Load Specifications
Load data in caliber .300 PRC with .308 | 150gr | Norma ECO Strike bullet and 94 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 Hodgdon H414.
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% | 56,072 psi | 86% | 3045 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 57,725 psi | 89% | 3123 fps | 98.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 56,347 psi | 87% | 3166 fps | 99.6% |
| Accurate 4064 | <<locked>> | 84% | 56,666 psi | 87% | 3104 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 58,334 psi | 90% | 3225 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 56,971 psi | 88% | 3146 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,738 psi | 86% | 3209 fps | 97.8% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 57,377 psi | 88% | 3264 fps | 96.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 56,927 psi | 88% | 3278 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 57,972 psi | 89% | 3169 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 58,175 psi | 89% | 3196 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,405 psi | 85% | 3225 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 57,000 psi | 88% | 3255 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 55,172 psi | 85% | 3196 fps | 97.8% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 56,449 psi | 87% | 3258 fps | 98.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 53,142 psi | 82% | 3179 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,137 psi | 71% | 3097 fps | 99% |
| Alliant Reloder-26 | <<locked>> | 98% | 57,914 psi | 89% | 3340 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,547 psi | 79% | 3166 fps | 97% |
| Bofors RP3 | <<locked>> | 84% | 54,969 psi | 85% | 3123 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 56,449 psi | 87% | 3258 fps | 98.1% |
| Bofors RP7 | <<locked>> | 90% | 58,117 psi | 89% | 3169 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 84% | 55,405 psi | 85% | 3143 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 56,782 psi | 87% | 3219 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 88% | 56,420 psi | 87% | 3179 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 98% | 57,508 psi | 88% | 3205 fps | 96.3% |
| Hodgdon H4831 SC | <<locked>> | 98% | 56,144 psi | 86% | 3182 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 55,796 psi | 86% | 3146 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 56,971 psi | 88% | 3186 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 57,479 psi | 88% | 3258 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,303 psi | 56% | 2001 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 57,377 psi | 88% | 3150 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 56,304 psi | 87% | 3127 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,347 psi | 85% | 3104 fps | 98.9% |
| IMR 4350 | <<locked>> | 92% | 55,927 psi | 86% | 3146 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 88% | 56,275 psi | 87% | 3143 fps | 99% |
| IMR 4831 | <<locked>> | 94% | 58,755 psi | 90% | 3212 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,811 psi | 86% | 3163 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 58,624 psi | 90% | 3192 fps | 96.7% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,563 psi | 84% | 3232 fps | 96.4% |
| Lovex S060 | <<locked>> | 82% | 57,740 psi | 89% | 3110 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 56,550 psi | 87% | 3120 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 56,420 psi | 87% | 3140 fps | 99.7% |
| Lovex S070 | <<locked>> | 92% | 57,783 psi | 89% | 3179 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,514 psi | 72% | 2992 fps | 98.3% |
| Norma 201 | <<locked>> | 82% | 57,696 psi | 89% | 3130 fps | 100% |
| Norma 202 | <<locked>> | 82% | 58,653 psi | 90% | 3127 fps | 100% |
| Norma 203B | <<locked>> | 84% | 57,450 psi | 88% | 3179 fps | 100% |
| Norma 204 | <<locked>> | 92% | 56,869 psi | 87% | 3202 fps | 97.8% |
| Norma MRP | <<locked>> | 98% | 56,173 psi | 86% | 3284 fps | 99.1% |
| Norma URP | <<locked>> | 92% | 56,826 psi | 87% | 3205 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 58,610 psi | 90% | 3205 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 55,085 psi | 85% | 3248 fps | 96.9% |
| Ramshot Hunter | <<locked>> | 92% | 55,854 psi | 86% | 3205 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,255 psi | 76% | 3107 fps | 97.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,014 psi | 57% | 2051 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,477 psi | 85% | 3127 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 56,202 psi | 86% | 3245 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 58,508 psi | 90% | 3248 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 57,072 psi | 88% | 3281 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,223 psi | 70% | 3117 fps | 97.4% |
| Rottweil R 902 | <<locked>> | 84% | 58,276 psi | 90% | 3130 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 55,230 psi | 85% | 3123 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 57,348 psi | 88% | 3179 fps | 97% |
