Load Specifications
Bullet Manufacturer:Reichenberg
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:1:12.5
Load data in caliber .300 RCM with .308 | 168gr | Reichenberg HDB Universal 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, Alliant Reloder-17 and ReloadSwiss RS 60.
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% | 56,173 psi | 88% | 2743 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 54,476 psi | 85% | 2769 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 54,259 psi | 85% | 2762 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 56,898 psi | 89% | 2838 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 54,288 psi | 85% | 2766 fps | 96.7% |
| Accurate 4064 | <<locked>> | 94% | 57,711 psi | 90% | 2854 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 54,317 psi | 85% | 2894 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 88% | 55,579 psi | 87% | 2848 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 94% | 56,507 psi | 89% | 2844 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 54,375 psi | 85% | 2799 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 55,274 psi | 87% | 2776 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 56,231 psi | 88% | 2904 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 55,245 psi | 87% | 2966 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 56,173 psi | 88% | 2864 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 55,927 psi | 88% | 2749 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 57,101 psi | 89% | 2890 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 52,373 psi | 82% | 2897 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 98% | 57,217 psi | 90% | 2989 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,115 psi | 58% | 2625 fps | 98.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,278 psi | 65% | 2776 fps | 97.1% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 55,434 psi | 87% | 2864 fps | 99.6% |
| Bofors RP3 | <<locked>> | 94% | 56,971 psi | 89% | 2884 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 57,232 psi | 90% | 2854 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 86% | 56,449 psi | 88% | 2785 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 57,493 psi | 90% | 2881 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 55,825 psi | 87% | 2927 fps | 99.9% |
| Hodgdon H322 | <<locked>> | 82% | 55,187 psi | 86% | 2792 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 56,202 psi | 88% | 2818 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 54,491 psi | 85% | 2844 fps | 99.2% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 57,479 psi | 90% | 2946 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 96% | 54,795 psi | 86% | 2854 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 88% | 56,115 psi | 88% | 2861 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,486 psi | 76% | 2772 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 55,463 psi | 87% | 2890 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 54,897 psi | 86% | 2930 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,070 psi | 55% | 1716 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 57,493 psi | 90% | 2861 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 55,941 psi | 88% | 2838 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,883 psi | 88% | 2828 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 90% | 56,260 psi | 88% | 2812 fps | 97.8% |
| IMR 4198 | <<locked>> | 82% | 56,202 psi | 88% | 2710 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 53,751 psi | 84% | 2822 fps | 96.9% |
| IMR 4451 Enduron | <<locked>> | 96% | 55,811 psi | 87% | 2835 fps | 97.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,372 psi | 81% | 2831 fps | 99.3% |
| IMR 4895 | <<locked>> | 90% | 54,969 psi | 86% | 2871 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 54,375 psi | 85% | 2799 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 54,360 psi | 85% | 2779 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 55,056 psi | 86% | 2825 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 55,143 psi | 86% | 2776 fps | 99.9% |
| Lovex S062 | <<locked>> | 92% | 55,666 psi | 87% | 2825 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 54,766 psi | 86% | 2825 fps | 98.7% |
| Lovex S070ᴾ | <<locked>> | 100% | 55,564 psi | 87% | 2854 fps | 98% |
| Norma 201 | <<locked>> | 90% | 57,566 psi | 90% | 2841 fps | 100% |
| Norma 202 | <<locked>> | 88% | 54,679 psi | 86% | 2795 fps | 100% |
| Norma 203B | <<locked>> | 92% | 56,260 psi | 88% | 2877 fps | 100% |
| Norma URPᴾ | <<locked>> | 100% | 53,403 psi | 84% | 2881 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 92% | 57,087 psi | 89% | 2907 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 52,315 psi | 82% | 2874 fps | 98.1% |
| Ramshot TAC | <<locked>> | 86% | 54,926 psi | 86% | 2818 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 86% | 54,418 psi | 85% | 2835 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 55,405 psi | 87% | 2802 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,491 psi | 56% | 1755 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 57,522 psi | 90% | 2828 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 54,911 psi | 86% | 2828 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 57,551 psi | 90% | 2959 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 57,217 psi | 90% | 2992 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 53,824 psi | 84% | 2913 fps | 99.