Load Specifications
Load data in caliber .300 PRC with .308 | 190gr | Barnes LRX BT bullet and 84 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Accurate MAGPRO and Ramshot Grand.
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 3100 | <<locked>> | 96% | 55,506 psi | 85% | 2838 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 57,116 psi | 88% | 2871 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 57,290 psi | 88% | 2992 fps | 99% |
| Accurate MAGPRO | <<locked>> | 96% | 58,305 psi | 90% | 2995 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 84% | 58,682 psi | 90% | 2835 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 58,349 psi | 90% | 2933 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 96% | 55,767 psi | 86% | 2933 fps | 98.6% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 46,644 psi | 72% | 2766 fps | 97.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,278 psi | 64% | 2723 fps | 98.7% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 58,421 psi | 90% | 2930 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 58,421 psi | 90% | 2930 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 56,318 psi | 87% | 2805 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 58,204 psi | 90% | 2927 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 55,651 psi | 86% | 2890 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 57,653 psi | 89% | 2920 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 96% | 55,463 psi | 85% | 2927 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 98% | 56,623 psi | 87% | 2897 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 52,228 psi | 80% | 2904 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 57,246 psi | 88% | 2992 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 98% | 57,856 psi | 89% | 2894 fps | 96.4% |
| Bofors RP15ᴾ | <<locked>> | 100% | 58,363 psi | 90% | 2969 fps | 99.6% |
| Bofors RP3 | <<locked>> | 82% | 57,217 psi | 88% | 2822 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 48,051 psi | 74% | 2831 fps | 97.8% |
| Bofors RP5 | <<locked>> | 96% | 55,463 psi | 85% | 2927 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 56,260 psi | 87% | 2822 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 51,343 psi | 79% | 2858 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 82% | 57,348 psi | 88% | 2844 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 55,376 psi | 85% | 2874 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 86% | 58,436 psi | 90% | 2890 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 94% | 55,883 psi | 86% | 2874 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 96% | 58,508 psi | 90% | 2913 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 58,407 psi | 90% | 2848 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,242 psi | 79% | 2966 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 86% | 55,941 psi | 86% | 2913 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,912 psi | 57% | 1772 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 58,001 psi | 89% | 2815 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 57,798 psi | 89% | 2861 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 86% | 57,986 psi | 89% | 2848 fps | 99.9% |
| IMR 4831 | <<locked>> | 90% | 57,609 psi | 89% | 2864 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 57,087 psi | 88% | 2858 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 98% | 57,522 psi | 88% | 2972 fps | 99% |
| Lovex S062 | <<locked>> | 82% | 58,392 psi | 90% | 2805 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 58,320 psi | 90% | 2841 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 56,217 psi | 86% | 2838 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,765 psi | 81% | 2799 fps | 100% |
| Norma 204 | <<locked>> | 88% | 55,114 psi | 85% | 2861 fps | 99.2% |
| Norma 217ᴾ | <<locked>> | 100% | 36,593 psi | 56% | 2638 fps | 96.6% |
| Norma MRP | <<locked>> | 94% | 55,434 psi | 85% | 2949 fps | 99.9% |
| Norma URP | <<locked>> | 88% | 55,593 psi | 86% | 2854 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 58,363 psi | 90% | 2992 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 90% | 58,276 psi | 90% | 2917 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 56,333 psi | 87% | 2923 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,637 psi | 58% | 1814 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 57,014 psi | 88% | 2831 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 55,187 psi | 85% | 2877 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 57,246 psi | 88% | 2897 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 55,782 psi | 86% | 2930 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 51,619 psi | 79% | 2963 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 57,348 psi | 88% | 2818 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 55,825 psi | 86% | 2844 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 94% | 57,014 psi | 88% | 2907 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 86% | 56,260 psi | 87% | 2822 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 88% | 58,320 psi | 90% | 2841 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 58,392 psi | 90% | 2805 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 56,217 psi | 86% | 2838 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 55,405 psi | 85% | 2828 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 57,653 psi | 89% | 2697 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 57,740 psi | 89% | 2799 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 56,565 psi | 87% | 2900 fps | 99.5% |
| Somchem S355 | <<locked>> | 84% | 57,130 psi | 88% | 2815 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 57,377 psi | 88% | 2841 fps | 98.3% |
| Somchem S365 | <<locked>> | 90% | 55,825 psi | 86% | 2858 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 57,464 psi | 88% | 2877 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 86% | 58,421 psi | 90% | 2785 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 57,609 psi | 89% | 2848 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 57,014 psi | 88% | 2858 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 88% | 56,782 psi | 87% | 2854 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 55,158 psi | 85% | 2874 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 55,390 psi | 85% | 2946 fps | 98.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 54,679 psi | 84% | 2920 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 57,232 psi | 88% | 2808 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 55,593 psi | 86% | 2877 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 58,233 psi | 90% | 3035 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 57,754 psi | 89% | 2877 fps | 99.5% |
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 3100 | <<locked>> | 80% | 31,821 psi | 49% | 2388 fps | 96.2% |
| Accurate 4350 | <<locked>> | 80% | 43,221 psi | 66% | 2648 fps | 99.9% |
