Load Specifications
Load data in caliber .300 PRC with .310 | 108gr | Barnes RRLP bullet and 91 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Power Pro 2000-MR and ReloadSwiss RS 70.
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% | 55,854 psi | 86% | 3478 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 58,160 psi | 89% | 3553 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 55,013 psi | 85% | 3491 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 56,753 psi | 87% | 3563 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 58,639 psi | 90% | 3596 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 55,564 psi | 85% | 3609 fps | 98.4% |
| ADI AR 2206H | <<locked>> | 88% | 58,784 psi | 90% | 3632 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 92% | 56,289 psi | 87% | 3563 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 86% | 57,595 psi | 89% | 3579 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 86% | 58,610 psi | 90% | 3566 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 55,158 psi | 85% | 3691 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 56,637 psi | 87% | 3593 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 82% | 58,523 psi | 90% | 3543 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 56,956 psi | 88% | 3615 fps | 99.1% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 56,463 psi | 87% | 3678 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 96% | 58,291 psi | 90% | 3727 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,669 psi | 63% | 3323 fps | 96.8% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 55,317 psi | 85% | 3570 fps | 98.5% |
| Bofors RP3 | <<locked>> | 92% | 57,493 psi | 88% | 3609 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 55,666 psi | 86% | 3504 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 86% | 57,580 psi | 89% | 3606 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 55,535 psi | 85% | 3652 fps | 98.9% |
| Hodgdon H322 | <<locked>> | 82% | 58,117 psi | 89% | 3586 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 58,581 psi | 90% | 3622 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 98% | 58,523 psi | 90% | 3665 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 86% | 55,709 psi | 86% | 3583 fps | 99.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 52,663 psi | 81% | 3527 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 55,608 psi | 86% | 3615 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,230 psi | 54% | 2306 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 57,145 psi | 88% | 3589 fps | 99.6% |
| IMR 3031 | <<locked>> | 86% | 55,521 psi | 85% | 3579 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 55,811 psi | 86% | 3547 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 88% | 55,811 psi | 86% | 3514 fps | 95.9% |
| IMR 4198 | <<locked>> | 82% | 58,015 psi | 89% | 3497 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,159 psi | 86% | 3599 fps | 98.6% |
| IMR 4895 | <<locked>> | 90% | 58,436 psi | 90% | 3652 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 86% | 57,595 psi | 89% | 3579 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 82% | 58,189 psi | 90% | 3563 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 55,274 psi | 85% | 3543 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 58,073 psi | 89% | 3553 fps | 99.5% |
| Lovex S062 | <<locked>> | 90% | 55,521 psi | 85% | 3543 fps | 99.8% |
| Lovex S065 | <<locked>> | 96% | 55,274 psi | 85% | 3527 fps | 97.2% |
| Lovex S070 | <<locked>> | 98% | 56,405 psi | 87% | 3566 fps | 96.3% |
| Norma 201 | <<locked>> | 88% | 57,406 psi | 88% | 3573 fps | 99.9% |
| Norma 202 | <<locked>> | 88% | 58,059 psi | 89% | 3576 fps | 100% |
| Norma 203B | <<locked>> | 90% | 56,202 psi | 86% | 3599 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 58,189 psi | 90% | 3661 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 90% | 57,421 psi | 88% | 3625 fps | 99.4% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 57,174 psi | 88% | 3642 fps | 97.2% |
| Ramshot TAC | <<locked>> | 86% | 58,465 psi | 90% | 3586 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 86% | 58,131 psi | 89% | 3615 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 84% | 58,653 psi | 90% | 3573 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,737 psi | 55% | 2359 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 57,000 psi | 88% | 3560 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 58,711 psi | 90% | 3593 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 57,798 psi | 89% | 3698 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 57,812 psi | 89% | 3734 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 55,477 psi | 85% | 3622 fps | 98.2% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,100 psi | 85% | 3652 fps | 97.9% |
| Rottweil R 901 | <<locked>> | 86% | 58,030 psi | 89% | 3560 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 57,986 psi | 89% | 3570 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 94% | 57,319 psi | 88% | 3599 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,274 psi | 85% | 3527 fps | 97.2% |
