Load Specifications
Load data in caliber .300 PRC with .3085 | 150gr | Prvi Partizan FMJ bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, ReloadSwiss RS 70 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% | 56,246 psi | 87% | 3100 fps | 98.6% |
| Accurate 3100 | <<locked>> | 98% | 55,898 psi | 86% | 3156 fps | 99.6% |
| Accurate 4064 | <<locked>> | 82% | 56,115 psi | 86% | 3091 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 57,624 psi | 89% | 3212 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 58,494 psi | 90% | 3307 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 84% | 55,796 psi | 86% | 3127 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 58,566 psi | 90% | 3258 fps | 98.4% |
| ADI AR 2213 | <<locked>> | 98% | 56,101 psi | 86% | 3245 fps | 96.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 56,724 psi | 87% | 3150 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 56,927 psi | 88% | 3176 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 58,117 psi | 89% | 3268 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 55,840 psi | 86% | 3235 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 57,798 psi | 89% | 3241 fps | 98.3% |
| Alliant Reloder-22 | <<locked>> | 98% | 55,521 psi | 85% | 3241 fps | 98.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 56,260 psi | 87% | 3225 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,820 psi | 75% | 3150 fps | 99.5% |
| Alliant Reloder-26 | <<locked>> | 96% | 57,043 psi | 88% | 3320 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,476 psi | 84% | 3222 fps | 97.8% |
| Bofors RP3 | <<locked>> | 84% | 58,001 psi | 89% | 3169 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 55,521 psi | 85% | 3241 fps | 98.1% |
| Bofors RP7 | <<locked>> | 88% | 57,043 psi | 88% | 3153 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 84% | 58,160 psi | 89% | 3189 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 55,622 psi | 86% | 3199 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 86% | 55,187 psi | 85% | 3159 fps | 98.1% |
| Hodgdon H4831 | <<locked>> | 96% | 56,231 psi | 87% | 3186 fps | 96.2% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,984 psi | 85% | 3163 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 58,552 psi | 90% | 3186 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,848 psi | 74% | 3189 fps | 97.2% |
| Hodgdon Superformance | <<locked>> | 88% | 56,260 psi | 87% | 3238 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,550 psi | 56% | 2014 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 58,726 psi | 90% | 3163 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 57,566 psi | 89% | 3143 fps | 99.3% |
| IMR 4350 | <<locked>> | 92% | 58,276 psi | 90% | 3186 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 88% | 58,581 psi | 90% | 3182 fps | 99.3% |
| IMR 4831 | <<locked>> | 92% | 57,798 psi | 89% | 3196 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 58,421 psi | 90% | 3202 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 57,624 psi | 89% | 3176 fps | 96.7% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 57,580 psi | 89% | 3287 fps | 97.3% |
| Lovex S062 | <<locked>> | 82% | 55,448 psi | 85% | 3100 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 58,813 psi | 90% | 3176 fps | 99.9% |
| Lovex S070 | <<locked>> | 90% | 56,884 psi | 88% | 3166 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,588 psi | 76% | 3048 fps | 98.9% |
| Norma 203B | <<locked>> | 82% | 56,275 psi | 87% | 3159 fps | 100% |
| Norma 204 | <<locked>> | 90% | 55,651 psi | 86% | 3182 fps | 97.8% |
| Norma MRP | <<locked>> | 96% | 55,303 psi | 85% | 3268 fps | 99.1% |
| Norma URP | <<locked>> | 90% | 55,927 psi | 86% | 3189 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 57,188 psi | 88% | 3182 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 58,494 psi | 90% | 3310 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 92% | 58,595 psi | 90% | 3248 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,417 psi | 81% | 3166 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,304 psi | 57% | 2060 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 57,957 psi | 89% | 3169 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 55,158 psi | 85% | 3225 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 57,580 psi | 89% | 3232 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 55,869 psi | 86% | 3258 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,138 psi | 74% | 3182 fps | 98.4% |
| Rottweil R 902 | <<locked>> | 82% | 57,406 psi | 88% | 3117 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 58,015 psi | 89% | 3163 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 56,275 psi | 87% | 3163 fps | 97% |
