
Load Specifications
Load data in caliber .300 RCM with .308 | 168gr | CutEdge MTAC bullet and 106 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.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 55,129 psi | 86% | 2723 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 56,898 psi | 89% | 2795 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 56,405 psi | 88% | 2785 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 55,376 psi | 87% | 2812 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 56,724 psi | 89% | 2792 fps | 96.9% |
| Accurate 4064 | <<locked>> | 94% | 56,115 psi | 88% | 2828 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 52,620 psi | 82% | 2861 fps | 99.3% |
| Accurate LT-30 | <<locked>> | 82% | 57,450 psi | 90% | 2710 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 57,740 psi | 90% | 2871 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 55,230 psi | 87% | 2818 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 88% | 56,782 psi | 89% | 2822 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 57,319 psi | 90% | 2795 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 55,042 psi | 86% | 2877 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 57,682 psi | 90% | 2992 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 54,766 psi | 86% | 2838 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 54,752 psi | 86% | 2726 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 55,695 psi | 87% | 2861 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,937 psi | 80% | 2861 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 98% | 55,709 psi | 87% | 2959 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,998 psi | 56% | 2592 fps | 97.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 40,016 psi | 63% | 2740 fps | 96.4% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 56,985 psi | 89% | 2710 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 53,896 psi | 84% | 2835 fps | 99.5% |
| Bofors RP3 | <<locked>> | 94% | 55,201 psi | 87% | 2851 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 55,738 psi | 87% | 2818 fps | 97% |
| Hodgdon Benchmark | <<locked>> | 86% | 55,347 psi | 87% | 2759 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 56,115 psi | 88% | 2854 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 54,331 psi | 85% | 2897 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 84% | 57,580 psi | 90% | 2815 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 55,042 psi | 86% | 2795 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 56,536 psi | 89% | 2864 fps | 99.3% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 55,970 psi | 88% | 2913 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 98% | 56,942 psi | 89% | 2877 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 88% | 54,665 psi | 86% | 2828 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,978 psi | 74% | 2740 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 53,766 psi | 84% | 2861 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 57,217 psi | 90% | 2953 fps | 97.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,128 psi | 55% | 1706 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 56,101 psi | 88% | 2835 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 54,505 psi | 85% | 2815 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 54,795 psi | 86% | 2802 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 90% | 55,013 psi | 86% | 2782 fps | 97.4% |
| IMR 4198 | <<locked>> | 82% | 54,911 psi | 86% | 2684 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 52,373 psi | 82% | 2789 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 96% | 54,389 psi | 85% | 2802 fps | 97.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 49,850 psi | 78% | 2799 fps | 99% |
| IMR 4895 | <<locked>> | 92% | 57,130 psi | 90% | 2894 fps | 100% |
| IMR 8208 XBR | <<locked>> | 88% | 56,782 psi | 89% | 2822 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 57,087 psi | 89% | 2808 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 57,261 psi | 90% | 2844 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 57,595 psi | 90% | 2802 fps | 100% |
| Lovex S062 | <<locked>> | 94% | 57,595 psi | 90% | 2844 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 56,840 psi | 89% | 2844 fps | 98.8% |
| Lovex S070ᴾ | <<locked>> | 100% | 54,085 psi | 85% | 2825 fps | 97.6% |
| Norma 201 | <<locked>> | 90% | 56,028 psi | 88% | 2812 fps | 100% |
| Norma 202 | <<locked>> | 90% | 56,768 psi | 89% | 2815 fps | 100% |
| Norma 203B | <<locked>> | 92% | 54,853 psi | 86% | 2848 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 51,851 psi | 81% | 2848 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 92% | 55,463 psi | 87% | 2874 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 50,981 psi | 80% | 2844 fps | 97.7% |
| Ramshot TAC | <<locked>> | 88% | 57,508 psi | 90% | 2844 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 88% | 56,927 psi | 89% | 2864 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 54,346 psi | 85% | 2776 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,302 psi | 55% | 1742 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 56,304 psi | 88% | 2802 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 57,319 psi | 90% | 2851 fps | 98.4% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 56,057 psi | 88% | 2927 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 55,637 psi | 87% | 2963 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 52,344 psi | 82% | 2881 fps | 99.1% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 52,663 psi | 83% | 2910 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 88% | 56,826 psi | 89% | 2792 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 