Load Specifications
Bullet Manufacturer:Nosler
Bullet Weight:150 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:.300 RCM load data
Case Length (l3):2.09"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:75 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:14.5
Load data in caliber .300 RCM with .308 | 150gr | Nosler Partition Gold bullet and 103 powders. The key underlying parameters are shown in the table above.
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.
A valid access license is required to use the Personalized Load Calculator.
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 2015 | <<locked>> | 86% | 54,969 psi | 86% | 2890 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 56,985 psi | 89% | 2966 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 56,594 psi | 89% | 2956 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 55,114 psi | 86% | 2976 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 56,376 psi | 88% | 2943 fps | 96% |
| Accurate 4064 | <<locked>> | 94% | 56,318 psi | 88% | 3002 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 52,170 psi | 82% | 3015 fps | 98.7% |
| Accurate LT-30 | <<locked>> | 82% | 57,043 psi | 89% | 2877 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 57,464 psi | 90% | 2904 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 57,421 psi | 90% | 3038 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 94% | 54,998 psi | 86% | 2979 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 88% | 56,652 psi | 89% | 2992 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 57,130 psi | 90% | 2969 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 54,665 psi | 86% | 3048 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 57,203 psi | 90% | 3156 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 54,520 psi | 85% | 3002 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 54,404 psi | 85% | 2894 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 55,187 psi | 86% | 3022 fps | 99.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,734 psi | 80% | 3018 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 98% | 55,405 psi | 87% | 3123 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,114 psi | 57% | 2730 fps | 96.5% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 56,507 psi | 89% | 2871 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 57,493 psi | 90% | 3054 fps | 99.4% |
| Bofors RP3 | <<locked>> | 94% | 55,100 psi | 86% | 3018 fps | 99.9% |
| Bofors RP7 | <<locked>> | 98% | 55,738 psi | 87% | 2979 fps | 96.1% |
| Hodgdon Benchmark | <<locked>> | 86% | 55,056 psi | 86% | 2923 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 55,738 psi | 87% | 3018 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 57,711 psi | 90% | 3120 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 84% | 57,232 psi | 90% | 2986 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 54,650 psi | 86% | 2959 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 56,565 psi | 89% | 3031 fps | 98.8% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 55,651 psi | 87% | 3071 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 88% | 54,607 psi | 86% | 2999 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,862 psi | 73% | 2894 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 57,232 psi | 90% | 3081 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 56,985 psi | 89% | 3107 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,085 psi | 55% | 1827 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 55,738 psi | 87% | 2995 fps | 99.8% |
| IMR 3031 | <<locked>> | 90% | 57,653 psi | 90% | 3031 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 54,520 psi | 85% | 2966 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 90% | 54,940 psi | 86% | 2940 fps | 96.6% |
| IMR 4198 | <<locked>> | 82% | 54,520 psi | 85% | 2854 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 54,099 psi | 85% | 2956 fps | 96.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 49,501 psi | 78% | 2953 fps | 98.3% |
| IMR 4895 | <<locked>> | 92% | 56,579 psi | 89% | 3054 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 88% | 56,652 psi | 89% | 2992 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 56,971 psi | 89% | 2979 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 57,058 psi | 89% | 3012 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 57,203 psi | 90% | 2963 fps | 99.8% |
| Lovex S062 | <<locked>> | 94% | 57,493 psi | 90% | 3012 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 56,666 psi | 89% | 3002 fps | 98.2% |
| Lovex S070ᴾ | <<locked>> | 100% | 54,157 psi | 85% | 2982 fps | 96.8% |
| Norma 201 | <<locked>> | 90% | 56,159 psi | 88% | 2982 fps | 100% |
| Norma 202 | <<locked>> | 90% | 56,637 psi | 89% | 2986 fps | 100% |
| Norma 203B | <<locked>> | 92% | 54,346 psi | 85% | 3009 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 51,750 psi | 81% | 3009 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 92% | 55,042 psi | 86% | 3038 fps | 99.6% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 50,734 psi | 80% | 2995 fps | 96.8% |
| Ramshot TAC | <<locked>> | 88% | 56,956 psi | 89% | 3002 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 88% | 56,478 psi | 89% | 3025 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 86% | 57,682 psi | 90% | 2989 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,462 psi | 56% | 1870 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 56,115 psi | 88% | 2972 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 57,029 psi | 89% | 3012 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 55,521 psi | 87% | 3091 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 55,288 psi | 87% | 3130 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 51,880 psi | 81% | 3038 fps | 98.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 52,373 psi | 82% | 3061 fps | 98.1% |