| Rottweil R 905 | <<locked>> | 96% | 57,246 psi | 88% | 3228 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 88% | 57,043 psi | 88% | 3153 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 90% | 58,813 psi | 90% | 3176 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 55,448 psi | 85% | 3100 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 56,884 psi | 88% | 3166 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 55,970 psi | 86% | 3169 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 58,378 psi | 90% | 3038 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 58,668 psi | 90% | 3127 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 56,768 psi | 87% | 3225 fps | 98.3% |
| Somchem S355 | <<locked>> | 86% | 57,827 psi | 89% | 3159 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 58,204 psi | 90% | 3153 fps | 96.6% |
| Somchem S365 | <<locked>> | 92% | 55,811 psi | 86% | 3192 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 57,754 psi | 89% | 3199 fps | 99% |
| Vihtavuori N135 | <<locked>> | 82% | 57,827 psi | 89% | 3071 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 58,030 psi | 89% | 3084 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 55,521 psi | 85% | 3077 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 58,059 psi | 89% | 3186 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 57,319 psi | 88% | 3176 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 82% | 56,318 psi | 87% | 3077 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 57,130 psi | 88% | 3186 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,027 psi | 85% | 3199 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,361 psi | 85% | 3255 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 57,899 psi | 89% | 3143 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,854 psi | 86% | 3202 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 52,953 psi | 81% | 3304 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 58,189 psi | 90% | 3196 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% | 52,750 psi | 81% | 3041 fps | 98.1% |
| Accurate 3100 | <<locked>> | 86% | 36,970 psi | 57% | 2779 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 52,504 psi | 81% | 3038 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 40,727 psi | 63% | 2894 fps | 98.4% |
| Accurate MAGPRO | <<locked>> | 96% | 54,389 psi | 84% | 3235 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 49,168 psi | 76% | 3009 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 88% | 44,788 psi | 69% | 2995 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 94% | 48,892 psi | 75% | 3110 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,966 psi | 77% | 3035 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 53,374 psi | 82% | 3114 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,146 psi | 60% | 2897 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,991 psi | 69% | 3038 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 44,512 psi | 68% | 2989 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 92% | 45,237 psi | 70% | 3045 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,935 psi | 45% | 2621 fps | 96.1% |
| Alliant Reloder-25 | <<locked>> | 90% | 35,128 psi | 54% | 2818 fps | 95.6% |
| Alliant Reloder-26 | 78.3 gr | 82% | 33,591 psi | 52% | 2815 fps | 95.7% |
| Bofors RP15 | <<locked>> | 94% | 44,599 psi | 69% | 3025 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 50,734 psi | 78% | 3054 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 45,237 psi | 70% | 3045 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 44,237 psi | 68% | 2910 fps | 96.4% |
| Hodgdon H380 | <<locked>> | 80% | 50,792 psi | 78% | 3061 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 80% | 42,641 psi | 66% | 2943 fps | 96.5% |
| Hodgdon H4350 | <<locked>> | 80% | 45,339 psi | 70% | 2966 fps | 95.9% |
| Hodgdon H4831 | <<locked>> | 94% | 52,518 psi | 81% | 3120 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 94% | 51,300 psi | 79% | 3097 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,869 psi | 57% | 2785 fps | 98.9% |
| Hodgdon Retumbo | <<locked>> | 98% | 44,773 psi | 69% | 3117 fps | 96.2% |
| Hodgdon Superformance | <<locked>> | 80% | 41,640 psi | 64% | 2949 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,441 psi | 42% | 1804 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,721 psi | 80% | 3048 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 53,983 psi | 83% | 3084 fps | 98.8% |
| IMR 4350 | <<locked>> | 80% | 39,784 psi | 61% | 2825 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,527 psi | 70% | 2940 fps | 97.2% |