| Rottweil R 905 | <<locked>> | 98% | 58,247 psi | 90% | 3245 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 90% | 58,117 psi | 89% | 3169 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 90% | 56,420 psi | 87% | 3140 fps | 99.7% |
| Shooters World Precision | <<locked>> | 84% | 56,550 psi | 87% | 3120 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 57,783 psi | 89% | 3179 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 57,072 psi | 88% | 3189 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 57,711 psi | 89% | 3159 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 58,508 psi | 90% | 3058 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 56,043 psi | 86% | 3005 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,014 psi | 86% | 3087 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 57,754 psi | 89% | 3238 fps | 98.3% |
| Somchem S335 | <<locked>> | 82% | 58,160 psi | 89% | 3051 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 55,216 psi | 85% | 3120 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 55,434 psi | 85% | 3107 fps | 95.9% |
| Somchem S365 | <<locked>> | 94% | 56,608 psi | 87% | 3209 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 58,697 psi | 90% | 3212 fps | 99% |
| Vihtavuori N135 | <<locked>> | 82% | 55,405 psi | 85% | 3038 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,564 psi | 85% | 3051 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 56,623 psi | 87% | 3094 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 55,405 psi | 85% | 3143 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,317 psi | 84% | 3127 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 84% | 57,421 psi | 88% | 3097 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 58,146 psi | 89% | 3205 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 55,448 psi | 85% | 3209 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 56,304 psi | 87% | 3271 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,172 psi | 85% | 3107 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 57,043 psi | 88% | 3222 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,066 psi | 75% | 3248 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 58,204 psi | 90% | 3169 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 55,129 psi | 85% | 3146 fps | 97.7% |
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% | 52,431 psi | 81% | 2992 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 50,488 psi | 78% | 3002 fps | 97.5% |
| Accurate 3100 | <<locked>> | 88% | 36,869 psi | 57% | 2779 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 49,734 psi | 77% | 2995 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,116 psi | 59% | 2835 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 80% | 47,065 psi | 72% | 2969 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 90% | 45,440 psi | 70% | 3009 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 96% | 49,951 psi | 77% | 3127 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 52,765 psi | 81% | 3205 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,776 psi | 74% | 2999 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,995 psi | 78% | 3074 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,202 psi | 57% | 2851 fps | 97.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,511 psi | 65% | 2992 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 90% | 45,208 psi | 70% | 3002 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 94% | 45,759 psi | 70% | 3054 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 82% | 28,950 psi | 45% | 2628 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 92% | 35,346 psi | 54% | 2828 fps | 95.5% |
| Alliant Reloder-26 | 78.3 gr | 84% | 33,692 psi | 52% | 2822 fps | 95.6% |
| Bofors RP15 | <<locked>> | 96% | 45,063 psi | 69% | 3038 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 47,964 psi | 74% | 3005 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 45,759 psi | 70% | 3054 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 42,090 psi | 65% | 2864 fps | 95.6% |
| Hodgdon H380 | <<locked>> | 80% | 48,443 psi | 75% | 3018 fps | 99.3% |
| Hodgdon H414 | 71.2 gr | 80% | 40,263 psi | 62% | 2890 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 80% | 43,134 psi | 66% | 2920 fps | 95% |
| Hodgdon H4831 | <<locked>> | 96% | 53,519 psi | 82% | 3136 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 52,475 psi | 81% | 3120 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,621 psi | 53% | 2733 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 53,214 psi | 82% | 3123 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 42,511 psi | 65% | 2972 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,122 psi | 42% | 1791 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 53,838 psi | 83% | 3094 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,501 psi | 76% | 3009 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,967 psi | 80% | 3045 fps | 98.4% |
| IMR 4350 | <<locked>> | 82% | 40,364 psi | 62% | 2838 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,729 psi | 67% | 2900 fps | 96.6% |
