Load Specifications
Load data in caliber .300 PRC with .308 | 150gr | Nosler Solid Base bullet and 87 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and ReloadSwiss RS 70.
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 2495 | <<locked>> | 82% | 58,262 psi | 90% | 3071 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 55,550 psi | 85% | 3087 fps | 98.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 58,639 psi | 90% | 3196 fps | 99.8% |
| Accurate 4064 | <<locked>> | 84% | 58,711 psi | 90% | 3130 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 56,304 psi | 87% | 3189 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 58,276 psi | 90% | 3163 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 57,261 psi | 88% | 3235 fps | 98.1% |
| ADI AR 2213 | <<locked>> | 98% | 55,114 psi | 85% | 3225 fps | 96.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 58,378 psi | 90% | 3297 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 55,869 psi | 86% | 3133 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 56,086 psi | 86% | 3159 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 57,029 psi | 88% | 3251 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 58,784 psi | 90% | 3274 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 56,753 psi | 87% | 3219 fps | 98.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 58,189 psi | 90% | 3284 fps | 98.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 55,129 psi | 85% | 3209 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,732 psi | 73% | 3127 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 96% | 55,666 psi | 86% | 3301 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 53,214 psi | 82% | 3196 fps | 97.4% |
| Bofors RP3 | <<locked>> | 84% | 56,942 psi | 88% | 3153 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 58,189 psi | 90% | 3284 fps | 98.4% |
| Bofors RP7 | <<locked>> | 88% | 56,115 psi | 86% | 3136 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 84% | 57,145 psi | 88% | 3169 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 58,494 psi | 90% | 3245 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 88% | 57,725 psi | 89% | 3199 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 98% | 57,870 psi | 89% | 3209 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 57,566 psi | 89% | 3169 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 58,436 psi | 90% | 3205 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,789 psi | 72% | 3163 fps | 96.7% |
| Hodgdon Superformance | <<locked>> | 88% | 55,158 psi | 85% | 3219 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,477 psi | 56% | 2005 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 58,682 psi | 90% | 3166 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 57,682 psi | 89% | 3146 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 56,797 psi | 87% | 3127 fps | 99.1% |
| IMR 4350 | <<locked>> | 92% | 57,450 psi | 88% | 3173 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 88% | 57,682 psi | 89% | 3166 fps | 99.2% |
| IMR 4831 | <<locked>> | 92% | 56,869 psi | 87% | 3182 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 57,566 psi | 89% | 3189 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 56,449 psi | 87% | 3153 fps | 96.4% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 56,376 psi | 87% | 3261 fps | 96.9% |
| Lovex S062 | <<locked>> | 84% | 58,088 psi | 89% | 3136 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 57,870 psi | 89% | 3159 fps | 99.8% |
| Lovex S070 | <<locked>> | 90% | 55,941 psi | 86% | 3146 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,530 psi | 75% | 3025 fps | 98.7% |
| Norma 203B | <<locked>> | 82% | 55,376 psi | 85% | 3143 fps | 100% |
| Norma 204 | <<locked>> | 92% | 58,465 psi | 90% | 3225 fps | 98.1% |
| Norma MRP | <<locked>> | 98% | 58,218 psi | 90% | 3317 fps | 99.4% |
| Norma URP | <<locked>> | 92% | 58,581 psi | 90% | 3228 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 56,202 psi | 86% | 3166 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 57,014 psi | 88% | 3281 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 92% | 57,464 psi | 88% | 3228 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,140 psi | 79% | 3140 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,246 psi | 57% | 2054 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 57,043 psi | 88% | 3150 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 57,972 psi | 89% | 3264 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 56,405 psi | 87% | 3212 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 58,726 psi | 90% | 3304 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,021 psi | 72% | 3156 fps | 98% |
| Rottweil R 902 | <<locked>> | 82% | 56,492 psi | 87% | 3100 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 56,971 psi | 88% | 3146 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 55,288 psi | 85% | 3143 fps | 96.7% |
| Rottweil R 905 | <<locked>> | 96% | 56,159 psi | 86% | 3209 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 88% | 56,115 psi | 86% | 3136 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 90% | 57,870 psi | 89% | 3159 fps | 99.8% |
| Shooters World Precision | <<locked>> | 84% | 58,088 psi | 89% | 3136 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 55,941 psi | 86% | 3146 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 58,711 psi | 90% | 3212 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 57,566 psi | 89% | 3025 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 57,609 psi | 89% | 3107 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 55,680 psi | 86% | 3202 fps | 98% |
| Somchem S355 | <<locked>> | 86% | 56,782 psi | 87% | 3143 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 57,130 psi | 88% | 3130 fps | 96.3% |
| Somchem S365 | <<locked>> | 94% | 58,494 psi | 90% | 3232 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 56,753 psi | 87% | 3179 fps | 98.8% |
| Vihtavuori N135 | <<locked>> | 82% | 57,043 psi | 88% | 3054 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 57,188 psi | 88% | 3071 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 58,305 psi | 90% | 3114 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 56,869 psi | 87% | 3163 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 56,188 psi | 86% | 3153 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 82% | 55,376 psi | 85% | 3061 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 56,260 psi | 87% | 3173 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 57,696 psi | 89% | 3238 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 58,247 psi | 90% | 3304 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 56,724 psi | 87% | 3123 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 58,697 psi | 90% | 3248 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 51,169 psi | 79% | 3278 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 56,985 psi | 88% | 3173 fps | 98% |
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 2495 | <<locked>> | 80% | 54,636 psi | 84% | 3018 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 51,837 psi | 80% | 3022 fps | 97.8% |
