Load Specifications
Bullet:.308 | 165gr | SUS-TAC HP
Bullet Manufacturer:SUS-TAC
Bullet Weight:165 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:1:11.0
Load data in caliber .300 RCM with .308 | 165gr | SUS-TAC HP bullet and 105 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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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% | 54,563 psi | 86% | 2726 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 56,753 psi | 89% | 2802 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 56,246 psi | 88% | 2792 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 54,824 psi | 86% | 2815 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 55,970 psi | 88% | 2785 fps | 96.4% |
| Accurate 4064 | <<locked>> | 94% | 55,927 psi | 88% | 2835 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 51,605 psi | 81% | 2854 fps | 98.9% |
| Accurate LT-30 | <<locked>> | 82% | 56,797 psi | 89% | 2710 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 57,217 psi | 90% | 2740 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 57,130 psi | 90% | 2874 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 94% | 54,621 psi | 86% | 2818 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 88% | 56,115 psi | 88% | 2822 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 56,710 psi | 89% | 2802 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 54,505 psi | 85% | 2877 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 56,724 psi | 89% | 2989 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 57,609 psi | 90% | 2887 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 57,682 psi | 90% | 2776 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 54,839 psi | 86% | 2858 fps | 99.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,241 psi | 79% | 2858 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 98% | 54,969 psi | 86% | 2959 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,766 psi | 56% | 2589 fps | 97% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 56,347 psi | 88% | 2713 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 56,884 psi | 89% | 2884 fps | 99.5% |
| Bofors RP3 | <<locked>> | 94% | 54,810 psi | 86% | 2858 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 55,056 psi | 86% | 2815 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 86% | 54,679 psi | 86% | 2759 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 55,274 psi | 87% | 2854 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 57,624 psi | 90% | 2956 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 84% | 56,985 psi | 89% | 2822 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 54,331 psi | 85% | 2795 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 56,144 psi | 88% | 2867 fps | 99.1% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 54,868 psi | 86% | 2907 fps | 97.3% |
| Hodgdon H4350 | <<locked>> | 98% | 56,115 psi | 88% | 2871 fps | 96% |
| Hodgdon H4895 | <<locked>> | 90% | 57,696 psi | 90% | 2884 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,572 psi | 73% | 2743 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 56,797 psi | 89% | 2913 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 56,391 psi | 88% | 2946 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,157 psi | 55% | 1713 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 55,405 psi | 87% | 2831 fps | 99.9% |
| IMR 3031 | <<locked>> | 90% | 57,174 psi | 90% | 2864 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 57,551 psi | 90% | 2851 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 90% | 54,491 psi | 85% | 2779 fps | 97% |
| IMR 4198 | <<locked>> | 84% | 57,580 psi | 90% | 2730 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 51,663 psi | 81% | 2785 fps | 95.9% |
| IMR 4451 Enduron | <<locked>> | 98% | 57,145 psi | 90% | 2851 fps | 97.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 49,168 psi | 77% | 2795 fps | 98.7% |
| IMR 4895 | <<locked>> | 92% | 56,202 psi | 88% | 2890 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 88% | 56,115 psi | 88% | 2822 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 56,681 psi | 89% | 2815 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 56,768 psi | 89% | 2851 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 56,898 psi | 89% | 2799 fps | 99.9% |
| Lovex S062 | <<locked>> | 94% | 57,116 psi | 90% | 2848 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 56,246 psi | 88% | 2841 fps | 98.5% |
| Lovex S070ᴾ | <<locked>> | 100% | 53,490 psi | 84% | 2822 fps | 97.1% |
| Norma 201 | <<locked>> | 90% | 55,883 psi | 88% | 2818 fps | 100% |
| Norma 202 | <<locked>> | 90% | 56,130 psi | 88% | 2818 fps | 100% |
| Norma 203B | <<locked>> | 94% | 57,682 psi | 90% | 2900 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 51,053 psi | 80% | 2844 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 92% | 54,592 psi | 86% | 2874 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 50,082 psi | 78% | 2835 fps | 97.2% |
| Ramshot TAC | <<locked>> | 88% | 56,724 psi | 89% | 2844 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 88% | 56,028 psi | 88% | 2861 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 86% | 57,319 psi | 90% | 2828 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,607 psi | 56% | 1752 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 55,854 psi | 88% | 2808 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 56,608 psi | 89% | 2848 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 55,274 psi | 87% | 2927 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 54,491 psi | 85% | 2956 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 51,314 psi | 80% | 2877 fps | 98.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 51,851 psi | 81% | 2900 fps | 98.4% |
