Load Specifications
Bullet Manufacturer:Hornady
Bullet Weight:174 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 | 174gr | Hornady ELD-VT bullet and 104 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.
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% | 56,724 psi | 89% | 2680 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 55,129 psi | 86% | 2707 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 55,042 psi | 86% | 2703 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 57,130 psi | 90% | 2769 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 54,375 psi | 85% | 2697 fps | 96.7% |
| Accurate 4064 | <<locked>> | 92% | 54,839 psi | 86% | 2746 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 54,244 psi | 85% | 2825 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 88% | 55,521 psi | 87% | 2776 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 56,565 psi | 89% | 2776 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 54,708 psi | 86% | 2730 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 55,347 psi | 87% | 2707 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 56,579 psi | 89% | 2835 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 55,274 psi | 87% | 2897 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 56,362 psi | 88% | 2799 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 56,318 psi | 88% | 2680 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 56,971 psi | 89% | 2818 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 52,286 psi | 82% | 2825 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 98% | 57,116 psi | 90% | 2917 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,376 psi | 59% | 2569 fps | 98.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,350 psi | 65% | 2713 fps | 97.2% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 55,448 psi | 87% | 2795 fps | 99.7% |
| Bofors RP3 | <<locked>> | 94% | 57,203 psi | 90% | 2815 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 57,145 psi | 90% | 2779 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 86% | 56,695 psi | 89% | 2717 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 57,508 psi | 90% | 2808 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 55,869 psi | 88% | 2858 fps | 99.9% |
| Hodgdon H322 | <<locked>> | 82% | 55,492 psi | 87% | 2726 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 56,333 psi | 88% | 2749 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 54,621 psi | 86% | 2776 fps | 99.3% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 57,377 psi | 90% | 2874 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 96% | 54,679 psi | 86% | 2785 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 88% | 56,043 psi | 88% | 2789 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,718 psi | 76% | 2710 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 55,390 psi | 87% | 2822 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 54,708 psi | 86% | 2858 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,288 psi | 55% | 1667 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 57,406 psi | 90% | 2789 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 55,883 psi | 88% | 2769 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 56,086 psi | 88% | 2759 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 90% | 56,304 psi | 88% | 2743 fps | 97.8% |
| IMR 4198 | <<locked>> | 82% | 56,347 psi | 88% | 2641 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 53,795 psi | 84% | 2753 fps | 96.9% |
| IMR 4451 Enduron | <<locked>> | 96% | 55,811 psi | 87% | 2766 fps | 97.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,532 psi | 81% | 2766 fps | 99.3% |
| IMR 4895 | <<locked>> | 90% | 55,027 psi | 86% | 2799 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 54,708 psi | 86% | 2730 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 54,781 psi | 86% | 2717 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 55,317 psi | 87% | 2756 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 55,390 psi | 87% | 2710 fps | 99.9% |
| Lovex S062 | <<locked>> | 92% | 55,767 psi | 87% | 2756 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 55,013 psi | 86% | 2759 fps | 98.8% |
| Lovex S070ᴾ | <<locked>> | 100% | 55,724 psi | 87% | 2789 fps | 98% |
| Norma 201 | <<locked>> | 88% | 54,520 psi | 85% | 2726 fps | 100% |
| Norma 202 | <<locked>> | 88% | 54,810 psi | 86% | 2726 fps | 100% |
| Norma 203B | <<locked>> | 92% | 56,130 psi | 88% | 2805 fps | 100% |
| Norma URPᴾ | <<locked>> | 100% | 53,447 psi | 84% | 2812 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 92% | 56,942 psi | 89% | 2835 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 52,344 psi | 82% | 2805 fps | 98.1% |
