Load Specifications
Bullet:.308 | 185gr | Lapua D46
Bullet Manufacturer:Lapua
Bullet Weight:185 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 | 185gr | Lapua D46 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.
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>> | 84% | 57,624 psi | 90% | 2621 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,884 psi | 89% | 2654 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,708 psi | 86% | 2671 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,521 psi | 87% | 2664 fps | 97.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,671 psi | 68% | 2575 fps | 97.5% |
| Accurate 4064 | <<locked>> | 90% | 56,695 psi | 89% | 2700 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 56,869 psi | 89% | 2795 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 56,768 psi | 89% | 2733 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,331 psi | 85% | 2684 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 51,445 psi | 81% | 2720 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,680 psi | 87% | 2680 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,058 psi | 89% | 2651 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,884 psi | 89% | 2858 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 54,476 psi | 85% | 2707 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,027 psi | 86% | 2726 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 57,566 psi | 90% | 2844 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,564 psi | 87% | 2831 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,314 psi | 79% | 2710 fps | 96.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,510 psi | 65% | 2605 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,615 psi | 73% | 2766 fps | 99.3% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,608 psi | 89% | 2749 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 55,216 psi | 87% | 2723 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,245 psi | 87% | 2700 fps | 98.1% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,421 psi | 90% | 2664 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,245 psi | 87% | 2713 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 57,566 psi | 90% | 2815 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,144 psi | 88% | 2740 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 96% | 55,782 psi | 87% | 2792 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 94% | 56,289 psi | 88% | 2753 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 86% | 57,377 psi | 90% | 2740 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,940 psi | 85% | 2720 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,217 psi | 90% | 2779 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,202 psi | 88% | 2828 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,665 psi | 56% | 1640 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,216 psi | 87% | 2697 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,041 psi | 85% | 2671 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,232 psi | 90% | 2717 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,043 psi | 89% | 2700 fps | 98.8% |
| IMR 4350 | <<locked>> | 98% | 55,506 psi | 87% | 2726 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,869 psi | 89% | 2726 fps | 98.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 57,130 psi | 90% | 2782 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 56,449 psi | 88% | 2756 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,680 psi | 87% | 2680 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,884 psi | 89% | 2707 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,072 psi | 88% | 2661 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,377 psi | 90% | 2713 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,579 psi | 89% | 2723 fps | 99.5% |
| Lovex S070 | <<locked>> | 98% | 57,595 psi | 90% | 2759 fps | 99% |
| Norma 201 | <<locked>> | 86% | 55,579 psi | 87% | 2677 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,217 psi | 88% | 2677 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,273 psi | 85% | 2717 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,144 psi | 88% | 2776 fps | 97.2% |
| Norma MRPᴾ | <<locked>> | 100% | 46,369 psi | 73% | 2723 fps | 97% |
| Norma URP | <<locked>> | 98% | 55,738 psi | 87% | 2782 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 54,984 psi | 86% | 2743 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 54,302 psi | 85% | 2779 fps | 99.2% |
| Ramshot TAC | <<locked>> | 84% | 56,043 psi | 88% | 2710 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,796 psi | 87% | 2723 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,362 psi | 88% | 2684 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,230 psi | 57% | 1680 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,289 psi | 88% | 2723 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,695 psi | 87% | 2792 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,129 psi | 86% | 2825 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,449 psi | 88% | 2815 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,680 psi | 87% | 2844 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 84% | 56,521 psi | 89% | 2654 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,014 psi | 88% | 2677 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,100 psi | 86% | 2713 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 48,965 psi | 77% | 2690 fps | 96.2% |
| Rottweil R 907 | <<locked>> | 94% | 55,245 psi | 87% | 2700 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,579 psi | 89% | 2723 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,884 psi | 89% | 2707 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,377 psi | 90% | 2713 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 57,595 psi | 90% | 2759 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,811 psi | 89% | 2772 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,505 psi | 85% | 2687 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,230 psi | 87% | 2707 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,855 psi | 89% | 2612 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,188 psi | 90% | 2612 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,608 psi | 89% | 2677 fps | 98.7% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 48,501 psi | 76% | 2684 fps | 96.1% |
| Somchem S321 | <<locked>> | 82% | 57,130 psi | 90% | 2717 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,304 psi | 88% | 2612 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 57,725 psi | 90% | 2723 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,288 psi | 87% | 2713 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,838 psi | 84% | 2782 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 49,690 psi | 78% | 2674 fps | 97.2% |
| Vihtavuori N130 | <<locked>> | 82% | 56,695 psi | 89% | 2572 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,159 psi | 90% | 2595 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,144 psi | 88% | 2638 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,550 psi | 89% | 2654 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,811 psi | 89% | 2690 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,534 psi | 85% | 2726 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 84% | 56,318 psi | 88% | 2684 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 54,897 psi | 86% | 2657 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 57,217 psi | 90% | 2782 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,832 psi | 72% | 2674 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,621 psi | 86% | 2703 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,521 psi | 89% | 2730 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,101 psi | 88% | 2795 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,086 psi | 58% | 2621 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,129 psi | 86% | 2713 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% | 51,213 psi | 80% | 2539 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,918 psi | 69% | 2477 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,024 psi | 80% | 2621 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 42,772 psi | 67% | 2454 fps | 95.2% |