| Accurate 3100 | <<locked>> | 86% | 36,303 psi | 56% | 2762 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 51,808 psi | 80% | 3025 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,871 psi | 61% | 2874 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 80% | 48,530 psi | 75% | 2995 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 46,934 psi | 72% | 3041 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 96% | 51,430 psi | 79% | 3153 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 54,447 psi | 84% | 3232 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,298 psi | 76% | 3022 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 52,489 psi | 81% | 3097 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,551 psi | 59% | 2881 fps | 98.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,019 psi | 68% | 3018 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 46,572 psi | 72% | 3028 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 44,411 psi | 68% | 3022 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,442 psi | 44% | 2605 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 90% | 34,432 psi | 53% | 2799 fps | 95.1% |
| Alliant Reloder-26 | 77 gr | 82% | 32,822 psi | 50% | 2792 fps | 95.3% |
| Bofors RP15 | <<locked>> | 96% | 46,746 psi | 72% | 3071 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 49,864 psi | 77% | 3035 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 44,411 psi | 68% | 3022 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 43,497 psi | 67% | 2890 fps | 96.1% |
| Hodgdon H380 | <<locked>> | 80% | 49,995 psi | 77% | 3045 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 41,727 psi | 64% | 2923 fps | 96.1% |
| Hodgdon H4350 | <<locked>> | 80% | 44,599 psi | 69% | 2946 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 96% | 53,969 psi | 83% | 3143 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,085 psi | 56% | 2766 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 54,723 psi | 84% | 3146 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 43,743 psi | 67% | 3091 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 40,828 psi | 63% | 2930 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,383 psi | 42% | 1798 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 55,143 psi | 85% | 3110 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,053 psi | 79% | 3031 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 53,229 psi | 82% | 3064 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 41,800 psi | 64% | 2871 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,947 psi | 69% | 2927 fps | 96.9% |
| IMR 4831 | <<locked>> | 80% | 38,305 psi | 59% | 2822 fps | 97.8% |
| IMR 4895 | <<locked>> | 80% | 53,853 psi | 83% | 3127 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 53,084 psi | 82% | 3094 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 96% | 49,182 psi | 76% | 3123 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 51,300 psi | 79% | 3028 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,482 psi | 65% | 2871 fps | 97.7% |
| Lovex S070 | <<locked>> | 80% | 40,669 psi | 63% | 2844 fps | 96% |
| Lovex S071 | <<locked>> | 92% | 37,434 psi | 58% | 2792 fps | 95.8% |
| Norma 203B | <<locked>> | 80% | 51,837 psi | 80% | 3081 fps | 100% |
| Norma 204 | <<locked>> | 86% | 47,645 psi | 73% | 3028 fps | 95.9% |
| Norma MRP | 80.2 gr | 88% | 40,611 psi | 62% | 2969 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 39,392 psi | 61% | 2864 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 80% | 52,634 psi | 81% | 3107 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 49,269 psi | 76% | 3136 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 38,377 psi | 59% | 2848 fps | 96% |
| Ramshot Magnum | <<locked>> | 96% | 43,976 psi | 68% | 2995 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,833 psi | 43% | 1841 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,922 psi | 77% | 3025 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,746 psi | 72% | 3081 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,827 psi | 61% | 2890 fps | 97.9% |
| ReloadSwiss RS 70 | 74.5 gr | 80% | 38,421 psi | 59% | 2894 fps | 97.2% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 40,770 psi | 63% | 3002 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 53,069 psi | 82% | 3045 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,789 psi | 72% | 2972 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 48,501 psi | 75% | 3018 fps | 95% |
| Rottweil R 905 | <<locked>> | 90% | 45,774 psi | 70% | 3012 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 43,497 psi | 67% | 2890 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,482 psi | 65% | 2871 fps | 97.7% |
| Shooters World Precision | <<locked>> | 80% | 51,300 psi | 79% | 3028 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,669 psi | 63% | 2844 fps | 96% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,138 psi | 74% | 3031 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,747 psi | 73% | 2874 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,669 psi | 64% | 2808 fps | 96.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 45,382 psi | 70% | 3005 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 47,036 psi | 72% | 2972 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 53,316 psi | 82% | 3068 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 35,984 psi | 55% | 2815 fps | 99.6% |
| Somchem S385 | <<locked>> | 86% | 40,799 psi | 63% | 2867 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 80% | 53,476 psi | 82% | 3005 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 53,534 psi | 82% | 3015 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 44,875 psi | 69% | 2894 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,901 psi | 63% | 2867 fps | 98.3% |
| Vihtavuori N165 | <<locked>> | 92% | 42,960 psi | 66% | 2907 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 51,866 psi | 80% | 3009 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 40,350 psi | 62% | 2864 fps | 98% |
| Vihtavuori N555 | <<locked>> | 80% | 31,517 psi | 48% | 2690 fps | 95.9% |
| Vihtavuori N560 | <<locked>> | 94% | 50,488 psi | 78% | 3163 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,987 psi | 62% | 2831 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 41,858 psi | 64% | 2923 fps | 96.2% |
| Winchester StaBALL HD | <<locked>> | 82% | 26,919 psi | 41% | 2635 fps | 95.5% |
| Winchester Supreme 780 | <<locked>> | 92% | 46,079 psi | 71% | 2979 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 95 powders for .300 PRC loaded with the .308 | 150gr | Nosler Solid Base. Norma MRP delivers the highest muzzle velocity at 3,317 fps; across all powders the maximum-charge window runs from 2,005 fps to 3,317 fps. Accurate 3100 gives the best case fill at 100 %, and 95 of the 95 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 150.0 gr projectile in 0.308" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2217, ADI AR 2225 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. Alliant Reloder-26, Norma MRP, ReloadSwiss RS 70 rank at the top here: for .300 PRC with the .308 | 150gr | Nosler Solid Base they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, ADI AR 2225, Baschieri & Pellagri 109 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.