| Rottweil R 901 | <<locked>> | 88% | 57,000 psi | 89% | 2966 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 56,550 psi | 89% | 2976 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 54,955 psi | 86% | 3005 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 98% | 55,738 psi | 87% | 2979 fps | 96.1% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 56,666 psi | 89% | 3002 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 90% | 57,058 psi | 89% | 3012 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 57,493 psi | 90% | 3012 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 54,157 psi | 85% | 2982 fps | 96.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 55,651 psi | 87% | 2936 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 56,884 psi | 89% | 3071 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 55,317 psi | 87% | 2920 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 55,201 psi | 87% | 2979 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 55,753 psi | 87% | 3002 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 54,592 psi | 86% | 2877 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 54,404 psi | 85% | 2871 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 57,522 psi | 90% | 2959 fps | 97% |
| Somchem S321 | <<locked>> | 84% | 54,172 psi | 85% | 2969 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 57,145 psi | 90% | 2920 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 54,781 psi | 86% | 2969 fps | 99.6% |
| Somchem S355 | <<locked>> | 96% | 55,216 psi | 87% | 3002 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 46,079 psi | 72% | 2953 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 86% | 57,624 psi | 90% | 2887 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 54,679 psi | 86% | 2861 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 55,898 psi | 88% | 2943 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 57,087 psi | 89% | 2959 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 56,971 psi | 89% | 2982 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 54,186 psi | 85% | 3002 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 88% | 57,334 psi | 90% | 2992 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 55,332 psi | 87% | 2956 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 53,330 psi | 84% | 3009 fps | 98.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,725 psi | 61% | 2808 fps | 96.4% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 55,259 psi | 87% | 2992 fps | 99.9% |
| Winchester 748 | <<locked>> | 88% | 56,797 psi | 89% | 3038 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 55,651 psi | 87% | 3071 fps | 96.9% |
| Winchester StaBALL Match | <<locked>> | 90% | 55,811 psi | 87% | 3015 fps | 99.9% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 45,585 psi | 71% | 2746 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,879 psi | 78% | 2861 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,203 psi | 60% | 2657 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,947 psi | 70% | 2812 fps | 99.9% |
| Accurate 2700 | <<locked>> | 90% | 52,808 psi | 83% | 2887 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 36,100 psi | 57% | 2641 fps | 99.5% |
| Accurate 4350 | <<locked>> | 90% | 36,840 psi | 58% | 2717 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 53,664 psi | 84% | 2828 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 54,056 psi | 85% | 2854 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 42,003 psi | 66% | 2762 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 80% | 35,665 psi | 56% | 2598 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,019 psi | 69% | 2776 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 80% | 43,569 psi | 68% | 2769 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 51,300 psi | 80% | 2989 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 37,840 psi | 59% | 2766 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,143 psi | 55% | 2625 fps | 96.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,111 psi | 80% | 2844 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,768 psi | 59% | 2687 fps | 96.1% |
| Alliant Reloder-16 | <<locked>> | 90% | 37,188 psi | 58% | 2726 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 84% | 34,519 psi | 54% | 2690 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 98% | 34,026 psi | 53% | 2674 fps | 95.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 53,113 psi | 83% | 2825 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,046 psi | 64% | 2756 fps | 96.5% |
| Bofors RP3 | <<locked>> | 80% | 34,490 psi | 54% | 2618 fps | 96.8% |
| Bofors RP7 | <<locked>> | 96% | 52,141 psi | 82% | 2920 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,803 psi | 72% | 2769 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,496 psi | 67% | 2792 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,804 psi | 73% | 2936 fps | 98.3% |
| Hodgdon H322 | <<locked>> | 80% | 50,169 psi | 79% | 2881 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 51,198 psi | 80% | 2907 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 40,538 psi | 64% | 2740 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 96% | 48,573 psi | 76% | 2949 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 42,337 psi | 66% | 2776 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 32,082 psi | 50% | 2566 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,159 psi | 60% | 2736 fps | 97.8% |