| Shooters World Match Rifle | <<locked>> | 86% | 55,274 psi | 85% | 3543 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 55,521 psi | 85% | 3543 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 98% | 56,405 psi | 87% | 3566 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 55,506 psi | 85% | 3599 fps | 99.2% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 56,913 psi | 88% | 3560 fps | 98.1% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 57,450 psi | 88% | 3593 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 58,697 psi | 90% | 3510 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 55,825 psi | 86% | 3445 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 55,782 psi | 86% | 3471 fps | 95.9% |
| Somchem S321 | <<locked>> | 82% | 55,448 psi | 85% | 3547 fps | 99.9% |
| Somchem S335 | <<locked>> | 88% | 58,247 psi | 90% | 3501 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 56,391 psi | 87% | 3550 fps | 99.3% |
| Somchem S355 | <<locked>> | 94% | 57,392 psi | 88% | 3593 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 52,634 psi | 81% | 3596 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 84% | 58,233 psi | 90% | 3474 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 55,390 psi | 85% | 3438 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 57,522 psi | 88% | 3537 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 58,755 psi | 90% | 3550 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 55,492 psi | 85% | 3510 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 98% | 57,014 psi | 88% | 3593 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 86% | 58,320 psi | 90% | 3579 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 90% | 57,072 psi | 88% | 3537 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,144 psi | 86% | 3589 fps | 98.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,614 psi | 69% | 3422 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 57,827 psi | 89% | 3566 fps | 99.9% |
| Winchester 748 | <<locked>> | 86% | 58,726 psi | 90% | 3635 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 58,726 psi | 90% | 3668 fps | 96.6% |
| Winchester StaBALL Match | <<locked>> | 88% | 57,493 psi | 88% | 3602 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% | 49,153 psi | 76% | 3360 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 54,244 psi | 83% | 3488 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,047 psi | 65% | 3248 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,342 psi | 76% | 3428 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 39,697 psi | 61% | 3225 fps | 99.4% |
| Accurate 4350 | <<locked>> | 90% | 41,597 psi | 64% | 3310 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 45,498 psi | 70% | 3366 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 82% | 41,089 psi | 63% | 3235 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,529 psi | 73% | 3383 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 80% | 47,761 psi | 73% | 3389 fps | 100% |
| Alliant Power Pro 2000-MR | 73.1 gr | 80% | 41,437 psi | 64% | 3369 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,189 psi | 59% | 3192 fps | 96.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 55,042 psi | 85% | 3484 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,147 psi | 63% | 3274 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 92% | 43,627 psi | 67% | 3396 fps | 96% |
| Alliant Reloder-17 | <<locked>> | 84% | 38,145 psi | 59% | 3271 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 98% | 38,072 psi | 59% | 3255 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,962 psi | 69% | 3353 fps | 96.3% |
| Bofors RP3 | <<locked>> | 80% | 38,014 psi | 58% | 3192 fps | 96.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,081 psi | 76% | 3379 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,688 psi | 72% | 3396 fps | 99.2% |
| Hodgdon CFE223 | <<locked>> | 80% | 51,750 psi | 80% | 3576 fps | 98.3% |
| Hodgdon H322 | <<locked>> | 80% | 54,346 psi | 84% | 3520 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 44,657 psi | 69% | 3337 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 96% | 54,578 psi | 84% | 3593 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 45,905 psi | 71% | 3383 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 37,710 psi | 58% | 3192 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,945 psi | 65% | 3327 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,150 psi | 40% | 2070 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,903 psi | 68% | 3317 fps | 97.6% |
| IMR 3031 | <<locked>> | 80% | 45,368 psi | 70% | 3389 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,350 psi | 62% | 3212 fps | 95.6% |
| IMR 4166 Enduron | <<locked>> | 86% | 52,214 psi | 80% | 3445 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 54,737 psi | 84% | 3448 fps | 100% |
| IMR 4831 | <<locked>> | 92% | 42,714 psi | 66% | 3320 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 42,177 psi | 65% | 3314 fps | 96.7% |