| Rottweil R 901 | <<locked>> | 88% | 56,768 psi | 89% | 2799 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 56,072 psi | 88% | 2812 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 54,302 psi | 85% | 2841 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 98% | 55,056 psi | 86% | 2815 fps | 96.5% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 56,246 psi | 88% | 2841 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 90% | 56,768 psi | 89% | 2851 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 57,116 psi | 90% | 2848 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 53,490 psi | 84% | 2822 fps | 97.1% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 55,622 psi | 87% | 2779 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 56,202 psi | 88% | 2904 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 55,129 psi | 86% | 2753 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 54,897 psi | 86% | 2818 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 55,564 psi | 87% | 2844 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 54,302 psi | 85% | 2713 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 57,450 psi | 90% | 2753 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 57,087 psi | 89% | 2799 fps | 97.4% |
| Somchem S321 | <<locked>> | 84% | 53,911 psi | 84% | 2808 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 56,898 psi | 89% | 2756 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 54,462 psi | 85% | 2812 fps | 99.7% |
| Somchem S355 | <<locked>> | 96% | 54,795 psi | 86% | 2841 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,571 psi | 71% | 2795 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 86% | 57,392 psi | 90% | 2723 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 54,404 psi | 85% | 2700 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 55,767 psi | 87% | 2782 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 56,869 psi | 89% | 2799 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 56,623 psi | 89% | 2822 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 53,635 psi | 84% | 2841 fps | 99% |
| Vihtavuori N530 | <<locked>> | 88% | 56,884 psi | 89% | 2825 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 54,955 psi | 86% | 2795 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 52,779 psi | 83% | 2851 fps | 98.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,319 psi | 60% | 2664 fps | 97% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 54,549 psi | 85% | 2828 fps | 100% |
| Winchester 748 | <<locked>> | 88% | 56,463 psi | 88% | 2871 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 55,158 psi | 86% | 2910 fps | 97.3% |
| Winchester StaBALL Match | <<locked>> | 90% | 55,288 psi | 87% | 2851 fps | 100% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 45,324 psi | 71% | 2592 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,443 psi | 77% | 2700 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,927 psi | 59% | 2510 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,570 psi | 70% | 2657 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 52,460 psi | 82% | 2730 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 35,824 psi | 56% | 2500 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 36,579 psi | 57% | 2575 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 53,476 psi | 84% | 2667 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 53,882 psi | 84% | 2690 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 41,626 psi | 65% | 2608 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 80% | 35,549 psi | 56% | 2461 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,700 psi | 68% | 2621 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 43,410 psi | 68% | 2618 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 50,908 psi | 80% | 2822 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 37,637 psi | 59% | 2625 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,925 psi | 55% | 2484 fps | 97.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,010 psi | 80% | 2684 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,463 psi | 59% | 2539 fps | 96.6% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,970 psi | 58% | 2585 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 82% | 32,169 psi | 50% | 2493 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 96% | 31,633 psi | 50% | 2477 fps | 95.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 52,692 psi | 83% | 2664 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,654 psi | 64% | 2608 fps | 96.9% |
| Bofors RP3 | <<locked>> | 80% | 34,243 psi | 54% | 2480 fps | 97.3% |
| Bofors RP7 | <<locked>> | 94% | 48,791 psi | 76% | 2713 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,614 psi | 71% | 2615 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,177 psi | 66% | 2638 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,485 psi | 73% | 2779 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 80% | 50,053 psi | 78% | 2723 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 50,908 psi | 80% | 2746 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 37,724 psi | 59% | 2539 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 94% | 45,107 psi | 71% | 2740 fps | 95% |
| Hodgdon H4350 | <<locked>> | 96% | 52,547 psi | 82% | 2815 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 42,003 psi | 66% | 2621 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 31,894 psi | 50% | 2431 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,971 psi | 60% | 2589 fps | 98.3% |
