Load Specifications
Load data in caliber .300 PRC with .308 | 88gr | Inceptor SRR bullet and 83 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 52 and Alliant Power Pro 2000-MR.
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>> | 88% | 56,478 psi | 87% | 3783 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 55,245 psi | 85% | 3789 fps | 99.9% |
| Accurate 2495 | <<locked>> | 94% | 58,639 psi | 90% | 3842 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 57,812 psi | 89% | 3865 fps | 99.9% |
| Accurate 4064 | <<locked>> | 96% | 58,595 psi | 90% | 3885 fps | 100% |
| Accurate LT-30 | <<locked>> | 82% | 55,492 psi | 85% | 3730 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 55,854 psi | 86% | 3757 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 90% | 56,188 psi | 86% | 3862 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 96% | 57,479 psi | 88% | 3855 fps | 97.8% |
| ADI AR 2219 | <<locked>> | 82% | 57,159 psi | 88% | 3868 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 55,143 psi | 85% | 3816 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 88% | 55,245 psi | 85% | 3822 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 56,550 psi | 87% | 3960 fps | 98.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 56,536 psi | 87% | 3983 fps | 97.6% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 56,884 psi | 88% | 3885 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 57,072 psi | 88% | 3875 fps | 99% |
| Alliant Reloder-10x | <<locked>> | 84% | 55,738 psi | 86% | 3806 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 57,783 psi | 89% | 3904 fps | 98% |
| Alliant Reloder-17 | <<locked>> | 98% | 55,230 psi | 85% | 3937 fps | 98.7% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 55,361 psi | 85% | 3694 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 56,768 psi | 87% | 3865 fps | 97.4% |
| Bofors RP3 | <<locked>> | 96% | 57,986 psi | 89% | 3891 fps | 99.2% |
| Hodgdon Benchmark | <<locked>> | 88% | 57,043 psi | 88% | 3812 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 88% | 54,752 psi | 84% | 3832 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 86% | 56,666 psi | 87% | 3950 fps | 97.8% |
| Hodgdon H322 | <<locked>> | 84% | 55,622 psi | 86% | 3842 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 57,377 psi | 88% | 3858 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 55,608 psi | 86% | 3832 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 90% | 56,710 psi | 87% | 3881 fps | 98.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,035 psi | 71% | 3642 fps | 96.6% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 56,376 psi | 87% | 3907 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,229 psi | 53% | 2526 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 58,450 psi | 90% | 3891 fps | 98.9% |
| IMR 3031 | <<locked>> | 90% | 55,985 psi | 86% | 3888 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 56,753 psi | 87% | 3839 fps | 97.9% |
| IMR 4198 | <<locked>> | 84% | 55,767 psi | 86% | 3776 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 55,608 psi | 86% | 3881 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 88% | 55,143 psi | 85% | 3816 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 84% | 55,390 psi | 85% | 3793 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 90% | 55,724 psi | 86% | 3835 fps | 99.8% |
| Lovex S060 | <<locked>> | 90% | 55,883 psi | 86% | 3783 fps | 98.2% |
| Lovex S062 | <<locked>> | 94% | 56,275 psi | 87% | 3835 fps | 99.2% |
| Norma 201 | <<locked>> | 92% | 58,276 psi | 90% | 3868 fps | 99.3% |
| Norma 202 | <<locked>> | 90% | 55,245 psi | 85% | 3819 fps | 99.9% |
| Norma 203B | <<locked>> | 94% | 56,913 psi | 88% | 3885 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 94% | 58,479 psi | 90% | 3917 fps | 98.5% |
| Ramshot Wild Boar | <<locked>> | 88% | 55,637 psi | 86% | 3839 fps | 98.1% |
| Ramshot X-Terminator | <<locked>> | 86% | 56,710 psi | 87% | 3806 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,505 psi | 53% | 2582 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 58,349 psi | 90% | 3875 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 58,407 psi | 90% | 3986 fps | 98% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 54,795 psi | 84% | 3953 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 90% | 58,581 psi | 90% | 3868 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 58,595 psi | 90% | 3862 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 98% | 57,783 psi | 89% | 3881 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 90% | 55,724 psi | 86% | 3835 fps | 99.8% |
