Load Specifications
Bullet Manufacturer:Frontier Bullets
Bullet Weight:168 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:1:12.0
Load data in caliber .300 RCM with .308 | 168gr | Frontier PH HPFB bullet and 104 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and Alliant Reloder-17.
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% | 56,536 psi | 89% | 2733 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 54,737 psi | 86% | 2759 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 54,897 psi | 86% | 2756 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 56,811 psi | 89% | 2822 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 54,288 psi | 85% | 2749 fps | 96.5% |
| Accurate 4064 | <<locked>> | 92% | 54,621 psi | 86% | 2799 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 54,201 psi | 85% | 2877 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 88% | 55,608 psi | 87% | 2835 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 94% | 56,565 psi | 89% | 2831 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 54,636 psi | 86% | 2785 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 55,085 psi | 86% | 2759 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 56,333 psi | 88% | 2890 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 55,042 psi | 86% | 2949 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 56,362 psi | 88% | 2854 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 56,043 psi | 88% | 2736 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 56,956 psi | 89% | 2874 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 52,330 psi | 82% | 2881 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 98% | 57,261 psi | 90% | 2979 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,202 psi | 58% | 2612 fps | 97.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,292 psi | 65% | 2759 fps | 96.9% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 55,317 psi | 87% | 2848 fps | 99.6% |
| Bofors RP3 | <<locked>> | 94% | 57,014 psi | 89% | 2871 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 57,246 psi | 90% | 2835 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 86% | 56,391 psi | 88% | 2769 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 57,421 psi | 90% | 2864 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 55,811 psi | 87% | 2913 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 82% | 55,274 psi | 87% | 2779 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 56,188 psi | 88% | 2805 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 54,505 psi | 85% | 2831 fps | 99.1% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 57,522 psi | 90% | 2930 fps | 98% |
| Hodgdon H4350 | <<locked>> | 96% | 54,708 psi | 86% | 2838 fps | 96.2% |
| Hodgdon H4895 | <<locked>> | 88% | 56,202 psi | 88% | 2844 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,472 psi | 76% | 2759 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 55,274 psi | 87% | 2874 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 54,563 psi | 86% | 2907 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,259 psi | 55% | 1706 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 57,464 psi | 90% | 2848 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 55,854 psi | 88% | 2825 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,912 psi | 88% | 2815 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 90% | 56,362 psi | 88% | 2799 fps | 97.7% |
| IMR 4198 | <<locked>> | 82% | 55,898 psi | 88% | 2690 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 53,751 psi | 84% | 2805 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 96% | 55,709 psi | 87% | 2815 fps | 97.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,198 psi | 80% | 2815 fps | 99.2% |
| IMR 4895 | <<locked>> | 90% | 54,810 psi | 86% | 2854 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 86% | 54,636 psi | 86% | 2785 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 54,621 psi | 86% | 2769 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 55,042 psi | 86% | 2808 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 55,376 psi | 87% | 2762 fps | 99.9% |
| Lovex S062 | <<locked>> | 92% | 55,550 psi | 87% | 2808 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 54,868 psi | 86% | 2808 fps | 98.6% |
| Lovex S070ᴾ | <<locked>> | 100% | 55,709 psi | 87% | 2841 fps | 97.8% |
| Norma 201 | <<locked>> | 90% | 57,740 psi | 90% | 2828 fps | 100% |
| Norma 202 | <<locked>> | 88% | 54,694 psi | 86% | 2782 fps | 100% |
| Norma 203B | <<locked>> | 92% | 56,115 psi | 88% | 2861 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 53,432 psi | 84% | 2864 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 92% | 56,681 psi | 89% | 2887 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 52,185 psi | 82% | 2858 fps | 97.9% |
| Ramshot TAC | <<locked>> | 86% | 54,810 psi | 86% | 2802 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 86% | 54,273 psi | 85% | 2822 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 55,448 psi | 87% | 2785 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,752 psi | 56% | 1749 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 57,740 psi | 90% | 2818 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 54,911 psi | 86% | 2812 fps | 98% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 57,638 psi | 90% | 2946 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 56,840 psi | 89% | 2976 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 53,708 psi | 84% | 2897 fps | 99.2% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 54,070 psi | 85% | 2930 fps | 99.1% |