| IMR 8208 XBR | <<locked>> | 80% | 47,529 psi | 73% | 3383 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 80% | 54,317 psi | 84% | 3497 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 44,701 psi | 69% | 3340 fps | 99.5% |
| Lovex S060 | <<locked>> | 80% | 45,252 psi | 70% | 3297 fps | 97.6% |
| Lovex S062 | <<locked>> | 80% | 40,393 psi | 62% | 3222 fps | 97.5% |
| Lovex S065 | <<locked>> | 92% | 48,617 psi | 75% | 3392 fps | 95.6% |
| Lovex S070 | <<locked>> | 96% | 52,866 psi | 81% | 3494 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 44,483 psi | 68% | 3314 fps | 98.4% |
| Norma 202 | <<locked>> | 80% | 44,715 psi | 69% | 3327 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 40,538 psi | 62% | 3258 fps | 96.2% |
| Norma URP | <<locked>> | 92% | 44,454 psi | 68% | 3379 fps | 95.9% |
| Ramshot Big Game | <<locked>> | 80% | 40,190 psi | 62% | 3261 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 96% | 49,966 psi | 77% | 3501 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 47,616 psi | 73% | 3369 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,326 psi | 73% | 3402 fps | 97.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,488 psi | 79% | 3442 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,527 psi | 41% | 2119 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 53,243 psi | 82% | 3494 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 51,547 psi | 79% | 3455 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,410 psi | 67% | 3396 fps | 96.2% |
| ReloadSwiss RS 60 | 72 gr | 80% | 35,302 psi | 54% | 3209 fps | 97.3% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 44,628 psi | 69% | 3402 fps | 95.7% |
| ReloadSwiss RS 70 | 85.9 gr | 94% | 47,718 psi | 73% | 3494 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 48,269 psi | 74% | 3383 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 42,250 psi | 65% | 3251 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 80% | 35,679 psi | 55% | 3120 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 92% | 48,617 psi | 75% | 3392 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,701 psi | 69% | 3340 fps | 99.5% |
| Shooters World Precision | <<locked>> | 80% | 40,393 psi | 62% | 3222 fps | 97.5% |
| Shooters World SW4350 | <<locked>> | 96% | 52,866 psi | 81% | 3494 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 39,450 psi | 61% | 3248 fps | 95.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,122 psi | 71% | 3343 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,048 psi | 68% | 3317 fps | 97.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,585 psi | 70% | 3271 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,971 psi | 58% | 3094 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 51,982 psi | 80% | 3399 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 51,822 psi | 80% | 3481 fps | 99.6% |
| Somchem S335 | <<locked>> | 80% | 45,411 psi | 70% | 3271 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,774 psi | 70% | 3340 fps | 97.6% |
| Somchem S355 | <<locked>> | 80% | 36,535 psi | 56% | 3133 fps | 95.3% |
| Somchem S365 | <<locked>> | 86% | 32,474 psi | 50% | 3097 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 51,387 psi | 79% | 3363 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,905 psi | 71% | 3271 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,597 psi | 64% | 3245 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,366 psi | 65% | 3245 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 34,751 psi | 53% | 3058 fps | 96.3% |
| Vihtavuori N160 | <<locked>> | 90% | 43,395 psi | 67% | 3317 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 47,659 psi | 73% | 3379 fps | 99% |
| Vihtavuori N540 | <<locked>> | 80% | 41,104 psi | 63% | 3225 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 90% | 42,888 psi | 66% | 3314 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 98% | 41,771 psi | 64% | 3353 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 35,592 psi | 55% | 3081 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 47,630 psi | 73% | 3428 fps | 99.5% |
| Winchester 760 | <<locked>> | 96% | 54,766 psi | 84% | 3596 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,642 psi | 67% | 3323 fps | 97.7% |
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 91 powders for .300 PRC loaded with the .310 | 108gr | Barnes RRLP. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,734 fps; across all powders the maximum-charge window runs from 2,306 fps to 3,734 fps. Alliant Reloder-16 gives the best case fill at 100 %, and 91 of the 91 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 108.0 gr projectile in 0.31" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-16, Alliant Reloder-23, Hodgdon Hybrid 100V 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 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 70 rank at the top here: for .300 PRC with the .310 | 108gr | Barnes RRLP 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.