| IMR 4831 | <<locked>> | 80% | 36,579 psi | 56% | 2785 fps | 97.3% |
| IMR 4895 | <<locked>> | 80% | 52,344 psi | 81% | 3104 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 51,648 psi | 79% | 3068 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 98% | 51,010 psi | 78% | 3163 fps | 95.5% |
| Lovex S060 | <<locked>> | 80% | 54,259 psi | 83% | 3058 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 49,734 psi | 77% | 3005 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,031 psi | 63% | 2841 fps | 97.2% |
| Lovex S070 | <<locked>> | 80% | 39,189 psi | 60% | 2815 fps | 95.5% |
| Lovex S071 | <<locked>> | 92% | 35,708 psi | 55% | 2753 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 54,143 psi | 83% | 3074 fps | 100% |
| Norma 202 | <<locked>> | 80% | 55,056 psi | 85% | 3074 fps | 100% |
| Norma 203B | <<locked>> | 80% | 50,357 psi | 77% | 3058 fps | 100% |
| Norma 204 | <<locked>> | 86% | 46,108 psi | 71% | 3002 fps | 95.4% |
| Norma MRP | 81.5 gr | 90% | 42,032 psi | 65% | 3005 fps | 96% |
| Norma URP | <<locked>> | 80% | 37,927 psi | 58% | 2831 fps | 97.5% |
| Ramshot Big Game | <<locked>> | 80% | 50,995 psi | 78% | 3081 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 51,329 psi | 79% | 3179 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 36,825 psi | 57% | 2812 fps | 95.3% |
| Ramshot Magnum | <<locked>> | 96% | 42,366 psi | 65% | 2963 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,514 psi | 42% | 1834 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,544 psi | 75% | 3002 fps | 98.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,252 psi | 70% | 3058 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,087 psi | 59% | 2854 fps | 97.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,941 psi | 57% | 2861 fps | 96.6% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 42,119 psi | 65% | 3041 fps | 96.2% |
| Rottweil R 902 | <<locked>> | 80% | 51,474 psi | 79% | 3022 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,078 psi | 69% | 2946 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 92% | 50,372 psi | 77% | 3054 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 90% | 44,280 psi | 68% | 2982 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 42,090 psi | 65% | 2864 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,031 psi | 63% | 2841 fps | 97.2% |
| Shooters World Precision | <<locked>> | 80% | 49,734 psi | 77% | 3005 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,189 psi | 60% | 2815 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,514 psi | 72% | 3005 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 54,012 psi | 83% | 3100 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 54,810 psi | 84% | 3002 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,398 psi | 71% | 2854 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,089 psi | 62% | 2779 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 43,874 psi | 67% | 2979 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 54,665 psi | 84% | 3002 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 45,484 psi | 70% | 2946 fps | 99.9% |
| Somchem S361 | <<locked>> | 92% | 51,851 psi | 80% | 3045 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 34,389 psi | 53% | 2779 fps | 99.2% |
| Somchem S385 | <<locked>> | 88% | 41,974 psi | 65% | 2900 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 80% | 51,837 psi | 80% | 2982 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,112 psi | 80% | 2995 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,395 psi | 67% | 2867 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,436 psi | 61% | 2835 fps | 97.9% |
| Vihtavuori N165 | <<locked>> | 94% | 44,280 psi | 68% | 2936 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 50,473 psi | 78% | 2986 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,885 psi | 60% | 2835 fps | 97.5% |
| Vihtavuori N555 | <<locked>> | 80% | 29,834 psi | 46% | 2644 fps | 95% |
| Vihtavuori N560 | <<locked>> | 96% | 52,446 psi | 81% | 3202 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,725 psi | 60% | 2805 fps | 99.5% |
| Winchester 760 | <<locked>> | 80% | 40,437 psi | 62% | 2894 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 84% | 27,282 psi | 42% | 2651 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 54,389 psi | 84% | 3110 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 44,498 psi | 68% | 2946 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 102 powders for .300 PRC loaded with the .308 | 150gr | Norma ECO Strike. Alliant Reloder-26 delivers the highest muzzle velocity at 3,340 fps; across all powders the maximum-charge window runs from 2,001 fps to 3,340 fps. Accurate 3100 gives the best case fill at 100 %, and 102 of the 102 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 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, ADI AR 2217 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, Hodgdon H414 rank at the top here: for .300 PRC with the .308 | 150gr | Norma ECO Strike 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.