Load Specifications
Bullet:.308 | 181gr | Brenneke TUG
Bullet Manufacturer:Brenneke
Bullet Weight:181 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:1:13.5
Load data in caliber .300 RCM with .308 | 181gr | Brenneke TUG bullet and 102 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and ReloadSwiss RS 70.
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 2015 | <<locked>> | 82% | 54,607 psi | 86% | 2621 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 57,276 psi | 90% | 2694 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,998 psi | 86% | 2713 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,869 psi | 88% | 2707 fps | 97.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,077 psi | 69% | 2615 fps | 97.5% |
| Accurate 4064 | <<locked>> | 90% | 57,305 psi | 90% | 2743 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,072 psi | 89% | 2835 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 57,101 psi | 89% | 2772 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,578 psi | 86% | 2726 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 51,590 psi | 81% | 2759 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,043 psi | 88% | 2723 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,276 psi | 90% | 2690 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,942 psi | 89% | 2897 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 51,459 psi | 81% | 2759 fps | 96.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 54,998 psi | 86% | 2749 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,332 psi | 87% | 2769 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,549 psi | 85% | 2838 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,753 psi | 87% | 2871 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,691 psi | 79% | 2753 fps | 96.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,698 psi | 65% | 2641 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,036 psi | 74% | 2812 fps | 99.3% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,029 psi | 89% | 2792 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 55,724 psi | 87% | 2766 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,347 psi | 87% | 2736 fps | 98.1% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,537 psi | 90% | 2703 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,477 psi | 87% | 2753 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,565 psi | 89% | 2782 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 96% | 56,289 psi | 88% | 2838 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 94% | 56,579 psi | 89% | 2795 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 86% | 57,682 psi | 90% | 2782 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,491 psi | 85% | 2766 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,363 psi | 90% | 2818 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,710 psi | 89% | 2874 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,766 psi | 56% | 1670 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,245 psi | 87% | 2733 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,578 psi | 86% | 2717 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,493 psi | 90% | 2756 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,537 psi | 90% | 2746 fps | 98.8% |
| IMR 4350 | <<locked>> | 98% | 55,724 psi | 87% | 2766 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,203 psi | 90% | 2769 fps | 98.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 57,653 psi | 90% | 2825 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 56,695 psi | 89% | 2795 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,043 psi | 88% | 2723 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,188 psi | 90% | 2749 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,434 psi | 88% | 2703 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,711 psi | 90% | 2756 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,637 psi | 89% | 2759 fps | 99.5% |
| Lovex S070 | <<locked>> | 96% | 54,404 psi | 85% | 2749 fps | 98.6% |
| Norma 201 | <<locked>> | 86% | 55,956 psi | 88% | 2720 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,260 psi | 88% | 2717 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,505 psi | 85% | 2756 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,536 psi | 89% | 2818 fps | 97.2% |
| Norma MRPᴾ | <<locked>> | 100% | 46,644 psi | 73% | 2762 fps | 97% |
| Norma URP | <<locked>> | 98% | 55,985 psi | 88% | 2822 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 55,042 psi | 86% | 2782 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 54,694 psi | 86% | 2822 fps | 99.2% |
| Ramshot TAC | <<locked>> | 84% | 56,159 psi | 88% | 2746 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,941 psi | 88% | 2762 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,608 psi | 89% | 2726 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,303 psi | 57% | 1709 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,637 psi | 89% | 2766 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,985 psi | 88% | 2835 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,434 psi | 87% | 2867 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,797 psi | 89% | 2858 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,217 psi | 88% | 2890 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 84% | 56,739 psi | 89% | 2697 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,391 psi | 88% | 2717 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,593 psi | 87% | 2759 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,371 psi | 77% | 2733 fps | 96.2% |
| Rottweil R 907 | <<locked>> | 94% | 55,347 psi | 87% | 2736 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,637 psi | 89% | 2759 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,188 psi | 90% | 2749 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,711 psi | 90% | 2756 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,404 psi | 85% | 2749 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,116 psi | 90% | 2815 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,694 psi | 86% | 2726 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,419 psi | 87% | 2746 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,043 psi | 89% | 2654 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,479 psi | 90% | 2651 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,174 psi | 90% | 2720 fps | 98.7% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 48,892 psi | 77% | 2726 fps | 96.1% |
| Somchem S321 | <<locked>> | 82% | 57,348 psi | 90% | 2756 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,695 psi | 89% | 2654 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,404 psi | 85% | 2717 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,825 psi | 87% | 2756 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,041 psi | 85% | 2822 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,038 psi | 78% | 2713 fps | 97.2% |
| Vihtavuori N130 | <<locked>> | 82% | 56,724 psi | 89% | 2612 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,319 psi | 90% | 2635 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,289 psi | 88% | 2677 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,811 psi | 89% | 2694 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,174 psi | 90% | 2733 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,824 psi | 86% | 2766 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 84% | 56,391 psi | 88% | 2723 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,100 psi | 86% | 2697 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 57,638 psi | 90% | 2825 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,296 psi | 73% | 2717 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,882 psi | 86% | 2743 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,768 psi | 89% | 2772 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,289 psi | 88% | 2838 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,507 psi | 59% | 2664 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,564 psi | 87% | 2756 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% | 51,300 psi | 80% | 2579 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,222 psi | 69% | 2516 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,401 psi | 81% | 2661 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,062 psi | 67% | 2493 fps | 95.2% |