| Rottweil R 901 | <<locked>> | 86% | 55,448 psi | 87% | 2766 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 54,636 psi | 86% | 2776 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 56,594 psi | 89% | 2858 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 57,246 psi | 90% | 2835 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 98% | 54,868 psi | 86% | 2808 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 88% | 55,042 psi | 86% | 2808 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,550 psi | 87% | 2808 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 55,709 psi | 87% | 2841 fps | 97.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 57,392 psi | 90% | 2789 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 54,955 psi | 86% | 2871 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 56,971 psi | 89% | 2759 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 56,913 psi | 89% | 2835 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 57,522 psi | 90% | 2858 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 55,840 psi | 88% | 2720 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 56,043 psi | 88% | 2717 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 55,434 psi | 87% | 2766 fps | 97.5% |
| Somchem S321 | <<locked>> | 84% | 55,956 psi | 88% | 2822 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,100 psi | 86% | 2717 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 56,463 psi | 88% | 2825 fps | 99.9% |
| Somchem S355 | <<locked>> | 96% | 56,913 psi | 89% | 2854 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,747 psi | 75% | 2815 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 55,651 psi | 87% | 2684 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 55,999 psi | 88% | 2703 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 54,418 psi | 85% | 2746 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 55,390 psi | 87% | 2762 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,926 psi | 86% | 2785 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 55,985 psi | 88% | 2861 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 86% | 54,998 psi | 86% | 2782 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 56,942 psi | 89% | 2805 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 55,013 psi | 86% | 2867 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,437 psi | 63% | 2690 fps | 97.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 56,768 psi | 89% | 2844 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 54,679 psi | 86% | 2831 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 57,522 psi | 90% | 2930 fps | 98% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,228 psi | 52% | 2595 fps | 97.2% |
| Winchester StaBALL Match | <<locked>> | 90% | 57,348 psi | 90% | 2864 fps | 100% |
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 2015 | <<locked>> | 80% | 46,949 psi | 74% | 2598 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 51,329 psi | 80% | 2710 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,523 psi | 62% | 2523 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,369 psi | 73% | 2671 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 47,776 psi | 75% | 2644 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 37,362 psi | 59% | 2513 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 35,853 psi | 56% | 2543 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 43,294 psi | 68% | 2628 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 80% | 36,811 psi | 58% | 2477 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,353 psi | 71% | 2638 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 45,252 psi | 71% | 2625 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 53,026 psi | 83% | 2838 fps | 100% |
| Alliant Power Pro 2000-MR | 50.1 gr | 80% | 39,059 psi | 61% | 2648 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,289 psi | 57% | 2500 fps | 98.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 52,779 psi | 83% | 2690 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,073 psi | 61% | 2562 fps | 97.4% |
| Alliant Reloder-16 | <<locked>> | 88% | 36,143 psi | 57% | 2556 fps | 95.8% |
| Alliant Reloder-17 | 49.4 gr | 80% | 31,328 psi | 49% | 2461 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 31,067 psi | 49% | 2454 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 98% | 38,653 psi | 61% | 2700 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,221 psi | 66% | 2625 fps | 97.7% |
| Bofors RP3 | <<locked>> | 80% | 35,868 psi | 56% | 2503 fps | 98.1% |
| Bofors RP7 | <<locked>> | 92% | 47,442 psi | 74% | 2677 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,992 psi | 74% | 2625 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,888 psi | 69% | 2654 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,370 psi | 76% | 2795 fps | 99.2% |
| Hodgdon H322 | <<locked>> | 80% | 51,735 psi | 81% | 2730 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 52,736 psi | 83% | 2756 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,753 psi | 58% | 2503 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 92% | 43,961 psi | 69% | 2703 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 94% | 51,314 psi | 80% | 2782 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 43,714 psi | 69% | 2641 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 31,096 psi | 49% | 2398 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,363 psi | 62% | 2605 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 94% | 47,340 psi | 74% | 2782 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,368 psi | 41% | 1526 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,814 psi | 66% | 2589 fps | 98.9% |
