Load Specifications
Load data in caliber .300 PRC with .308 | 165gr | Nosler Solid Base bullet and 79 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 3100 | <<locked>> | 96% | 55,448 psi | 85% | 3025 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 56,971 psi | 88% | 3068 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 57,972 psi | 89% | 3176 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 84% | 58,088 psi | 89% | 3031 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 57,769 psi | 89% | 3120 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 96% | 55,463 psi | 85% | 3117 fps | 97.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,263 psi | 63% | 2884 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,999 psi | 86% | 3005 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 57,682 psi | 89% | 3127 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 55,187 psi | 85% | 3087 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 57,101 psi | 88% | 3107 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 96% | 55,187 psi | 85% | 3110 fps | 98.7% |
| Alliant Reloder-23 | <<locked>> | 98% | 56,246 psi | 87% | 3094 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,880 psi | 80% | 3087 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 56,811 psi | 87% | 3186 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 57,740 psi | 89% | 3153 fps | 99% |
| Bofors RP3 | <<locked>> | 82% | 56,956 psi | 88% | 3018 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,906 psi | 74% | 3009 fps | 96.7% |
| Bofors RP5 | <<locked>> | 96% | 55,187 psi | 85% | 3110 fps | 98.7% |
| Bofors RP7 | <<locked>> | 86% | 56,101 psi | 86% | 3012 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 51,024 psi | 78% | 3028 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 82% | 57,087 psi | 88% | 3041 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 58,784 psi | 90% | 3123 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 86% | 57,914 psi | 89% | 3081 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 94% | 55,564 psi | 85% | 3054 fps | 97% |
| Hodgdon H4831 SC | <<locked>> | 96% | 58,146 psi | 89% | 3100 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 58,059 psi | 89% | 3048 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,908 psi | 78% | 3143 fps | 98.9% |
| Hodgdon Superformance | <<locked>> | 86% | 55,376 psi | 85% | 3097 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,782 psi | 57% | 1923 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 57,740 psi | 89% | 3015 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 57,450 psi | 88% | 3051 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 57,609 psi | 89% | 3038 fps | 99.6% |
| IMR 4831 | <<locked>> | 90% | 57,145 psi | 88% | 3058 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 56,666 psi | 87% | 3041 fps | 97.4% |
| IMR 7828 SSC | <<locked>> | 98% | 56,884 psi | 88% | 3153 fps | 98% |
| Lovex S062 | <<locked>> | 82% | 58,001 psi | 89% | 3005 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 57,943 psi | 89% | 3035 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 56,173 psi | 86% | 3028 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,721 psi | 81% | 2982 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 58,639 psi | 90% | 3110 fps | 98.9% |
| Norma MRP | <<locked>> | 94% | 54,984 psi | 85% | 3136 fps | 99.5% |
| Norma URP | <<locked>> | 88% | 55,405 psi | 85% | 3051 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 57,754 psi | 89% | 3179 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 90% | 57,899 psi | 89% | 3110 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 55,956 psi | 86% | 3107 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,608 psi | 58% | 1969 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 56,724 psi | 87% | 3025 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 58,668 psi | 90% | 3133 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 56,985 psi | 88% | 3094 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 55,172 psi | 85% | 3120 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 51,358 psi | 79% | 3140 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 84% | 57,232 psi | 88% | 3018 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 55,506 psi | 85% | 3031 fps | 97.7% |
| Rottweil R 905 | <<locked>> | 94% | 56,608 psi | 87% | 3094 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 86% | 56,101 psi | 86% | 3012 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 57,943 psi | 89% | 3035 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 58,001 psi | 89% | 3005 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 56,173 psi | 86% | 3028 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 55,129 psi | 85% | 3022 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 57,203 psi | 88% | 2890 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 57,537 psi | 89% | 2989 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 56,159 psi | 86% | 3087 fps | 98.8% |
| Somchem S355 | <<locked>> | 84% | 56,898 psi | 88% | 3015 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 57,058 psi | 88% | 3018 fps | 97.3% |
| Somchem S365 | <<locked>> | 90% | 55,434 psi | 85% | 3054 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 57,130 psi | 88% | 3068 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 86% | 58,175 psi | 89% | 2982 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 57,261 psi | 88% | 3045 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 56,608 psi | 87% | 3041 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 82% | 58,784 psi | 90% | 2979 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 56,492 psi | 87% | 3048 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 58,465 psi | 90% | 3120 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 58,798 psi | 90% | 3192 fps | 97.9% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 54,621 psi | 84% | 3100 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 57,029 psi | 88% | 3002 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 55,187 psi | 85% | 3068 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 57,464 psi | 88% | 3232 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 57,305 psi | 88% | 3061 fps | 98.9% |
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>> | 82% | 34,505 psi | 53% | 2608 fps | 95.9% |
| Accurate 4350 | <<locked>> | 80% | 43,250 psi | 67% | 2828 fps | 99.4% |