| Accurate 3100 | <<locked>> | 94% | 35,853 psi | 56% | 2454 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 41,814 psi | 66% | 2516 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,777 psi | 48% | 2349 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 47,253 psi | 74% | 2621 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 40,277 psi | 63% | 2480 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 98% | 48,399 psi | 76% | 2703 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,327 psi | 77% | 2625 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,169 psi | 79% | 2602 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,265 psi | 68% | 2667 fps | 99.1% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 48,080 psi | 75% | 2703 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,059 psi | 63% | 2503 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,902 psi | 67% | 2566 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,227 psi | 49% | 2365 fps | 95.2% |
| Alliant Reloder-17 | 51.3 gr | 80% | 34,650 psi | 54% | 2484 fps | 98.3% |
| Alliant Reloder-19 | <<locked>> | 98% | 47,398 psi | 74% | 2694 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 88% | 28,906 psi | 45% | 2333 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 90% | 33,069 psi | 52% | 2500 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,775 psi | 73% | 2635 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 40,016 psi | 63% | 2513 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 43,207 psi | 68% | 2533 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,010 psi | 80% | 2612 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,515 psi | 76% | 2651 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,654 psi | 64% | 2513 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 86% | 40,408 psi | 63% | 2562 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 88% | 46,818 psi | 73% | 2638 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 47,732 psi | 75% | 2635 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,572 psi | 45% | 2267 fps | 96.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,947 psi | 69% | 2612 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 42,670 psi | 67% | 2631 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,701 psi | 42% | 1490 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,876 psi | 72% | 2589 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 47,863 psi | 75% | 2621 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,322 psi | 66% | 2513 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,672 psi | 70% | 2533 fps | 96.5% |
| IMR 4350 | <<locked>> | 90% | 43,613 psi | 68% | 2566 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,769 psi | 62% | 2467 fps | 95% |
| IMR 4831 | <<locked>> | 82% | 32,010 psi | 50% | 2365 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 43,990 psi | 69% | 2595 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 49,327 psi | 77% | 2625 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,775 psi | 73% | 2602 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,050 psi | 74% | 2559 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 42,322 psi | 66% | 2516 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 34,882 psi | 55% | 2369 fps | 95% |
| Lovex S070 | <<locked>> | 86% | 39,769 psi | 62% | 2493 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 46,456 psi | 73% | 2575 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,688 psi | 73% | 2579 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,293 psi | 66% | 2552 fps | 99.3% |
| Norma 204 | <<locked>> | 94% | 49,472 psi | 78% | 2707 fps | 95.7% |
| Norma MRP | <<locked>> | 96% | 40,886 psi | 64% | 2648 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 31,198 psi | 49% | 2352 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 41,989 psi | 66% | 2569 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 36,941 psi | 58% | 2497 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 49,385 psi | 77% | 2641 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,052 psi | 77% | 2661 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,113 psi | 83% | 2674 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,064 psi | 42% | 1526 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,930 psi | 64% | 2497 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,542 psi | 71% | 2667 fps | 99.4% |
| ReloadSwiss RS 60 | 51.3 gr | 80% | 36,869 psi | 58% | 2546 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 32,837 psi | 51% | 2421 fps | 95.5% |
| ReloadSwiss RS 70 | 54.7 gr | 84% | 34,882 psi | 55% | 2477 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 50,502 psi | 79% | 2608 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,251 psi | 69% | 2533 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 37,579 psi | 59% | 2457 fps | 99% |
| Rottweil R 905 | <<locked>> | 98% | 46,267 psi | 73% | 2677 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 86% | 43,207 psi | 68% | 2533 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,882 psi | 55% | 2369 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,775 psi | 73% | 2602 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,322 psi | 66% | 2516 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 39,769 psi | 62% | 2493 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,464 psi | 60% | 2507 fps | 98.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,805 psi | 75% | 2618 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,745 psi | 72% | 2595 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,616 psi | 75% | 2523 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,842 psi | 62% | 2398 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,307 psi | 65% | 2464 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 45,832 psi | 72% | 2674 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 53,722 psi | 84% | 2707 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 47,282 psi | 74% | 2523 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,587 psi | 75% | 2615 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 38,363 psi | 60% | 2461 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 28,021 psi | 44% | 2310 fps | 97.4% |
| Somchem S385 | <<locked>> | 96% | 44,077 psi | 69% | 2612 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 53,606 psi | 84% | 2572 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,051 psi | 75% | 2513 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,961 psi | 69% | 2507 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,295 psi | 69% | 2516 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,477 psi | 57% | 2398 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 32,460 psi | 51% | 2356 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 49,690 psi | 78% | 2625 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,714 psi | 67% | 2510 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,039 psi | 50% | 2356 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 86% | 29,240 psi | 46% | 2352 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,285 psi | 51% | 2336 fps | 97.7% |
| Winchester 748 | <<locked>> | 80% | 49,530 psi | 78% | 2667 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 40,408 psi | 63% | 2562 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,064 psi | 42% | 2349 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,426 psi | 71% | 2602 fps | 99.9% |
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 102 powders for .300 RCM loaded with the .308 | 181gr | Brenneke TUG. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,897 fps; across all powders the maximum-charge window runs from 1,670 fps to 2,897 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 (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 181.0 gr projectile in 0.308" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint 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-17, ReloadSwiss RS 60, ReloadSwiss RS 70 rank at the top here: for .300 RCM with the .308 | 181gr | Brenneke TUG 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.