Load Specifications
Load data in caliber .300 PRC with .308 | 165gr | Federal Trophy Bonded bullet and 87 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 and Alliant Reloder-26.
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% | 57,000 psi | 88% | 2982 fps | 99.1% |
| Accurate 3100 | <<locked>> | 98% | 56,724 psi | 87% | 3038 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 56,898 psi | 88% | 2963 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 58,610 psi | 90% | 3087 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 55,143 psi | 85% | 3123 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 84% | 56,376 psi | 87% | 2995 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,434 psi | 85% | 3074 fps | 98.4% |
| ADI AR 2213 | <<locked>> | 98% | 56,898 psi | 88% | 3133 fps | 97.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,436 psi | 61% | 2828 fps | 96.5% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 55,608 psi | 86% | 3071 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 57,696 psi | 89% | 3022 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 57,653 psi | 89% | 3045 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,405 psi | 85% | 3087 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 56,637 psi | 87% | 3104 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 58,566 psi | 90% | 3120 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 98% | 56,449 psi | 87% | 3127 fps | 98.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 57,377 psi | 88% | 3107 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,501 psi | 76% | 3038 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 96% | 58,073 psi | 89% | 3202 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,347 psi | 85% | 3107 fps | 98.5% |
| Bofors RP3 | <<locked>> | 84% | 58,798 psi | 90% | 3038 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 56,449 psi | 87% | 3127 fps | 98.8% |
| Bofors RP7 | <<locked>> | 88% | 57,711 psi | 89% | 3031 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,892 psi | 75% | 2979 fps | 96.8% |
| Hodgdon H380 | <<locked>> | 82% | 55,129 psi | 85% | 3002 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 56,536 psi | 87% | 3081 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 86% | 55,912 psi | 86% | 3038 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 96% | 56,971 psi | 88% | 3071 fps | 97.1% |
| Hodgdon H4831 SC | <<locked>> | 96% | 55,811 psi | 86% | 3051 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,709 psi | 86% | 3005 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,588 psi | 75% | 3087 fps | 98.2% |
| Hodgdon Superformance | <<locked>> | 88% | 57,246 psi | 88% | 3123 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,724 psi | 56% | 1906 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,912 psi | 86% | 2979 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 58,262 psi | 90% | 3018 fps | 99.6% |
| IMR 4350 | <<locked>> | 90% | 55,608 psi | 86% | 3012 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,651 psi | 86% | 2999 fps | 99.4% |
| IMR 4831 | <<locked>> | 92% | 58,813 psi | 90% | 3074 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 58,247 psi | 90% | 3058 fps | 97.5% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 58,407 psi | 90% | 3169 fps | 98.1% |
| Lovex S062 | <<locked>> | 82% | 56,362 psi | 87% | 2972 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 56,202 psi | 86% | 2999 fps | 99.9% |
| Lovex S070 | <<locked>> | 90% | 57,783 psi | 89% | 3045 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,473 psi | 78% | 2936 fps | 99.4% |
| Norma 203B | <<locked>> | 82% | 56,971 psi | 88% | 3028 fps | 100% |
| Norma 204 | <<locked>> | 90% | 56,362 psi | 87% | 3064 fps | 98.4% |
| Norma MRP | <<locked>> | 96% | 56,405 psi | 87% | 3156 fps | 99.6% |
| Norma URP | <<locked>> | 90% | 56,942 psi | 88% | 3068 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 58,059 psi | 89% | 3054 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,085 psi | 85% | 3123 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 90% | 55,550 psi | 85% | 3064 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,287 psi | 82% | 3058 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,550 psi | 58% | 1952 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 58,726 psi | 90% | 3045 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,188 psi | 86% | 3097 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 58,508 psi | 90% | 3110 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 56,739 psi | 87% | 3136 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,849 psi | 75% | 3081 fps | 99.1% |
| Rottweil R 902 | <<locked>> | 82% | 58,189 psi | 90% | 2986 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 55,143 psi | 85% | 2982 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 56,913 psi | 88% | 3041 fps | 97.7% |