| Ramshot TAC | <<locked>> | 86% | 55,129 psi | 86% | 2753 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 86% | 54,549 psi | 85% | 2769 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 55,680 psi | 87% | 2736 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,810 psi | 56% | 1706 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 54,128 psi | 85% | 2710 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 55,114 psi | 86% | 2759 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 53,882 psi | 84% | 2831 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 56,927 psi | 89% | 2920 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 54,041 psi | 85% | 2848 fps | 99.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 54,085 psi | 85% | 2874 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 86% | 55,332 psi | 87% | 2707 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 54,723 psi | 86% | 2720 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 56,681 psi | 89% | 2802 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 57,145 psi | 90% | 2779 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 98% | 55,013 psi | 86% | 2759 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 88% | 55,317 psi | 87% | 2756 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,767 psi | 87% | 2756 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 55,724 psi | 87% | 2789 fps | 98% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 57,508 psi | 90% | 2733 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 54,897 psi | 86% | 2812 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 57,319 psi | 90% | 2703 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 57,043 psi | 89% | 2779 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 57,638 psi | 90% | 2802 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 56,086 psi | 88% | 2667 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 56,188 psi | 88% | 2664 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 55,434 psi | 87% | 2710 fps | 97.7% |
| Somchem S321 | <<locked>> | 84% | 55,898 psi | 88% | 2766 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,463 psi | 87% | 2667 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 56,608 psi | 89% | 2772 fps | 100% |
| Somchem S355 | <<locked>> | 96% | 57,000 psi | 89% | 2799 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,834 psi | 75% | 2762 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 55,767 psi | 87% | 2628 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 56,217 psi | 88% | 2651 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 54,447 psi | 85% | 2690 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 55,288 psi | 87% | 2703 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 55,056 psi | 86% | 2733 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 56,072 psi | 88% | 2808 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 86% | 55,114 psi | 86% | 2730 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 57,043 psi | 89% | 2749 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 55,201 psi | 87% | 2818 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,422 psi | 63% | 2641 fps | 98.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 56,840 psi | 89% | 2792 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 54,940 psi | 86% | 2779 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 57,711 psi | 90% | 2877 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,344 psi | 52% | 2556 fps | 97.6% |
| Winchester StaBALL Match | <<locked>> | 90% | 57,464 psi | 90% | 2808 fps | 100% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 47,181 psi | 74% | 2549 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 51,576 psi | 81% | 2657 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,784 psi | 62% | 2477 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,630 psi | 73% | 2621 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 47,718 psi | 75% | 2592 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 37,637 psi | 59% | 2470 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 33,489 psi | 52% | 2444 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 43,381 psi | 68% | 2579 fps | 98.9% |
| ADI AR 2208 | <<locked>> | 80% | 36,825 psi | 58% | 2431 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,469 psi | 71% | 2585 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 45,527 psi | 71% | 2575 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 53,156 psi | 83% | 2785 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,305 psi | 62% | 2602 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,347 psi | 57% | 2454 fps | 98.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 52,953 psi | 83% | 2638 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,160 psi | 61% | 2513 fps | 97.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 34,069 psi | 53% | 2457 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 31,343 psi | 49% | 2415 fps | 96.1% |
| Alliant Reloder-23 | <<locked>> | 94% | 31,096 psi | 49% | 2411 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 96% | 36,143 psi | 57% | 2592 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,525 psi | 67% | 2582 fps | 97.9% |
| Bofors RP3 | <<locked>> | 80% | 35,998 psi | 56% | 2457 fps | 98.3% |
| Bofors RP7 | <<locked>> | 92% | 47,645 psi | 75% | 2631 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,282 psi | 74% | 2575 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,164 psi | 69% | 2608 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,501 psi | 76% | 2743 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 80% | 51,822 psi | 81% | 2674 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 52,750 psi | 83% | 2700 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,883 psi | 58% | 2461 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 92% | 44,077 psi | 69% | 2654 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 94% | 51,474 psi | 81% | 2733 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 43,801 psi | 69% | 2589 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 29,370 psi | 46% | 2306 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,552 psi | 62% | 2559 fps | 99% |
| Hodgdon Superformance | <<locked>> | 94% | 47,282 psi | 74% | 2733 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,397 psi | 41% | 1490 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,930 psi | 66% | 2539 fps | 99% |