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 54,099 psi | 85% | 2946 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 86% | 54,897 psi | 86% | 2772 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 54,404 psi | 85% | 2789 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 56,478 psi | 89% | 2871 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 57,232 psi | 90% | 2854 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 98% | 54,766 psi | 86% | 2825 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 88% | 55,056 psi | 86% | 2825 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,666 psi | 87% | 2825 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 55,564 psi | 87% | 2854 fps | 98% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 57,450 psi | 90% | 2805 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 55,013 psi | 86% | 2884 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 57,072 psi | 89% | 2772 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 56,898 psi | 89% | 2851 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 57,406 psi | 90% | 2871 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 55,927 psi | 88% | 2736 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 56,014 psi | 88% | 2733 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 55,303 psi | 87% | 2779 fps | 97.6% |
| Somchem S321 | <<locked>> | 84% | 55,796 psi | 87% | 2835 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,027 psi | 86% | 2730 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 56,565 psi | 89% | 2841 fps | 100% |
| Somchem S355 | <<locked>> | 96% | 56,942 psi | 89% | 2867 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,674 psi | 75% | 2828 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 55,535 psi | 87% | 2697 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 56,130 psi | 88% | 2720 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 57,479 psi | 90% | 2795 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 55,317 psi | 87% | 2776 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,984 psi | 86% | 2799 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 56,304 psi | 88% | 2881 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 86% | 54,969 psi | 86% | 2799 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 57,000 psi | 89% | 2818 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 55,143 psi | 86% | 2884 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,161 psi | 63% | 2700 fps | 98% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 56,840 psi | 89% | 2861 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 54,969 psi | 86% | 2848 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 54,085 psi | 85% | 2894 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 32,924 psi | 52% | 2605 fps | 97.3% |
| Winchester StaBALL Match | <<locked>> | 90% | 57,464 psi | 90% | 2881 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% | 46,644 psi | 73% | 2612 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 50,807 psi | 80% | 2720 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,740 psi | 61% | 2523 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,166 psi | 72% | 2680 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 47,543 psi | 75% | 2657 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 36,651 psi | 57% | 2516 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 35,462 psi | 56% | 2549 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 42,786 psi | 67% | 2635 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 80% | 36,405 psi | 57% | 2484 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,933 psi | 70% | 2644 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 45,136 psi | 71% | 2635 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 52,605 psi | 82% | 2848 fps | 100% |
| Alliant Power Pro 2000-MR | 51.2 gr | 80% | 38,972 psi | 61% | 2661 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,940 psi | 56% | 2507 fps | 98.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 52,388 psi | 82% | 2700 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,522 psi | 60% | 2566 fps | 97.4% |
| Alliant Reloder-16 | <<locked>> | 86% | 33,692 psi | 53% | 2510 fps | 95% |
| Alliant Reloder-17 | 50.4 gr | 80% | 30,908 psi | 48% | 2464 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 30,618 psi | 48% | 2457 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 98% | 38,392 psi | 60% | 2710 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,105 psi | 66% | 2638 fps | 97.8% |
| Bofors RP3 | <<locked>> | 80% | 35,331 psi | 55% | 2507 fps | 98.1% |
| Bofors RP7 | <<locked>> | 92% | 47,137 psi | 74% | 2690 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,833 psi | 73% | 2638 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,685 psi | 68% | 2664 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,399 psi | 76% | 2808 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 80% | 51,663 psi | 81% | 2743 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 52,489 psi | 82% | 2766 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,289 psi | 57% | 2507 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 92% | 43,918 psi | 69% | 2717 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 94% | 51,401 psi | 81% | 2799 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 43,192 psi | 68% | 2644 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 30,792 psi | 48% | 2408 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,262 psi | 62% | 2615 fps | 98.9% |
| Hodgdon Superformance | <<locked>> | 94% | 47,340 psi | 74% | 2802 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,121 psi | 41% | 1532 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,655 psi | 65% | 2602 fps | 98.9% |