| IMR 4831 | <<locked>> | 80% | 38,914 psi | 60% | 2838 fps | 98.1% |
| IMR 4895 | <<locked>> | 80% | 54,752 psi | 84% | 3143 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 50,647 psi | 78% | 3051 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 96% | 50,169 psi | 77% | 3146 fps | 95.5% |
| Lovex S062 | <<locked>> | 80% | 52,156 psi | 80% | 3045 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,076 psi | 66% | 2884 fps | 97.9% |
| Lovex S070 | <<locked>> | 80% | 41,394 psi | 64% | 2864 fps | 96.4% |
| Lovex S071 | <<locked>> | 90% | 35,839 psi | 55% | 2753 fps | 95.3% |
| Norma 203B | <<locked>> | 80% | 52,707 psi | 81% | 3097 fps | 100% |
| Norma 204 | <<locked>> | 84% | 45,339 psi | 70% | 2986 fps | 95.3% |
| Norma MRP | 79.8 gr | 86% | 38,827 psi | 60% | 2923 fps | 95% |
| Norma URP | <<locked>> | 80% | 40,205 psi | 62% | 2884 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 80% | 53,403 psi | 82% | 3123 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 50,444 psi | 78% | 3163 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 39,102 psi | 60% | 2867 fps | 96.3% |
| Ramshot Magnum | <<locked>> | 94% | 41,901 psi | 64% | 2953 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,876 psi | 43% | 1847 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,821 psi | 78% | 3045 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,776 psi | 74% | 3100 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,582 psi | 62% | 2910 fps | 98.1% |
| ReloadSwiss RS 70 | 75.7 gr | 80% | 39,088 psi | 60% | 2913 fps | 97.5% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 41,655 psi | 64% | 3028 fps | 96.3% |
| Rottweil R 902 | <<locked>> | 80% | 53,751 psi | 83% | 3058 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 47,645 psi | 73% | 2992 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 49,487 psi | 76% | 3038 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 88% | 43,729 psi | 67% | 2969 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 44,237 psi | 68% | 2910 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,076 psi | 66% | 2884 fps | 97.9% |
| Shooters World Precision | <<locked>> | 80% | 52,156 psi | 80% | 3045 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,394 psi | 64% | 2864 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,921 psi | 75% | 3048 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,385 psi | 74% | 2887 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,192 psi | 65% | 2825 fps | 96.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 43,337 psi | 67% | 2963 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 47,688 psi | 73% | 2989 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,404 psi | 84% | 3091 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 36,825 psi | 57% | 2835 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 41,626 psi | 64% | 2890 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 80% | 54,244 psi | 83% | 3018 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 54,360 psi | 84% | 3031 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 45,672 psi | 70% | 2910 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,640 psi | 64% | 2884 fps | 98.5% |
| Vihtavuori N165 | <<locked>> | 92% | 43,903 psi | 68% | 2927 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 52,663 psi | 81% | 3022 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,060 psi | 63% | 2881 fps | 98.2% |
| Vihtavuori N555 | <<locked>> | 80% | 32,271 psi | 50% | 2710 fps | 96.3% |
| Vihtavuori N560 | <<locked>> | 94% | 51,721 psi | 80% | 3189 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,770 psi | 63% | 2848 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 42,641 psi | 66% | 2943 fps | 96.5% |
| Winchester StaBALL HD | <<locked>> | 82% | 27,441 psi | 42% | 2654 fps | 96% |
| Winchester Supreme 780 | <<locked>> | 90% | 43,859 psi | 67% | 2933 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 94 powders for .300 PRC loaded with the .3085 | 150gr | Prvi Partizan FMJ. Alliant Reloder-26 delivers the highest muzzle velocity at 3,320 fps; across all powders the maximum-charge window runs from 2,014 fps to 3,320 fps. ADI AR 2217 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.3085" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-23 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, ReloadSwiss RS 70, Alliant Reloder-26 rank at the top here: for .300 PRC with the .3085 | 150gr | Prvi Partizan FMJ they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Baschieri & Pellagri 109, Bofors RP30 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.