| IMR 3031 | <<locked>> | 80% | 43,178 psi | 68% | 2582 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,653 psi | 61% | 2464 fps | 97.6% |
| IMR 4166 Enduron | <<locked>> | 82% | 43,932 psi | 69% | 2536 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 52,939 psi | 83% | 2595 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 47,471 psi | 74% | 2651 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 88% | 43,627 psi | 68% | 2559 fps | 95% |
| IMR 4831 | <<locked>> | 88% | 34,722 psi | 54% | 2454 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 40,118 psi | 63% | 2546 fps | 98.4% |
| IMR 8208 XBR | <<locked>> | 80% | 45,469 psi | 71% | 2585 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 51,285 psi | 80% | 2667 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,395 psi | 66% | 2559 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,453 psi | 68% | 2516 fps | 98.9% |
| Lovex S062 | <<locked>> | 80% | 38,537 psi | 60% | 2467 fps | 99% |
| Lovex S065 | <<locked>> | 86% | 38,043 psi | 60% | 2457 fps | 95% |
| Lovex S070 | <<locked>> | 92% | 43,584 psi | 68% | 2589 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 42,554 psi | 67% | 2533 fps | 99.5% |
| Norma 202 | <<locked>> | 80% | 42,656 psi | 67% | 2539 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,551 psi | 60% | 2503 fps | 98% |
| Norma URP | <<locked>> | 86% | 34,069 psi | 53% | 2448 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 37,971 psi | 60% | 2513 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 92% | 40,495 psi | 63% | 2592 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 45,368 psi | 71% | 2592 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,628 psi | 70% | 2608 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,081 psi | 77% | 2635 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,731 psi | 42% | 1529 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,937 psi | 80% | 2664 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,496 psi | 67% | 2546 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,930 psi | 64% | 2612 fps | 98.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,344 psi | 52% | 2480 fps | 99.1% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 35,781 psi | 56% | 2516 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 38,609 psi | 61% | 2579 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 46,485 psi | 73% | 2572 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,393 psi | 63% | 2484 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 80% | 33,837 psi | 53% | 2402 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 92% | 47,645 psi | 75% | 2631 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,043 psi | 60% | 2457 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,395 psi | 66% | 2559 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,537 psi | 60% | 2467 fps | 99% |
| Shooters World SW4350 | <<locked>> | 92% | 43,584 psi | 68% | 2589 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 53,824 psi | 84% | 2684 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,780 psi | 55% | 2448 fps | 96.9% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 53,809 psi | 84% | 2661 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,468 psi | 68% | 2562 fps | 97.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,887 psi | 66% | 2549 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,947 psi | 69% | 2490 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,477 psi | 57% | 2362 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 45,658 psi | 72% | 2559 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 49,110 psi | 77% | 2664 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,555 psi | 68% | 2490 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,279 psi | 68% | 2566 fps | 98.9% |
| Somchem S355 | <<locked>> | 80% | 34,795 psi | 55% | 2411 fps | 97.5% |
| Somchem S365 | <<locked>> | 82% | 26,861 psi | 42% | 2293 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 49,647 psi | 78% | 2546 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,237 psi | 69% | 2484 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,842 psi | 62% | 2470 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,509 psi | 63% | 2480 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,025 psi | 52% | 2349 fps | 98.2% |
| Vihtavuori N160 | <<locked>> | 86% | 35,592 psi | 56% | 2451 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 45,527 psi | 71% | 2582 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 38,986 psi | 61% | 2470 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 34,998 psi | 55% | 2451 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 92% | 31,212 psi | 49% | 2431 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,370 psi | 46% | 2274 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 44,889 psi | 70% | 2625 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 44,295 psi | 69% | 2661 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 96% | 29,327 psi | 46% | 2425 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,307 psi | 65% | 2552 fps | 99% |
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 | 174gr | Hornady ELD-VT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,920 fps; across all powders the maximum-charge window runs from 1,667 fps to 2,920 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 174.0 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.