| Hodgdon Superformance | <<locked>> | 96% | 48,675 psi | 76% | 2818 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,092 psi | 41% | 1526 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,466 psi | 63% | 2575 fps | 98.3% |
| IMR 3031 | <<locked>> | 80% | 41,452 psi | 65% | 2625 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,289 psi | 58% | 2497 fps | 96.6% |
| IMR 4166 Enduron | <<locked>> | 86% | 48,153 psi | 75% | 2674 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 51,430 psi | 81% | 2648 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 48,646 psi | 76% | 2733 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 92% | 47,659 psi | 75% | 2694 fps | 95.4% |
| IMR 4831 | <<locked>> | 90% | 35,491 psi | 56% | 2533 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 38,363 psi | 60% | 2572 fps | 97.5% |
| IMR 8208 XBR | <<locked>> | 80% | 43,700 psi | 68% | 2621 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 80% | 49,371 psi | 77% | 2707 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 40,422 psi | 63% | 2592 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 42,134 psi | 66% | 2552 fps | 98.3% |
| Lovex S062 | <<locked>> | 80% | 37,115 psi | 58% | 2503 fps | 98.3% |
| Lovex S065 | <<locked>> | 90% | 41,524 psi | 65% | 2592 fps | 95.4% |
| Lovex S070 | <<locked>> | 94% | 44,396 psi | 70% | 2664 fps | 95% |
| Norma 201 | <<locked>> | 80% | 40,843 psi | 64% | 2566 fps | 99% |
| Norma 202 | <<locked>> | 80% | 41,104 psi | 64% | 2579 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,854 psi | 58% | 2533 fps | 97.1% |
| Norma URP | <<locked>> | 90% | 36,956 psi | 58% | 2575 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 36,289 psi | 57% | 2539 fps | 96.6% |
| Ramshot Hunter | <<locked>> | 96% | 43,990 psi | 69% | 2723 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 43,584 psi | 68% | 2621 fps | 96.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,004 psi | 67% | 2644 fps | 98.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,210 psi | 74% | 2667 fps | 99% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,382 psi | 41% | 1565 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,994 psi | 77% | 2703 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 43,671 psi | 68% | 2631 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,885 psi | 61% | 2638 fps | 97% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 32,082 psi | 50% | 2503 fps | 98.1% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 36,506 psi | 57% | 2592 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 39,537 psi | 62% | 2657 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 44,715 psi | 70% | 2612 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,015 psi | 61% | 2520 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 80% | 32,242 psi | 51% | 2425 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 94% | 48,791 psi | 76% | 2713 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 90% | 41,524 psi | 65% | 2592 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,422 psi | 63% | 2592 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 37,115 psi | 58% | 2503 fps | 98.3% |
| Shooters World SW4350 | <<locked>> | 94% | 44,396 psi | 70% | 2664 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 51,750 psi | 81% | 2723 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,257 psi | 52% | 2474 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 51,808 psi | 81% | 2707 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,829 psi | 66% | 2595 fps | 96.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,176 psi | 63% | 2579 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,322 psi | 66% | 2526 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,012 psi | 55% | 2395 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 46,659 psi | 73% | 2638 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 47,079 psi | 74% | 2700 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 41,901 psi | 66% | 2530 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,452 psi | 65% | 2595 fps | 98.1% |
| Somchem S355 | <<locked>> | 80% | 33,228 psi | 52% | 2434 fps | 96.4% |
| Somchem S365 | <<locked>> | 84% | 27,369 psi | 43% | 2362 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 47,863 psi | 75% | 2592 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,569 psi | 67% | 2523 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,087 psi | 60% | 2507 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,798 psi | 61% | 2513 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 31,546 psi | 49% | 2375 fps | 97.2% |
| Vihtavuori N160 | <<locked>> | 88% | 36,274 psi | 57% | 2523 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 43,685 psi | 68% | 2618 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 80% | 37,333 psi | 59% | 2500 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 90% | 38,058 psi | 60% | 2582 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 96% | 33,823 psi | 53% | 2559 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 32,126 psi | 50% | 2402 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 43,149 psi | 68% | 2664 fps | 99.7% |
| Winchester 760 | <<locked>> | 94% | 45,353 psi | 71% | 2743 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,465 psi | 62% | 2579 fps | 98.2% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 105 powders for .300 RCM loaded with the .308 | 165gr | SUS-TAC HP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,989 fps; across all powders the maximum-charge window runs from 1,713 fps to 2,989 fps. Accurate 4350 gives the best case fill at 100 %, and 105 of the 105 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 165.0 gr projectile in 0.308" calls for a 1:11.0 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.