Load Specifications
Load data in caliber .300 PRC with .308 | 168gr | Barnes TAC-TX BT bullet and 86 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Alliant Reloder-26 and Norma MRP.
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 2700 | <<locked>> | 82% | 57,421 psi | 88% | 2972 fps | 99.3% |
| Accurate 3100 | <<locked>> | 98% | 57,014 psi | 88% | 3028 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 56,739 psi | 87% | 2943 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 58,581 psi | 90% | 3068 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 55,666 psi | 86% | 3117 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 84% | 56,724 psi | 87% | 2986 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,941 psi | 86% | 3068 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 98% | 57,537 psi | 89% | 3130 fps | 98.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,363 psi | 61% | 2818 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 57,740 psi | 89% | 3005 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 57,899 psi | 89% | 3031 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,811 psi | 86% | 3074 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 57,217 psi | 88% | 3094 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 55,506 psi | 85% | 3054 fps | 98.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 57,029 psi | 88% | 3117 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 57,783 psi | 89% | 3091 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,908 psi | 77% | 3031 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 58,755 psi | 90% | 3189 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,695 psi | 86% | 3097 fps | 98.8% |
| Bofors RP3 | <<locked>> | 82% | 55,114 psi | 85% | 2969 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,818 psi | 70% | 2946 fps | 96.2% |
| Bofors RP5 | <<locked>> | 98% | 57,029 psi | 88% | 3117 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 57,841 psi | 89% | 3015 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,269 psi | 76% | 2972 fps | 97.3% |
| Hodgdon H380 | <<locked>> | 82% | 55,274 psi | 85% | 2989 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 56,985 psi | 88% | 3071 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 86% | 56,188 psi | 86% | 3028 fps | 99% |
| Hodgdon H4831 | <<locked>> | 96% | 57,580 psi | 89% | 3064 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 56,420 psi | 87% | 3048 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 56,159 psi | 86% | 2995 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,805 psi | 75% | 3077 fps | 98.5% |
| Hodgdon Superformance | <<locked>> | 88% | 57,696 psi | 89% | 3110 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,709 psi | 56% | 1900 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,188 psi | 86% | 2966 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 58,552 psi | 90% | 3009 fps | 99.7% |
| IMR 4350 | <<locked>> | 90% | 55,825 psi | 86% | 2999 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,941 psi | 86% | 2989 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 55,201 psi | 85% | 3005 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 58,624 psi | 90% | 3048 fps | 97.8% |
| IMR 7828 SSC | <<locked>> | 98% | 54,897 psi | 84% | 3097 fps | 97.7% |
| Lovex S062 | <<locked>> | 82% | 56,318 psi | 87% | 2956 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 56,275 psi | 87% | 2986 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 57,856 psi | 89% | 3035 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,473 psi | 78% | 2923 fps | 99.5% |
| Norma 203B | <<locked>> | 82% | 57,203 psi | 88% | 3015 fps | 100% |
| Norma 204 | <<locked>> | 90% | 56,797 psi | 87% | 3054 fps | 98.7% |
| Norma MRP | <<locked>> | 96% | 56,753 psi | 87% | 3143 fps | 99.7% |
| Norma URP | <<locked>> | 90% | 57,159 psi | 88% | 3054 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 58,523 psi | 90% | 3045 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,680 psi | 86% | 3120 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 55,985 psi | 86% | 3054 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,737 psi | 83% | 3048 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,333 psi | 57% | 1942 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,100 psi | 85% | 2972 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,623 psi | 87% | 3081 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,868 psi | 84% | 3035 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 57,217 psi | 88% | 3127 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,327 psi | 76% | 3077 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 82% | 58,131 psi | 89% | 2969 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 55,216 psi | 85% | 2966 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 57,319 psi | 88% | 3035 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 96% | 58,421 psi | 90% | 3100 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 88% | 57,841 psi | 89% | 3015 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,275 psi | 87% | 2986 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 56,318 psi | 87% | 2956 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 57,856 psi | 89% | 3035 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 57,203 psi | 88% | 3031 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,753 psi | 86% | 2844 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,796 psi | 86% | 2936 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 57,943 psi | 89% | 3094 fps | 99.1% |
| Somchem S355 | <<locked>> | 86% | 58,653 psi | 90% | 3015 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,477 psi | 85% | 2969 fps | 97% |
| Somchem S365 | <<locked>> | 92% | 57,188 psi | 88% | 3054 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,172 psi | 85% | 3012 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 86% | 56,449 psi | 87% | 2933 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,390 psi | 85% | 2992 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 58,653 psi | 90% | 3051 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 82% | 57,072 psi | 88% | 2933 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 58,262 psi | 90% | 3051 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 56,405 psi | 87% | 3068 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 56,768 psi | 87% | 3133 fps | 97.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,272 psi | 80% | 3038 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,056 psi | 85% | 2953 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 57,188 psi | 88% | 3074 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,911 psi | 84% | 3173 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,347 psi | 85% | 3005 fps | 98.6% |
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 2700 | <<locked>> | 80% | 53,664 psi | 83% | 2913 fps | 98.9% |
| Accurate 3100 | <<locked>> | 82% | 32,532 psi | 50% | 2543 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 53,171 psi | 82% | 2894 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,321 psi | 64% | 2769 fps | 99.2% |