| Accurate High Country | <<locked>> | 84% | 40,045 psi | 62% | 2671 fps | 95.1% |
| Accurate MAGPRO | 77.4 gr | 90% | 46,920 psi | 72% | 2799 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 51,706 psi | 80% | 2733 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 38,885 psi | 60% | 2582 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 88% | 42,482 psi | 65% | 2687 fps | 95.6% |
| ADI AR 2217 | <<locked>> | 96% | 40,567 psi | 62% | 2641 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 94% | 33,837 psi | 52% | 2536 fps | 95.9% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 36,593 psi | 56% | 2523 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 36,593 psi | 56% | 2523 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,837 psi | 81% | 2756 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,872 psi | 64% | 2661 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,225 psi | 74% | 2779 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 38,914 psi | 60% | 2579 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 84% | 36,782 psi | 57% | 2569 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,748 psi | 47% | 2418 fps | 99% |
| Alliant Reloder-25 | <<locked>> | 82% | 28,689 psi | 44% | 2379 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,431 psi | 51% | 2546 fps | 98.2% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 54,346 psi | 84% | 2838 fps | 95.6% |
| Bofors RP15 | <<locked>> | 86% | 36,463 psi | 56% | 2559 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 53,388 psi | 82% | 2766 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 39,088 psi | 60% | 2654 fps | 95.3% |
| Bofors RP5 | <<locked>> | 84% | 36,782 psi | 57% | 2569 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 46,398 psi | 71% | 2657 fps | 98.7% |
| Hodgdon H1000 | <<locked>> | 92% | 38,972 psi | 60% | 2608 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 53,766 psi | 83% | 2792 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 45,179 psi | 70% | 2700 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 80% | 47,877 psi | 74% | 2717 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 88% | 45,556 psi | 70% | 2697 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 88% | 44,585 psi | 69% | 2677 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,247 psi | 60% | 2546 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 36,492 psi | 56% | 2638 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 44,614 psi | 69% | 2723 fps | 98.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,528 psi | 42% | 1581 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 54,418 psi | 84% | 2766 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,076 psi | 65% | 2592 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,066 psi | 74% | 2687 fps | 99.2% |
| IMR 4831 | <<locked>> | 80% | 41,321 psi | 64% | 2598 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 86% | 44,193 psi | 68% | 2635 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 88% | 40,640 psi | 63% | 2661 fps | 95% |
| Lovex S062 | <<locked>> | 80% | 54,824 psi | 84% | 2756 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 45,310 psi | 70% | 2635 fps | 99.6% |
| Lovex S070 | <<locked>> | 80% | 43,584 psi | 67% | 2621 fps | 98.7% |
| Lovex S071 | <<locked>> | 82% | 29,283 psi | 45% | 2320 fps | 95% |
| Norma 204 | <<locked>> | 80% | 41,959 psi | 65% | 2625 fps | 96.7% |
| Norma 217 | <<locked>> | 98% | 34,200 psi | 53% | 2575 fps | 95.5% |
| Norma MRP | <<locked>> | 80% | 33,489 psi | 52% | 2516 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 42,699 psi | 66% | 2641 fps | 99.8% |
| Ramshot Grand | 73.7 gr | 88% | 40,364 psi | 62% | 2671 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 41,698 psi | 64% | 2635 fps | 98.9% |
| Ramshot Magnum | <<locked>> | 88% | 35,868 psi | 55% | 2546 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,065 psi | 43% | 1617 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 53,359 psi | 82% | 2776 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 51,271 psi | 79% | 2822 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,236 psi | 67% | 2667 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,742 psi | 64% | 2687 fps | 99.6% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 33,228 psi | 51% | 2549 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 50,270 psi | 77% | 2717 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 40,277 psi | 62% | 2562 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 82% | 38,072 psi | 59% | 2559 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 46,398 psi | 71% | 2657 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,310 psi | 70% | 2635 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 54,824 psi | 84% | 2756 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 43,584 psi | 67% | 2621 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,982 psi | 80% | 2779 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,836 psi | 78% | 2605 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,411 psi | 68% | 2582 fps | 98.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 37,739 psi | 58% | 2556 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 50,256 psi | 77% | 2713 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 43,845 psi | 67% | 2612 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 39,581 psi | 61% | 2598 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,940 psi | 55% | 2484 fps | 96% |
| Vihtavuori N150 | <<locked>> | 80% | 48,124 psi | 74% | 2638 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,135 psi | 68% | 2638 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 35,679 psi | 55% | 2474 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 43,627 psi | 67% | 2641 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 34,534 psi | 53% | 2497 fps | 99% |
| Vihtavuori N560 | 74.3 gr | 88% | 44,788 psi | 69% | 2756 fps | 95.9% |
| Vihtavuori N565 | <<locked>> | 92% | 41,495 psi | 64% | 2674 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,352 psi | 67% | 2602 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,382 psi | 70% | 2703 fps | 98.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,209 psi | 42% | 2421 fps | 98.9% |
| Winchester Supreme 780 | <<locked>> | 84% | 37,768 psi | 58% | 2526 fps | 95.6% |
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 84 powders for .300 PRC loaded with the .308 | 190gr | Barnes LRX BT. Winchester StaBALL HD delivers the highest muzzle velocity at 3,035 fps; across all powders the maximum-charge window runs from 1,772 fps to 3,035 fps. ADI AR 2217 gives the best case fill at 100 %, and 84 of the 84 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 190.0 gr projectile in 0.308" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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. Vihtavuori N560, Accurate MAGPRO, Ramshot Grand rank at the top here: for .300 PRC with the .308 | 190gr | Barnes LRX BT 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.