56,521 psi | 89% | 2808 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 55,100 psi | 86% | 2841 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 55,738 psi | 87% | 2818 fps | 97% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 56,840 psi | 89% | 2844 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 90% | 57,261 psi | 90% | 2844 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 57,595 psi | 90% | 2844 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 54,085 psi | 85% | 2825 fps | 97.6% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 55,941 psi | 88% | 2776 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 57,406 psi | 90% | 2910 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 55,854 psi | 88% | 2749 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 55,608 psi | 87% | 2822 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 56,086 psi | 88% | 2844 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 54,694 psi | 86% | 2710 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 54,621 psi | 86% | 2707 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 57,696 psi | 90% | 2802 fps | 97.8% |
| Somchem S321 | <<locked>> | 84% | 54,418 psi | 85% | 2805 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 57,116 psi | 90% | 2749 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 55,013 psi | 86% | 2812 fps | 99.9% |
| Somchem S355 | <<locked>> | 96% | 55,564 psi | 87% | 2841 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 46,180 psi | 72% | 2795 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 54,505 psi | 85% | 2674 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 54,853 psi | 86% | 2694 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 56,159 psi | 88% | 2776 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 57,537 psi | 90% | 2795 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 57,421 psi | 90% | 2825 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 54,766 psi | 86% | 2851 fps | 99.4% |
| Vihtavuori N530 | <<locked>> | 88% | 57,522 psi | 90% | 2825 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 55,419 psi | 87% | 2792 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 53,432 psi | 84% | 2851 fps | 99.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,754 psi | 61% | 2664 fps | 97.5% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 55,390 psi | 87% | 2831 fps | 100% |
| Winchester 748 | <<locked>> | 88% | 57,159 psi | 90% | 2871 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 56,289 psi | 88% | 2917 fps | 97.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 32,039 psi | 50% | 2566 fps | 96.5% |
| Winchester StaBALL Match | <<locked>> | 90% | 56,130 psi | 88% | 2851 fps | 100% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 45,542 psi | 71% | 2585 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,835 psi | 78% | 2697 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,666 psi | 59% | 2500 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,947 psi | 70% | 2654 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 49,748 psi | 78% | 2684 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 35,636 psi | 56% | 2487 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 34,185 psi | 54% | 2516 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 54,085 psi | 85% | 2664 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 41,872 psi | 66% | 2608 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 80% | 35,781 psi | 56% | 2461 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,990 psi | 69% | 2618 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 80% | 43,903 psi | 69% | 2612 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 51,416 psi | 81% | 2822 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 38,000 psi | 60% | 2628 fps | 96.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,056 psi | 55% | 2480 fps | 97.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,488 psi | 81% | 2680 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,623 psi | 59% | 2539 fps | 97.1% |
| Alliant Reloder-16 | <<locked>> | 88% | 35,099 psi | 55% | 2536 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 30,081 psi | 47% | 2431 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 96% | 31,749 psi | 50% | 2480 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 98% | 37,173 psi | 58% | 2671 fps | 95.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 53,301 psi | 84% | 2661 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,089 psi | 64% | 2612 fps | 97.4% |
| Bofors RP3 | <<locked>> | 80% | 34,214 psi | 54% | 2474 fps | 97.6% |
| Bofors RP7 | <<locked>> | 94% | 49,081 psi | 77% | 2713 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,919 psi | 72% | 2612 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,569 psi | 67% | 2638 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 47,181 psi | 74% | 2782 fps | 99.1% |
| Hodgdon H322 | <<locked>> | 80% | 50,589 psi | 79% | 2720 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 51,285 psi | 80% | 2740 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 37,753 psi | 59% | 2536 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 94% | 45,745 psi | 72% | 2743 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 94% | 49,966 psi | 78% | 2766 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 42,221 psi | 66% | 2618 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 29,950 psi | 47% | 2379 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,159 psi | 60% | 2585 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 96% | 49,414 psi | 77% | 2828 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,976 psi | 41% | 1522 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,785 psi | 64% | 2575 fps | 98.7% |