| Shooters World Precision | <<locked>> | 94% | 56,275 psi | 87% | 3835 fps | 99.2% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 58,392 psi | 90% | 3829 fps | 99.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 57,812 psi | 89% | 3507 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 57,653 psi | 89% | 3868 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 56,318 psi | 87% | 3885 fps | 98.2% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 56,869 psi | 87% | 3839 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 58,349 psi | 90% | 3848 fps | 96.8% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 58,639 psi | 90% | 3888 fps | 98.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 56,318 psi | 87% | 3757 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 56,898 psi | 88% | 3743 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 56,840 psi | 87% | 3852 fps | 99.4% |
| Somchem S335 | <<locked>> | 90% | 55,796 psi | 86% | 3747 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 58,001 psi | 89% | 3845 fps | 98.4% |
| Somchem S355 | <<locked>> | 98% | 57,972 psi | 89% | 3878 fps | 98.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,411 psi | 70% | 3701 fps | 97.9% |
| Vihtavuori N130 | <<locked>> | 86% | 55,912 psi | 86% | 3737 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 56,376 psi | 87% | 3747 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 58,001 psi | 89% | 3839 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 56,014 psi | 86% | 3789 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 56,391 psi | 87% | 3799 fps | 99.5% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 53,780 psi | 83% | 3793 fps | 96.4% |
| Vihtavuori N530 | <<locked>> | 88% | 55,941 psi | 86% | 3819 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 94% | 58,378 psi | 90% | 3839 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 52,953 psi | 81% | 3786 fps | 96.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 55,376 psi | 85% | 3773 fps | 98.9% |
| Winchester 748 | <<locked>> | 88% | 55,782 psi | 86% | 3871 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 90% | 54,708 psi | 84% | 3822 fps | 98.5% |
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% | 43,323 psi | 67% | 3524 fps | 99.9% |
| Accurate 2460 | <<locked>> | 80% | 47,935 psi | 74% | 3645 fps | 99.3% |
| Accurate 2495 | <<locked>> | 80% | 35,665 psi | 55% | 3356 fps | 99.1% |
| Accurate 2520 | <<locked>> | 80% | 43,076 psi | 66% | 3560 fps | 98.1% |
| Accurate 4064 | <<locked>> | 80% | 33,721 psi | 52% | 3314 fps | 96.2% |
| Accurate LT-30 | <<locked>> | 80% | 52,069 psi | 80% | 3665 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 52,417 psi | 81% | 3691 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 84% | 46,021 psi | 71% | 3645 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 90% | 47,297 psi | 73% | 3642 fps | 95.5% |
| ADI AR 2219 | <<locked>> | 80% | 53,084 psi | 82% | 3796 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,206 psi | 65% | 3524 fps | 96.1% |
| Alliant AR-Comp | <<locked>> | 80% | 41,452 psi | 64% | 3556 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 49,037 psi | 75% | 3799 fps | 97.1% |
| Alliant Power Pro 2000-MR | 83.3 gr | 88% | 48,805 psi | 75% | 3806 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 43,482 psi | 67% | 3589 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 40,843 psi | 63% | 3517 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 49,052 psi | 75% | 3681 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 47,282 psi | 73% | 3678 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 92% | 44,425 psi | 68% | 3684 fps | 96% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,808 psi | 80% | 3632 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 49,095 psi | 76% | 3707 fps | 95.6% |
| Bofors RP3 | <<locked>> | 86% | 40,611 psi | 62% | 3510 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,092 psi | 68% | 3533 fps | 97.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,828 psi | 63% | 3517 fps | 96.4% |
| Hodgdon CFE223 | <<locked>> | 82% | 48,820 psi | 75% | 3783 fps | 96% |
| Hodgdon H322 | <<locked>> | 80% | 48,298 psi | 74% | 3698 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 80% | 49,690 psi | 76% | 3714 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 92% | 51,692 psi | 80% | 3750 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 82% | 43,337 psi | 67% | 3583 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 43,018 psi | 66% | 3570 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 42,293 psi | 65% | 3593 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,367 psi | 39% | 2277 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 41,669 psi | 64% | 3520 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 39,378 psi | 61% | 3530 fps | 99.1% |