| Rottweil R 905 | <<locked>> | 96% | 58,001 psi | 89% | 3107 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 88% | 57,711 psi | 89% | 3031 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,202 psi | 86% | 2999 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 56,362 psi | 87% | 2972 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 57,783 psi | 89% | 3045 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 56,710 psi | 87% | 3041 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,651 psi | 86% | 2861 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,724 psi | 86% | 2949 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 57,551 psi | 89% | 3104 fps | 98.9% |
| Somchem S355 | <<locked>> | 86% | 58,508 psi | 90% | 3028 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,042 psi | 85% | 2976 fps | 96.7% |
| Somchem S365 | <<locked>> | 92% | 56,739 psi | 87% | 3068 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 58,668 psi | 90% | 3084 fps | 99.4% |
| Vihtavuori N135 | <<locked>> | 82% | 58,784 psi | 90% | 2936 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 56,260 psi | 87% | 2949 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,216 psi | 85% | 3005 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 58,102 psi | 89% | 3054 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 82% | 56,927 psi | 88% | 2946 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 57,928 psi | 89% | 3064 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 56,173 psi | 86% | 3081 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 56,362 psi | 87% | 3143 fps | 97.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,982 psi | 80% | 3048 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 58,552 psi | 90% | 3018 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 56,753 psi | 87% | 3084 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,099 psi | 83% | 3186 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,027 psi | 85% | 3018 fps | 98.4% |
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% | 53,519 psi | 82% | 2927 fps | 98.7% |
| Accurate 3100 | <<locked>> | 82% | 32,866 psi | 51% | 2566 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 53,534 psi | 82% | 2913 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,437 psi | 64% | 2785 fps | 99.1% |
| Accurate MAGPRO | <<locked>> | 94% | 51,343 psi | 79% | 3054 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 49,951 psi | 77% | 2890 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 42,569 psi | 65% | 2828 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 92% | 46,485 psi | 72% | 2936 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 98% | 36,999 psi | 57% | 2766 fps | 95.4% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 42,859 psi | 66% | 2828 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,720 psi | 78% | 2913 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 54,070 psi | 83% | 2989 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,972 psi | 61% | 2795 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,730 psi | 70% | 2923 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 42,409 psi | 65% | 2822 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 90% | 43,091 psi | 66% | 2874 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,588 psi | 46% | 2539 fps | 97.4% |
| Alliant Reloder-25 | <<locked>> | 88% | 33,562 psi | 52% | 2667 fps | 95.9% |
| Alliant Reloder-26 | 72.5 gr | 80% | 31,894 psi | 49% | 2661 fps | 96% |
| Bofors RP15 | <<locked>> | 92% | 42,511 psi | 65% | 2861 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 51,576 psi | 79% | 2930 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 43,091 psi | 66% | 2874 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 44,904 psi | 69% | 2799 fps | 97.3% |
| Hodgdon H1000 | <<locked>> | 98% | 45,687 psi | 70% | 2913 fps | 95.9% |
| Hodgdon H380 | <<locked>> | 80% | 51,663 psi | 79% | 2943 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 43,294 psi | 67% | 2835 fps | 97.4% |
| Hodgdon H4350 | <<locked>> | 80% | 46,108 psi | 71% | 2858 fps | 96.9% |
| Hodgdon H4831 | <<locked>> | 92% | 49,734 psi | 77% | 2943 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 92% | 48,791 psi | 75% | 2927 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,521 psi | 58% | 2680 fps | 99.5% |
| Hodgdon Retumbo | <<locked>> | 94% | 39,885 psi | 61% | 2881 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 42,482 psi | 65% | 2851 fps | 96.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,441 psi | 42% | 1706 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,576 psi | 81% | 2927 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 54,679 psi | 84% | 2959 fps | 99.3% |