| IMR 3031 | <<locked>> | 80% | 43,192 psi | 68% | 2635 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,638 psi | 61% | 2513 fps | 97.4% |
| IMR 4166 Enduron | <<locked>> | 84% | 46,630 psi | 73% | 2638 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 52,881 psi | 83% | 2651 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 47,572 psi | 75% | 2703 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 90% | 46,383 psi | 73% | 2661 fps | 95.5% |
| IMR 4831 | <<locked>> | 88% | 34,621 psi | 54% | 2500 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 40,001 psi | 63% | 2592 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 80% | 45,353 psi | 71% | 2638 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 80% | 51,198 psi | 80% | 2720 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,192 psi | 66% | 2608 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,468 psi | 68% | 2566 fps | 98.8% |
| Lovex S062 | <<locked>> | 80% | 38,508 psi | 60% | 2516 fps | 98.9% |
| Lovex S065 | <<locked>> | 88% | 40,364 psi | 63% | 2552 fps | 95.5% |
| Lovex S070 | <<locked>> | 92% | 43,308 psi | 68% | 2631 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 42,279 psi | 66% | 2579 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 42,583 psi | 67% | 2592 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,464 psi | 60% | 2552 fps | 97.8% |
| Norma URP | <<locked>> | 88% | 36,172 psi | 57% | 2543 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 37,724 psi | 59% | 2559 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 94% | 43,018 psi | 67% | 2694 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 45,063 psi | 71% | 2635 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,628 psi | 70% | 2661 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,805 psi | 76% | 2684 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,672 psi | 42% | 1565 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,763 psi | 80% | 2717 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,395 psi | 66% | 2595 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,741 psi | 64% | 2661 fps | 97.8% |
| ReloadSwiss RS 60 | 49.4 gr | 80% | 33,373 psi | 52% | 2530 fps | 98.9% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 35,534 psi | 56% | 2556 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 38,464 psi | 60% | 2625 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 46,296 psi | 73% | 2625 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,379 psi | 63% | 2536 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 80% | 33,591 psi | 53% | 2444 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 92% | 47,442 psi | 74% | 2677 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 88% | 40,364 psi | 63% | 2552 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,192 psi | 66% | 2608 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,508 psi | 60% | 2516 fps | 98.9% |
| Shooters World SW4350 | <<locked>> | 92% | 43,308 psi | 68% | 2631 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 53,519 psi | 84% | 2736 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,635 psi | 54% | 2493 fps | 96.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 53,606 psi | 84% | 2713 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,410 psi | 68% | 2612 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,698 psi | 65% | 2595 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,787 psi | 69% | 2539 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,303 psi | 57% | 2405 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 45,368 psi | 71% | 2605 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 48,776 psi | 76% | 2713 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,279 psi | 68% | 2539 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,975 psi | 67% | 2608 fps | 98.6% |
| Somchem S355 | <<locked>> | 80% | 34,548 psi | 54% | 2451 fps | 97.2% |
| Somchem S365 | <<locked>> | 82% | 26,760 psi | 42% | 2333 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 49,414 psi | 77% | 2598 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,048 psi | 69% | 2533 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,639 psi | 62% | 2520 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,205 psi | 63% | 2523 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,779 psi | 51% | 2388 fps | 98% |
| Vihtavuori N160 | <<locked>> | 86% | 35,505 psi | 56% | 2493 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 45,382 psi | 71% | 2631 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 38,827 psi | 61% | 2516 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 88% | 37,260 psi | 58% | 2549 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 94% | 33,199 psi | 52% | 2526 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 31,212 psi | 49% | 2365 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 44,904 psi | 70% | 2677 fps | 99.9% |
| Winchester 760 | <<locked>> | 92% | 44,222 psi | 69% | 2710 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 98% | 31,198 psi | 49% | 2530 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,060 psi | 64% | 2598 fps | 98.8% |
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 104 powders for .300 RCM loaded with the .308 | 168gr | Frontier PH HPFB. Alliant Reloder-17 delivers the highest muzzle velocity at 2,979 fps; across all powders the maximum-charge window runs from 1,706 fps to 2,979 fps. Accurate 4350 gives the best case fill at 100 %, and 104 of the 104 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 168.0 gr projectile in 0.308" calls for a 1:12.0 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .300 RCM with the .308 | 168gr | Frontier PH HPFB they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.