% | 2949 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 50,908 psi | 78% | 3415 fps | 99.9% |
| Winchester 760 | <<locked>> | 92% | 51,445 psi | 79% | 3455 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 96% | 34,592 psi | 53% | 3169 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,644 psi | 72% | 3314 fps | 98.9% |
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 109 powders for .300 PRC loaded with the .308 | 115gr | Lehigh Defense Controlled Chaos. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,655 fps; across all powders the maximum-charge window runs from 2,254 fps to 3,655 fps. Accurate 3100 gives the best case fill at 100 %, and 109 of the 109 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 115.0 gr projectile in 0.308" calls for a 1:13.0 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, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .300 PRC with the .308 | 115gr | Lehigh Defense Controlled Chaos 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.