| Hodgdon Superformance | <<locked>> | 98% | 52,924 psi | 83% | 3041 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,092 psi | 41% | 1634 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,596 psi | 64% | 2723 fps | 97.9% |
| IMR 3031 | <<locked>> | 80% | 41,611 psi | 65% | 2776 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,405 psi | 59% | 2638 fps | 96.1% |
| IMR 4166 Enduron | <<locked>> | 86% | 48,225 psi | 76% | 2825 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 51,459 psi | 81% | 2808 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 51,010 psi | 80% | 2904 fps | 95.7% |
| IMR 4831 | <<locked>> | 92% | 38,130 psi | 60% | 2726 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 38,667 psi | 61% | 2720 fps | 97% |
| IMR 8208 XBR | <<locked>> | 80% | 44,019 psi | 69% | 2776 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 80% | 49,647 psi | 78% | 2864 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 40,741 psi | 64% | 2740 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 42,206 psi | 66% | 2700 fps | 97.9% |
| Lovex S062 | <<locked>> | 80% | 37,217 psi | 58% | 2641 fps | 97.9% |
| Lovex S065 | <<locked>> | 92% | 44,309 psi | 69% | 2789 fps | 95.6% |
| Lovex S070 | <<locked>> | 96% | 47,674 psi | 75% | 2871 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 41,133 psi | 64% | 2717 fps | 98.7% |
| Norma 202 | <<locked>> | 80% | 41,350 psi | 65% | 2730 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 37,159 psi | 58% | 2677 fps | 96.5% |
| Norma URP | <<locked>> | 92% | 39,697 psi | 62% | 2776 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 36,492 psi | 57% | 2680 fps | 96% |
| Ramshot Hunter | <<locked>> | 96% | 44,469 psi | 70% | 2874 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 43,947 psi | 69% | 2769 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,250 psi | 68% | 2792 fps | 98% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,485 psi | 74% | 2822 fps | 98.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,310 psi | 41% | 1673 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 49,182 psi | 77% | 2864 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 46,891 psi | 73% | 2838 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,218 psi | 61% | 2785 fps | 96.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 32,184 psi | 50% | 2638 fps | 97.5% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 39,334 psi | 62% | 2795 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 42,641 psi | 67% | 2864 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 45,005 psi | 71% | 2769 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,160 psi | 61% | 2664 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 80% | 32,430 psi | 51% | 2559 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 96% | 52,141 psi | 82% | 2920 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 92% | 44,309 psi | 69% | 2789 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,741 psi | 64% | 2740 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 37,217 psi | 58% | 2641 fps | 97.9% |
| Shooters World SW4350 | <<locked>> | 96% | 47,674 psi | 75% | 2871 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 52,083 psi | 82% | 2881 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,504 psi | 53% | 2608 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 52,156 psi | 82% | 2871 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,032 psi | 66% | 2740 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,451 psi | 63% | 2726 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,641 psi | 67% | 2680 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,302 psi | 55% | 2536 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 50,401 psi | 79% | 2844 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 47,529 psi | 74% | 2858 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 42,148 psi | 66% | 2680 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,843 psi | 66% | 2743 fps | 97.7% |
| Somchem S355 | <<locked>> | 80% | 33,489 psi | 52% | 2572 fps | 95.8% |
| Somchem S365 | <<locked>> | 86% | 29,254 psi | 46% | 2546 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 48,211 psi | 76% | 2753 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,873 psi | 67% | 2677 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,363 psi | 60% | 2657 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,001 psi | 61% | 2661 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 31,691 psi | 50% | 2507 fps | 96.7% |
| Vihtavuori N160 | <<locked>> | 90% | 39,073 psi | 61% | 2723 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 43,947 psi | 69% | 2769 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 80% | 37,681 psi | 59% | 2648 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 38,334 psi | 60% | 2723 fps | 95% |
| Vihtavuori N555 | <<locked>> | 98% | 36,361 psi | 57% | 2753 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 32,285 psi | 51% | 2530 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 43,323 psi | 68% | 2812 fps | 99.5% |
| Winchester 760 | <<locked>> | 96% | 48,834 psi | 77% | 2953 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,827 psi | 62% | 2730 fps | 97.9% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 103 powders for .300 RCM loaded with the .308 | 150gr | Nosler Partition Gold. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,156 fps; across all powders the maximum-charge window runs from 1,827 fps to 3,156 fps. Accurate 4350 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.