| IMR 3031 | <<locked>> | 80% | 42,786 psi | 67% | 2641 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,203 psi | 60% | 2516 fps | 97.4% |
| IMR 4166 Enduron | <<locked>> | 82% | 43,511 psi | 68% | 2595 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 52,881 psi | 83% | 2664 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 47,282 psi | 74% | 2713 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 90% | 46,253 psi | 72% | 2674 fps | 95.7% |
| IMR 4831 | <<locked>> | 88% | 34,301 psi | 54% | 2507 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 39,465 psi | 62% | 2598 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 80% | 44,933 psi | 70% | 2644 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 80% | 50,647 psi | 79% | 2726 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 41,727 psi | 65% | 2615 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,091 psi | 68% | 2575 fps | 98.8% |
| Lovex S062 | <<locked>> | 80% | 37,927 psi | 59% | 2523 fps | 98.9% |
| Lovex S065 | <<locked>> | 88% | 40,045 psi | 63% | 2562 fps | 95.6% |
| Lovex S070 | <<locked>> | 92% | 43,178 psi | 68% | 2644 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 41,858 psi | 66% | 2589 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 42,322 psi | 66% | 2602 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,913 psi | 59% | 2552 fps | 97.8% |
| Norma URP | <<locked>> | 88% | 35,926 psi | 56% | 2556 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 37,565 psi | 59% | 2569 fps | 97.5% |
| Ramshot Hunter | <<locked>> | 92% | 40,248 psi | 63% | 2651 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 44,933 psi | 70% | 2648 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,280 psi | 69% | 2667 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,704 psi | 76% | 2697 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,368 psi | 41% | 1568 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,618 psi | 79% | 2730 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,148 psi | 66% | 2605 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,466 psi | 63% | 2667 fps | 97.9% |
| ReloadSwiss RS 60 | 50.4 gr | 80% | 32,938 psi | 52% | 2533 fps | 98.9% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 35,331 psi | 55% | 2569 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 38,290 psi | 60% | 2635 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 45,542 psi | 71% | 2628 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,769 psi | 62% | 2539 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 80% | 33,069 psi | 52% | 2448 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 92% | 47,137 psi | 74% | 2690 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 88% | 40,045 psi | 63% | 2562 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,727 psi | 65% | 2615 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 37,927 psi | 59% | 2523 fps | 98.9% |
| Shooters World SW4350 | <<locked>> | 92% | 43,178 psi | 68% | 2644 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 53,534 psi | 84% | 2749 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,272 psi | 54% | 2500 fps | 96.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 53,417 psi | 84% | 2726 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,946 psi | 67% | 2618 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,437 psi | 65% | 2605 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,381 psi | 68% | 2546 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,926 psi | 56% | 2415 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 45,281 psi | 71% | 2618 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 48,631 psi | 76% | 2726 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 42,975 psi | 67% | 2549 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,873 psi | 67% | 2621 fps | 98.7% |
| Somchem S355 | <<locked>> | 80% | 34,127 psi | 53% | 2457 fps | 97.2% |
| Somchem S365 | <<locked>> | 82% | 26,237 psi | 41% | 2333 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 49,110 psi | 77% | 2608 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,743 psi | 69% | 2543 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,189 psi | 61% | 2526 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,958 psi | 63% | 2533 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,387 psi | 51% | 2395 fps | 98% |
| Vihtavuori N160 | <<locked>> | 86% | 35,114 psi | 55% | 2500 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 45,150 psi | 71% | 2644 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 38,464 psi | 60% | 2523 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 88% | 36,941 psi | 58% | 2556 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 94% | 32,692 psi | 51% | 2530 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 30,850 psi | 48% | 2372 fps | 96% |
| Winchester 748 | <<locked>> | 80% | 44,672 psi | 70% | 2687 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 44,164 psi | 69% | 2723 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 98% | 30,864 psi | 48% | 2539 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,930 psi | 64% | 2608 fps | 98.9% |
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 | Reichenberg HDB Universal. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,992 fps; across all powders the maximum-charge window runs from 1,716 fps to 2,992 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 1:12.5 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. Alliant Power Pro 2000-MR, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .300 RCM with the .308 | 168gr | Reichenberg HDB Universal 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.