Load Specifications
Load data in caliber .300 PRC with .308 | 159gr | IBEX TRD bullet and 82 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Alliant Reloder-26 and Vihtavuori N560.
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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 58,726 psi | 90% | 3041 fps | 99.1% |
| Accurate 3100 | <<locked>> | 96% | 55,680 psi | 86% | 3054 fps | 99.7% |
| Accurate 4350 | <<locked>> | 88% | 57,203 psi | 88% | 3100 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 56,246 psi | 87% | 3192 fps | 97.5% |
| Accurate MAGPRO | <<locked>> | 96% | 57,101 psi | 88% | 3192 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 84% | 57,827 psi | 89% | 3054 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 56,971 psi | 88% | 3136 fps | 98.4% |
| ADI AR 2213 | <<locked>> | 98% | 58,479 psi | 90% | 3192 fps | 97.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,394 psi | 64% | 2904 fps | 96.7% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 57,159 psi | 88% | 3133 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 56,014 psi | 86% | 3035 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 56,884 psi | 88% | 3150 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 58,291 psi | 90% | 3169 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 56,492 psi | 87% | 3123 fps | 98.4% |
| Alliant Reloder-22 | <<locked>> | 98% | 58,218 psi | 90% | 3192 fps | 98.7% |
| Alliant Reloder-23 | <<locked>> | 98% | 55,492 psi | 85% | 3120 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,372 psi | 79% | 3107 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 94% | 55,898 psi | 86% | 3212 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 57,203 psi | 88% | 3173 fps | 98.5% |
| Bofors RP3 | <<locked>> | 82% | 57,493 psi | 88% | 3054 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,645 psi | 73% | 3028 fps | 95.9% |
| Bofors RP5 | <<locked>> | 98% | 58,218 psi | 90% | 3192 fps | 98.7% |
| Bofors RP7 | <<locked>> | 86% | 56,173 psi | 86% | 3038 fps | 98.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,705 psi | 78% | 3041 fps | 96.8% |
| Hodgdon H380 | <<locked>> | 82% | 57,159 psi | 88% | 3068 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 58,291 psi | 90% | 3143 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 86% | 57,392 psi | 88% | 3097 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 96% | 58,494 psi | 90% | 3130 fps | 97% |
| Hodgdon H4831 SC | <<locked>> | 96% | 57,363 psi | 88% | 3110 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 57,479 psi | 88% | 3068 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,285 psi | 77% | 3153 fps | 98.2% |
| Hodgdon Superformance | <<locked>> | 88% | 58,624 psi | 90% | 3182 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,144 psi | 57% | 1942 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 57,435 psi | 88% | 3038 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 56,898 psi | 88% | 3068 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 86% | 57,072 psi | 88% | 3054 fps | 99.3% |
| IMR 4831 | <<locked>> | 90% | 57,246 psi | 88% | 3087 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 56,173 psi | 86% | 3054 fps | 96.7% |
| IMR 7828 SSC | <<locked>> | 98% | 55,941 psi | 86% | 3163 fps | 97.2% |
| Lovex S062 | <<locked>> | 82% | 58,204 psi | 90% | 3035 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 58,160 psi | 89% | 3064 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 56,333 psi | 87% | 3058 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,200 psi | 82% | 3015 fps | 99.5% |
| Norma 204 | <<locked>> | 90% | 57,914 psi | 89% | 3123 fps | 98.4% |
| Norma MRP | <<locked>> | 96% | 58,073 psi | 89% | 3222 fps | 99.5% |
| Norma URP | <<locked>> | 90% | 58,581 psi | 90% | 3130 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 56,855 psi | 87% | 3189 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 90% | 57,276 psi | 88% | 3130 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 55,042 psi | 85% | 3120 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,884 psi | 58% | 1988 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 56,695 psi | 87% | 3048 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 57,754 psi | 89% | 3159 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 56,637 psi | 87% | 3117 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 58,305 psi | 90% | 3202 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,894 psi | 78% | 3153 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 84% | 57,508 psi | 88% | 3051 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 58,450 psi | 90% | 3100 fps | 97.6% |
| Rottweil R 905 | <<locked>> | 94% | 56,101 psi | 86% | 3110 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 86% | 56,173 psi | 86% | 3038 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 88% | 58,160 psi | 89% | 3064 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 58,204 psi | 90% | 3035 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 56,333 psi | 87% | 3058 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 58,450 psi | 90% | 3107 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 57,203 psi | 88% | 2920 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 57,464 psi | 88% | 3012 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 55,622 psi | 86% | 3107 fps | 98.3% |
| Somchem S355 | <<locked>> | 84% | 57,159 psi | 88% | 3045 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,797 psi | 87% | 3035 fps | 96.6% |
| Somchem S365 | <<locked>> | 92% | 58,697 psi | 90% | 3133 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 57,029 psi | 88% | 3091 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 86% | 58,189 psi | 90% | 3012 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 56,971 psi | 88% | 3071 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 56,159 psi | 86% | 3061 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 82% | 58,697 psi | 90% | 3009 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 56,318 psi | 87% | 3074 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 58,378 psi | 90% | 3150 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 57,856 psi | 89% | 3205 fps | 97.2% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 54,215 psi | 83% | 3120 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 56,217 psi | 86% | 3025 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 58,508 psi | 90% | 3146 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 55,738 psi | 86% | 3255 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 56,782 psi | 87% | 3077 fps | 98.3% |
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% | 55,245 psi | 85% | 2986 fps | 98.7% |
| Accurate 3100 | <<locked>> | 82% | 35,781 psi | 55% | 2661 fps | 95.8% |