| Accurate MAGPRO | 85.3 gr | 94% | 51,793 psi | 80% | 3048 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 80% | 50,038 psi | 77% | 2874 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 42,656 psi | 66% | 2815 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 92% | 46,702 psi | 72% | 2927 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 98% | 36,883 psi | 57% | 2749 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,908 psi | 78% | 2900 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 54,317 psi | 84% | 2976 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,972 psi | 61% | 2782 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,992 psi | 71% | 2910 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 42,482 psi | 65% | 2808 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 88% | 40,277 psi | 62% | 2799 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,298 psi | 45% | 2516 fps | 97.5% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,256 psi | 48% | 2589 fps | 95% |
| Alliant Reloder-26 | 73.4 gr | 80% | 31,691 psi | 49% | 2638 fps | 96.2% |
| Bofors RP15 | <<locked>> | 92% | 42,699 psi | 66% | 2851 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 51,372 psi | 79% | 2910 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 42,728 psi | 66% | 2881 fps | 95.2% |
| Bofors RP5 | <<locked>> | 88% | 40,277 psi | 62% | 2799 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 44,773 psi | 69% | 2785 fps | 97.5% |
| Hodgdon H1000 | <<locked>> | 96% | 42,902 psi | 66% | 2841 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 51,735 psi | 80% | 2930 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 43,395 psi | 67% | 2825 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 80% | 46,108 psi | 71% | 2844 fps | 97.1% |
| Hodgdon H4831 | <<locked>> | 92% | 50,082 psi | 77% | 2936 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 92% | 49,095 psi | 76% | 2920 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,608 psi | 58% | 2667 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 94% | 39,900 psi | 61% | 2867 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 42,540 psi | 65% | 2838 fps | 97.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,354 psi | 42% | 1696 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,663 psi | 81% | 2910 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 54,940 psi | 85% | 2949 fps | 99.5% |
| IMR 4350 | <<locked>> | 80% | 40,422 psi | 62% | 2707 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,398 psi | 71% | 2818 fps | 98.2% |
| IMR 4831 | <<locked>> | 80% | 39,639 psi | 61% | 2720 fps | 99% |
| IMR 4955 Enduron | <<locked>> | 90% | 48,414 psi | 74% | 2871 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 92% | 44,715 psi | 69% | 2900 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 52,808 psi | 81% | 2904 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,700 psi | 67% | 2762 fps | 98.8% |
| Lovex S070 | <<locked>> | 80% | 42,047 psi | 65% | 2746 fps | 97.6% |
| Lovex S071 | <<locked>> | 88% | 33,881 psi | 52% | 2579 fps | 95.7% |
| Norma 203B | <<locked>> | 80% | 53,635 psi | 83% | 2959 fps | 100% |
| Norma 204 | <<locked>> | 82% | 43,134 psi | 66% | 2802 fps | 95.8% |
| Norma MRP | 74.8 gr | 84% | 36,709 psi | 56% | 2743 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 41,031 psi | 63% | 2766 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 80% | 54,665 psi | 84% | 2989 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 44,599 psi | 69% | 2910 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 39,813 psi | 61% | 2749 fps | 97.6% |
| Ramshot Magnum | <<locked>> | 92% | 39,624 psi | 61% | 2772 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,963 psi | 43% | 1739 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,503 psi | 79% | 2913 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,849 psi | 75% | 2963 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,394 psi | 64% | 2792 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,943 psi | 61% | 2805 fps | 98.7% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,666 psi | 56% | 2776 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 54,708 psi | 84% | 2917 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 48,472 psi | 75% | 2858 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 44,222 psi | 68% | 2795 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 86% | 41,727 psi | 64% | 2792 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 44,773 psi | 69% | 2785 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,700 psi | 67% | 2762 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 52,808 psi | 81% | 2904 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,047 psi | 65% | 2746 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,879 psi | 77% | 2913 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,255 psi | 76% | 2753 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,685 psi | 66% | 2703 fps | 97.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 41,394 psi | 64% | 2785 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 48,472 psi | 75% | 2854 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 48,312 psi | 74% | 2844 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 37,579 psi | 58% | 2717 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,898 psi | 57% | 2651 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 46,485 psi | 72% | 2779 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,395 psi | 65% | 2762 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 88% | 39,001 psi | 60% | 2694 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 53,577 psi | 82% | 2884 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,814 psi | 64% | 2762 fps | 99.1% |
| Vihtavuori N555 | <<locked>> | 80% | 32,779 psi | 50% | 2598 fps | 97.6% |
| Vihtavuori N560 | <<locked>> | 90% | 45,977 psi | 71% | 2936 fps | 95% |
| Vihtavuori N565 | <<locked>> | 96% | 45,469 psi | 70% | 2910 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,553 psi | 64% | 2730 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,584 psi | 67% | 2828 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,831 psi | 40% | 2490 fps | 96.6% |
| Winchester Supreme 780 | <<locked>> | 88% | 41,611 psi | 64% | 2756 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 86 powders for .300 PRC loaded with the .308 | 168gr | Barnes TAC-TX BT. Alliant Reloder-26 delivers the highest muzzle velocity at 3,189 fps; across all powders the maximum-charge window runs from 1,900 fps to 3,189 fps. ADI AR 2225 gives the best case fill at 100 %, and 86 of the 86 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 168.0 gr projectile in 0.308" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-23, 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. Accurate MAGPRO, Alliant Reloder-26, Norma MRP rank at the top here: for .300 PRC with the .308 | 168gr | Barnes TAC-TX 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.