| Accurate MAGPRO | <<locked>> | 92% | 50,285 psi | 77% | 3041 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 51,532 psi | 79% | 2923 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 41,394 psi | 64% | 2808 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 90% | 45,208 psi | 70% | 2917 fps | 95% |
| ADI AR 2225 | <<locked>> | 96% | 36,129 psi | 56% | 2749 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,605 psi | 81% | 2949 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,539 psi | 64% | 2835 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,790 psi | 74% | 2966 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 41,321 psi | 64% | 2802 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 88% | 42,047 psi | 65% | 2858 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,879 psi | 48% | 2579 fps | 98.1% |
| Alliant Reloder-25 | <<locked>> | 86% | 32,735 psi | 50% | 2651 fps | 95.8% |
| Alliant Reloder-26 | 75.2 gr | 80% | 33,547 psi | 52% | 2710 fps | 97% |
| Bofors RP15 | <<locked>> | 90% | 41,655 psi | 64% | 2848 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 53,432 psi | 82% | 2966 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 44,643 psi | 69% | 2940 fps | 95.8% |
| Bofors RP5 | <<locked>> | 88% | 42,047 psi | 65% | 2858 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 46,325 psi | 71% | 2838 fps | 97.8% |
| Hodgdon H1000 | <<locked>> | 96% | 44,541 psi | 69% | 2897 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 53,388 psi | 82% | 2982 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 44,962 psi | 69% | 2877 fps | 98% |
| Hodgdon H4350 | <<locked>> | 80% | 47,688 psi | 73% | 2900 fps | 97.5% |
| Hodgdon H4831 | <<locked>> | 90% | 48,356 psi | 74% | 2927 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 90% | 47,471 psi | 73% | 2910 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,088 psi | 60% | 2717 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 92% | 38,943 psi | 60% | 2861 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 44,295 psi | 68% | 2894 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,644 psi | 43% | 1722 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 54,230 psi | 83% | 2963 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,829 psi | 64% | 2759 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,761 psi | 73% | 2867 fps | 98.4% |
| IMR 4831 | <<locked>> | 80% | 41,365 psi | 64% | 2776 fps | 99.2% |
| IMR 4955 Enduron | <<locked>> | 88% | 46,963 psi | 72% | 2864 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 92% | 46,340 psi | 71% | 2953 fps | 95.5% |
| Lovex S062 | <<locked>> | 80% | 54,563 psi | 84% | 2953 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 45,310 psi | 70% | 2815 fps | 99% |
| Lovex S070 | <<locked>> | 80% | 43,526 psi | 67% | 2795 fps | 97.9% |
| Lovex S071 | <<locked>> | 86% | 33,678 psi | 52% | 2589 fps | 95.6% |
| Norma 204 | <<locked>> | 80% | 41,713 psi | 64% | 2792 fps | 95.3% |
| Norma MRP | 74.8 gr | 82% | 35,955 psi | 55% | 2740 fps | 95% |
| Norma URP | <<locked>> | 80% | 42,496 psi | 65% | 2815 fps | 99.3% |
| Ramshot Grand | <<locked>> | 92% | 46,412 psi | 71% | 2969 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 41,466 psi | 64% | 2805 fps | 97.9% |
| Ramshot Magnum | <<locked>> | 90% | 38,537 psi | 59% | 2766 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,152 psi | 43% | 1762 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 53,171 psi | 82% | 2966 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,720 psi | 78% | 3015 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,265 psi | 67% | 2848 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,524 psi | 64% | 2858 fps | 99% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 38,450 psi | 59% | 2844 fps | 96.3% |
| Rottweil R 903 | <<locked>> | 80% | 50,183 psi | 77% | 2910 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 45,745 psi | 70% | 2848 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 84% | 40,495 psi | 62% | 2782 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 46,325 psi | 71% | 2838 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,310 psi | 70% | 2815 fps | 99% |
| Shooters World Precision | <<locked>> | 80% | 54,563 psi | 84% | 2953 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 43,526 psi | 67% | 2795 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,605 psi | 79% | 2969 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,633 psi | 78% | 2795 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,425 psi | 68% | 2759 fps | 97.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 40,132 psi | 62% | 2779 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 50,212 psi | 77% | 2904 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 49,995 psi | 77% | 2897 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 39,334 psi | 61% | 2772 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 38,493 psi | 59% | 2707 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 80% | 47,950 psi | 74% | 2828 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,019 psi | 68% | 2815 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 86% | 38,159 psi | 59% | 2690 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 55,100 psi | 85% | 2927 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 43,395 psi | 67% | 2815 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 80% | 34,505 psi | 53% | 2661 fps | 98.1% |
| Vihtavuori N560 | 82.1 gr | 90% | 47,848 psi | 74% | 2992 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 96% | 47,601 psi | 73% | 2972 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,018 psi | 66% | 2776 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,092 psi | 69% | 2881 fps | 98% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,398 psi | 42% | 2566 fps | 97.6% |
| Winchester Supreme 780 | <<locked>> | 86% | 40,538 psi | 62% | 2753 fps | 95.1% |
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 | 165gr | Nosler Solid Base. Winchester StaBALL HD delivers the highest muzzle velocity at 3,232 fps; across all powders the maximum-charge window runs from 1,923 fps to 3,232 fps. ADI AR 2217 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 57–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.308" calls for a 1:13.0 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. Norma MRP, Vihtavuori N560, Alliant Reloder-26 rank at the top here: for .300 PRC with the .308 | 165gr | Nosler Solid Base they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, IMR 8133 Enduron, ReloadSwiss RS 80, Vihtavuori N170 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.