| Accurate 4350 | <<locked>> | 80% | 44,164 psi | 68% | 2871 fps | 99.3% |
| Accurate High Country | <<locked>> | 88% | 46,050 psi | 71% | 2999 fps | 95% |
| Accurate MAGPRO | <<locked>> | 94% | 53,374 psi | 82% | 3123 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 51,459 psi | 79% | 2949 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 44,324 psi | 68% | 2894 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 92% | 48,182 psi | 74% | 3002 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 98% | 38,986 psi | 60% | 2841 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 44,686 psi | 69% | 2897 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,692 psi | 81% | 2979 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,727 psi | 64% | 2867 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,601 psi | 73% | 2995 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 44,237 psi | 68% | 2890 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 88% | 42,337 psi | 65% | 2887 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,865 psi | 49% | 2628 fps | 98% |
| Alliant Reloder-25 | <<locked>> | 86% | 33,649 psi | 52% | 2694 fps | 95.4% |
| Alliant Reloder-26 | 72.4 gr | 80% | 34,345 psi | 53% | 2756 fps | 96.7% |
| Bofors RP15 | <<locked>> | 92% | 44,556 psi | 69% | 2933 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 54,027 psi | 83% | 3002 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 44,686 psi | 69% | 2966 fps | 95% |
| Bofors RP5 | <<locked>> | 88% | 42,337 psi | 65% | 2887 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 46,862 psi | 72% | 2867 fps | 97.4% |
| Hodgdon H1000 | <<locked>> | 98% | 47,529 psi | 73% | 2976 fps | 95.9% |
| Hodgdon H380 | <<locked>> | 80% | 53,722 psi | 83% | 3012 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 45,266 psi | 70% | 2907 fps | 97.6% |
| Hodgdon H4350 | <<locked>> | 80% | 47,718 psi | 73% | 2920 fps | 96.9% |
| Hodgdon H4831 | <<locked>> | 92% | 51,430 psi | 79% | 3009 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 92% | 50,430 psi | 78% | 2989 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,566 psi | 61% | 2753 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 94% | 41,916 psi | 64% | 2959 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 44,295 psi | 68% | 2920 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,876 psi | 43% | 1739 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 54,172 psi | 83% | 2986 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,279 psi | 65% | 2789 fps | 96.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,761 psi | 73% | 2887 fps | 98% |
| IMR 4831 | <<locked>> | 80% | 41,989 psi | 65% | 2812 fps | 99% |
| IMR 4955 Enduron | <<locked>> | 90% | 49,705 psi | 76% | 2940 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 94% | 49,385 psi | 76% | 3038 fps | 95.6% |
| Lovex S062 | <<locked>> | 80% | 54,911 psi | 84% | 2986 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 46,021 psi | 71% | 2848 fps | 98.7% |
| Lovex S070 | <<locked>> | 80% | 44,324 psi | 68% | 2831 fps | 97.5% |
| Lovex S071 | <<locked>> | 86% | 35,128 psi | 54% | 2644 fps | 95.5% |
| Norma 204 | <<locked>> | 82% | 44,788 psi | 69% | 2881 fps | 95.5% |
| Norma MRP | 73.8 gr | 84% | 39,015 psi | 60% | 2841 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 43,047 psi | 66% | 2851 fps | 99% |
| Ramshot Grand | <<locked>> | 92% | 46,238 psi | 71% | 2986 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 41,756 psi | 64% | 2838 fps | 97.5% |
| Ramshot Magnum | <<locked>> | 92% | 41,684 psi | 64% | 2861 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,456 psi | 44% | 1778 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 53,200 psi | 82% | 2989 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,299 psi | 77% | 3045 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,714 psi | 67% | 2884 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,669 psi | 64% | 2887 fps | 98.5% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 38,928 psi | 60% | 2874 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 50,923 psi | 78% | 2946 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 48,675 psi | 75% | 2930 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 86% | 43,569 psi | 67% | 2874 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 46,862 psi | 72% | 2867 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,021 psi | 71% | 2848 fps | 98.7% |
| Shooters World Precision | <<locked>> | 80% | 54,911 psi | 84% | 2986 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 44,324 psi | 68% | 2831 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,445 psi | 79% | 2995 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,807 psi | 78% | 2825 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,049 psi | 69% | 2789 fps | 97.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 43,178 psi | 66% | 2867 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 50,749 psi | 78% | 2940 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 50,024 psi | 77% | 2917 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 39,943 psi | 61% | 2815 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 39,378 psi | 61% | 2746 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 80% | 48,457 psi | 75% | 2861 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,309 psi | 68% | 2844 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 88% | 41,118 psi | 63% | 2779 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 55,259 psi | 85% | 2959 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 43,961 psi | 68% | 2851 fps | 99% |
| Vihtavuori N555 | <<locked>> | 80% | 35,665 psi | 55% | 2713 fps | 98% |
| Vihtavuori N560 | 80.8 gr | 92% | 50,792 psi | 78% | 3077 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 96% | 47,601 psi | 73% | 2999 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,279 psi | 67% | 2808 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,397 psi | 70% | 2910 fps | 97.6% |
| Winchester StaBALL HD | <<locked>> | 80% | 28,587 psi | 44% | 2621 fps | 97.6% |
| Winchester Supreme 780 | <<locked>> | 88% | 43,598 psi | 67% | 2838 fps | 95.4% |
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 82 powders for .300 PRC loaded with the .308 | 159gr | IBEX TRD. Winchester StaBALL HD delivers the highest muzzle velocity at 3,255 fps; across all powders the maximum-charge window runs from 1,942 fps to 3,255 fps. ADI AR 2225 gives the best case fill at 100 %, and 82 of the 82 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 159.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-25, Bofors RP15 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, Alliant Reloder-26, Vihtavuori N560 rank at the top here: for .300 PRC with the .308 | 159gr | IBEX TRD 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.