| Accurate 3100 | <<locked>> | 94% | 35,563 psi | 56% | 2418 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 41,568 psi | 65% | 2477 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,589 psi | 48% | 2316 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 47,079 psi | 74% | 2585 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 40,016 psi | 63% | 2444 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 98% | 48,211 psi | 76% | 2667 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,124 psi | 77% | 2585 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,125 psi | 79% | 2566 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,192 psi | 68% | 2628 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,045 psi | 63% | 2470 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,699 psi | 67% | 2526 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,053 psi | 49% | 2329 fps | 95.3% |
| Alliant Reloder-17 | 50.2 gr | 80% | 34,548 psi | 54% | 2448 fps | 98.4% |
| Alliant Reloder-19 | <<locked>> | 98% | 47,253 psi | 74% | 2657 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 86% | 26,992 psi | 42% | 2247 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 90% | 32,909 psi | 52% | 2464 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,514 psi | 73% | 2595 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 39,842 psi | 62% | 2477 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 43,134 psi | 68% | 2500 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,778 psi | 80% | 2572 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,457 psi | 76% | 2615 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,693 psi | 84% | 2759 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,480 psi | 63% | 2477 fps | 97.8% |
| Hodgdon H414 | <<locked>> | 86% | 40,219 psi | 63% | 2526 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 86% | 43,758 psi | 69% | 2546 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 47,514 psi | 74% | 2592 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,543 psi | 45% | 2238 fps | 96.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,801 psi | 69% | 2575 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 42,308 psi | 66% | 2592 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,643 psi | 42% | 1463 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,658 psi | 72% | 2549 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 47,514 psi | 74% | 2579 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,047 psi | 66% | 2474 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,498 psi | 70% | 2497 fps | 96.6% |
| IMR 4350 | <<locked>> | 90% | 43,236 psi | 68% | 2526 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,436 psi | 62% | 2428 fps | 95% |
| IMR 4831 | <<locked>> | 82% | 31,865 psi | 50% | 2329 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 43,772 psi | 69% | 2556 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 49,124 psi | 77% | 2585 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,601 psi | 73% | 2566 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,775 psi | 73% | 2520 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 42,047 psi | 66% | 2477 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 34,693 psi | 54% | 2333 fps | 95.1% |
| Lovex S070 | <<locked>> | 86% | 39,711 psi | 62% | 2461 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 46,180 psi | 72% | 2539 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,673 psi | 73% | 2543 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,090 psi | 66% | 2516 fps | 99.4% |
| Norma 204 | <<locked>> | 94% | 48,950 psi | 77% | 2664 fps | 95.7% |
| Norma MRP | <<locked>> | 96% | 40,567 psi | 64% | 2608 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 31,009 psi | 49% | 2320 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 41,916 psi | 66% | 2533 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 36,782 psi | 58% | 2461 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 49,110 psi | 77% | 2602 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,791 psi | 76% | 2618 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,069 psi | 83% | 2638 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,006 psi | 42% | 1499 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,828 psi | 64% | 2464 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,397 psi | 71% | 2631 fps | 99.5% |
| ReloadSwiss RS 60 | 50.2 gr | 80% | 36,767 psi | 58% | 2510 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 32,576 psi | 51% | 2385 fps | 95.5% |
| ReloadSwiss RS 70 | 53.5 gr | 84% | 34,737 psi | 54% | 2444 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 50,140 psi | 79% | 2566 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,932 psi | 69% | 2490 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 37,347 psi | 59% | 2421 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 98% | 46,050 psi | 72% | 2641 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 86% | 43,134 psi | 68% | 2500 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,693 psi | 54% | 2333 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,601 psi | 73% | 2566 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,047 psi | 66% | 2477 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 39,711 psi | 62% | 2461 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,319 psi | 60% | 2470 fps | 98.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,500 psi | 74% | 2579 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,629 psi | 72% | 2556 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,282 psi | 74% | 2480 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,537 psi | 62% | 2359 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,002 psi | 64% | 2425 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 45,614 psi | 71% | 2635 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 53,403 psi | 84% | 2664 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 47,065 psi | 74% | 2484 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,355 psi | 74% | 2575 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 38,130 psi | 60% | 2425 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 27,847 psi | 44% | 2277 fps | 97.4% |
| Somchem S385 | <<locked>> | 96% | 43,642 psi | 68% | 2569 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 53,229 psi | 83% | 2530 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,688 psi | 75% | 2470 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,613 psi | 68% | 2467 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,077 psi | 69% | 2477 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,245 psi | 57% | 2362 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 32,285 psi | 51% | 2320 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 49,516 psi | 78% | 2585 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,540 psi | 67% | 2474 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 31,879 psi | 50% | 2323 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 86% | 28,979 psi | 45% | 2316 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,068 psi | 50% | 2300 fps | 97.7% |
| Winchester 748 | <<locked>> | 80% | 49,443 psi | 77% | 2631 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 40,219 psi | 63% | 2526 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,035 psi | 42% | 2320 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,107 psi | 71% | 2562 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 | 185gr | Lapua D46. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,858 fps; across all powders the maximum-charge window runs from 1,640 fps to 2,858 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 185.0 gr projectile in 0.308" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-16 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 | 185gr | Lapua D46 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.