| IMR 4064 | <<locked>> | 88% | 46,528 psi | 72% | 3619 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 49,429 psi | 76% | 3658 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 45,208 psi | 70% | 3648 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 42,206 psi | 65% | 3524 fps | 96.1% |
| Lovex D073.5 | <<locked>> | 80% | 47,848 psi | 74% | 3638 fps | 98.5% |
| Lovex D073.6 | <<locked>> | 80% | 38,783 psi | 60% | 3458 fps | 96.9% |
| Lovex S060 | <<locked>> | 82% | 43,250 psi | 67% | 3507 fps | 95.2% |
| Lovex S062 | <<locked>> | 84% | 40,364 psi | 62% | 3478 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 39,131 psi | 60% | 3438 fps | 95.2% |
| Norma 202 | <<locked>> | 80% | 39,262 psi | 60% | 3461 fps | 97.7% |
| Norma 203B | <<locked>> | 86% | 43,366 psi | 67% | 3586 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 86% | 43,627 psi | 67% | 3596 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 82% | 44,889 psi | 69% | 3606 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,108 psi | 71% | 3583 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,411 psi | 39% | 2323 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,587 psi | 73% | 3658 fps | 98.7% |
| ReloadSwiss RS 52 | 78.9 gr | 86% | 46,731 psi | 72% | 3740 fps | 95.3% |
| ReloadSwiss RS 60 | 80.2 gr | 86% | 38,203 psi | 59% | 3530 fps | 96.3% |
| Rottweil R 901 | <<locked>> | 80% | 42,482 psi | 65% | 3527 fps | 98.2% |
| Rottweil R 902 | <<locked>> | 82% | 39,653 psi | 61% | 3442 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 88% | 40,640 psi | 63% | 3501 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,783 psi | 60% | 3458 fps | 96.9% |
| Shooters World Precision | <<locked>> | 84% | 40,364 psi | 62% | 3478 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 50,531 psi | 78% | 3678 fps | 98% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 54,723 psi | 84% | 3458 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 53,722 psi | 83% | 3796 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 45,556 psi | 70% | 3652 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 49,792 psi | 77% | 3704 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 54,259 psi | 83% | 3770 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 44,686 psi | 69% | 3593 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,596 psi | 62% | 3425 fps | 98.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,388 psi | 51% | 3222 fps | 97% |
| Somchem S321 | <<locked>> | 80% | 45,890 psi | 71% | 3619 fps | 97.5% |
| Somchem S335 | <<locked>> | 80% | 40,306 psi | 62% | 3422 fps | 98.7% |
| Somchem S341 | <<locked>> | 82% | 43,294 psi | 67% | 3533 fps | 95% |
| Somchem S355 | <<locked>> | 88% | 41,495 psi | 64% | 3517 fps | 95.1% |
| Somchem S365 | <<locked>> | 96% | 39,450 psi | 61% | 3543 fps | 96% |
| Vihtavuori N130 | <<locked>> | 80% | 46,035 psi | 71% | 3550 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,785 psi | 63% | 3435 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 80% | 36,027 psi | 55% | 3376 fps | 99.1% |
| Vihtavuori N140 | <<locked>> | 80% | 37,188 psi | 57% | 3373 fps | 97.5% |
| Vihtavuori N150 | <<locked>> | 86% | 37,101 psi | 57% | 3366 fps | 95.2% |
| Vihtavuori N160 | <<locked>> | 98% | 50,096 psi | 77% | 3714 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 42,264 psi | 65% | 3517 fps | 96.3% |
| Vihtavuori N540 | <<locked>> | 80% | 35,940 psi | 55% | 3340 fps | 96.6% |
| Vihtavuori N550 | <<locked>> | 98% | 49,400 psi | 76% | 3711 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 41,597 psi | 64% | 3465 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 41,582 psi | 64% | 3556 fps | 96.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 41,046 psi | 63% | 3510 fps | 95% |
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 108 powders for .300 PRC loaded with the .308 | 88gr | Inceptor SRR. ReloadSwiss RS 52 delivers the highest muzzle velocity at 3,986 fps; across all powders the maximum-charge window runs from 2,526 fps to 3,986 fps. Accurate 4350 gives the best case fill at 100 %, and 108 of the 108 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 88.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Bofors RP7 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, ReloadSwiss RS 52, Alliant Power Pro 2000-MR rank at the top here: for .300 PRC with the .308 | 88gr | Inceptor SRR they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Bofors RP7, Hodgdon H414 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.