| IMR 4350 | <<locked>> | 80% | 40,495 psi | 62% | 2723 fps | 96.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,209 psi | 71% | 2828 fps | 98% |
| IMR 4831 | <<locked>> | 80% | 39,668 psi | 61% | 2736 fps | 98.8% |
| IMR 4955 Enduron | <<locked>> | 90% | 48,312 psi | 74% | 2884 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 94% | 47,630 psi | 73% | 2976 fps | 95.6% |
| Lovex S062 | <<locked>> | 80% | 52,866 psi | 81% | 2920 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,874 psi | 67% | 2779 fps | 98.6% |
| Lovex S070 | <<locked>> | 80% | 42,105 psi | 65% | 2759 fps | 97.3% |
| Lovex S071 | <<locked>> | 88% | 34,389 psi | 53% | 2605 fps | 95.6% |
| Norma 203B | <<locked>> | 80% | 53,432 psi | 82% | 2972 fps | 100% |
| Norma 204 | <<locked>> | 82% | 43,004 psi | 66% | 2812 fps | 95.5% |
| Norma MRP | 73.9 gr | 84% | 36,825 psi | 57% | 2759 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 40,959 psi | 63% | 2779 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 80% | 54,201 psi | 83% | 2999 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 44,440 psi | 68% | 2920 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 39,784 psi | 61% | 2762 fps | 97.3% |
| Ramshot Magnum | <<locked>> | 92% | 39,624 psi | 61% | 2785 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,094 psi | 43% | 1749 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,561 psi | 79% | 2927 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,544 psi | 75% | 2976 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,408 psi | 64% | 2805 fps | 98.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,755 psi | 61% | 2815 fps | 98.4% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,782 psi | 57% | 2789 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 54,592 psi | 84% | 2930 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 48,486 psi | 75% | 2874 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 46,963 psi | 72% | 2864 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 86% | 41,684 psi | 64% | 2805 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 44,904 psi | 69% | 2799 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,874 psi | 67% | 2779 fps | 98.6% |
| Shooters World Precision | <<locked>> | 80% | 52,866 psi | 81% | 2920 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,105 psi | 65% | 2759 fps | 97.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,690 psi | 76% | 2927 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,182 psi | 76% | 2766 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,917 psi | 66% | 2720 fps | 97.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 41,321 psi | 64% | 2799 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 48,602 psi | 75% | 2871 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 48,196 psi | 74% | 2858 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 37,695 psi | 58% | 2736 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 39,610 psi | 61% | 2730 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 55,230 psi | 85% | 2890 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 46,427 psi | 71% | 2795 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,337 psi | 65% | 2776 fps | 99.1% |
| Vihtavuori N165 | <<locked>> | 88% | 39,044 psi | 60% | 2707 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 53,447 psi | 82% | 2897 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,814 psi | 64% | 2776 fps | 98.9% |
| Vihtavuori N555 | <<locked>> | 80% | 32,996 psi | 51% | 2618 fps | 97.4% |
| Vihtavuori N560 | 80.9 gr | 92% | 48,892 psi | 75% | 3009 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 98% | 48,544 psi | 75% | 2986 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,481 psi | 64% | 2740 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,482 psi | 67% | 2838 fps | 97.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,165 psi | 40% | 2513 fps | 96.5% |
| Winchester Supreme 780 | <<locked>> | 88% | 41,655 psi | 64% | 2769 fps | 95.3% |
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 87 powders for .300 PRC loaded with the .308 | 165gr | Federal Trophy Bonded. Alliant Reloder-26 delivers the highest muzzle velocity at 3,202 fps; across all powders the maximum-charge window runs from 1,906 fps to 3,202 fps. ADI AR 2225 gives the best case fill at 100 %, and 87 of the 87 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 165.0 gr projectile in 0.308" calls for a 1:10.0 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. Norma MRP, Vihtavuori N560, Alliant Reloder-26 rank at the top here: for .300 PRC with the .308 | 165gr | Federal Trophy Bonded 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.