| IMR 3031 | <<locked>> | 80% | 41,611 psi | 65% | 2615 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,507 psi | 59% | 2493 fps | 97.1% |
| IMR 4166 Enduron | <<locked>> | 84% | 45,585 psi | 71% | 2625 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 51,895 psi | 81% | 2644 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 46,209 psi | 72% | 2687 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 90% | 45,353 psi | 71% | 2648 fps | 95.2% |
| IMR 4831 | <<locked>> | 90% | 35,723 psi | 56% | 2533 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 38,551 psi | 60% | 2572 fps | 97.9% |
| IMR 8208 XBR | <<locked>> | 80% | 43,990 psi | 69% | 2618 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 80% | 49,472 psi | 78% | 2703 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 40,770 psi | 64% | 2589 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 42,424 psi | 66% | 2552 fps | 98.6% |
| Lovex S062 | <<locked>> | 80% | 37,246 psi | 58% | 2500 fps | 98.6% |
| Lovex S065 | <<locked>> | 88% | 39,088 psi | 61% | 2536 fps | 95.1% |
| Lovex S070 | <<locked>> | 94% | 44,672 psi | 70% | 2664 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 40,901 psi | 64% | 2562 fps | 99.2% |
| Norma 202 | <<locked>> | 80% | 41,350 psi | 65% | 2575 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,985 psi | 58% | 2530 fps | 97.4% |
| Norma URP | <<locked>> | 88% | 34,983 psi | 55% | 2526 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 36,564 psi | 57% | 2539 fps | 97.1% |
| Ramshot Hunter | <<locked>> | 94% | 41,640 psi | 65% | 2671 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 43,976 psi | 69% | 2625 fps | 96.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,221 psi | 68% | 2641 fps | 98.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,659 psi | 75% | 2671 fps | 99.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,208 psi | 41% | 1558 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 49,371 psi | 77% | 2703 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 43,990 psi | 69% | 2635 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,465 psi | 62% | 2641 fps | 97.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 32,068 psi | 50% | 2500 fps | 98.5% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 36,651 psi | 57% | 2592 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 39,900 psi | 63% | 2664 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 44,744 psi | 70% | 2608 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,827 psi | 61% | 2513 fps | 98.9% |
| Rottweil R 903 | <<locked>> | 80% | 32,198 psi | 50% | 2418 fps | 96.7% |
| Rottweil R 907 | <<locked>> | 94% | 49,081 psi | 77% | 2713 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 88% | 39,088 psi | 61% | 2536 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,770 psi | 64% | 2589 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 37,246 psi | 58% | 2500 fps | 98.6% |
| Shooters World SW4350 | <<locked>> | 94% | 44,672 psi | 70% | 2664 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 52,359 psi | 82% | 2723 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,518 psi | 53% | 2474 fps | 96.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 52,460 psi | 82% | 2703 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,916 psi | 66% | 2592 fps | 96.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,582 psi | 64% | 2579 fps | 98.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,627 psi | 67% | 2526 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,230 psi | 55% | 2392 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 44,092 psi | 69% | 2589 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 47,514 psi | 74% | 2700 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 42,047 psi | 66% | 2526 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,843 psi | 66% | 2595 fps | 98.4% |
| Somchem S355 | <<locked>> | 80% | 33,257 psi | 52% | 2431 fps | 96.8% |
| Somchem S365 | <<locked>> | 84% | 27,224 psi | 43% | 2356 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 48,283 psi | 76% | 2589 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,946 psi | 67% | 2523 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,334 psi | 60% | 2503 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,030 psi | 61% | 2510 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,560 psi | 49% | 2369 fps | 97.6% |
| Vihtavuori N160 | <<locked>> | 88% | 36,564 psi | 57% | 2526 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 43,976 psi | 69% | 2615 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 37,434 psi | 59% | 2497 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 35,824 psi | 56% | 2526 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 96% | 33,910 psi | 53% | 2556 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 30,182 psi | 47% | 2346 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 43,453 psi | 68% | 2661 fps | 99.9% |
| Winchester 760 | <<locked>> | 94% | 45,745 psi | 72% | 2743 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 98% | 30,037 psi | 47% | 2500 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,885 psi | 63% | 2582 fps | 98.6% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 106 powders for .300 RCM loaded with the .308 | 168gr | CutEdge MTAC. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,992 fps; across all powders the maximum-charge window runs from 1,706 fps to 2,992 fps. Accurate 4350 gives the best case fill at 100 %, and 106 of the 106 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 168.0 gr projectile in 0.308" calls for a 1:11.5 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.