Load Specifications
Bullet:.308 | 167gr | Hasler BULL
Bullet Manufacturer:Hasler
Bullet Weight:167 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:1:12.0
Load data in caliber .300 RCM with .308 | 167gr | Hasler BULL bullet and 105 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, ReloadSwiss RS 60 and Alliant Reloder-17.
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% | 56,115 psi | 88% | 2736 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 54,375 psi | 85% | 2759 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 54,143 psi | 85% | 2756 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 56,449 psi | 88% | 2825 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 57,551 psi | 90% | 2802 fps | 97% |
| Accurate 4064 | <<locked>> | 94% | 57,522 psi | 90% | 2844 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,461 psi | 84% | 2871 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 88% | 54,984 psi | 86% | 2831 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 94% | 55,956 psi | 88% | 2828 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 88% | 57,551 psi | 90% | 2835 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 54,665 psi | 86% | 2762 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 55,898 psi | 88% | 2890 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 54,433 psi | 85% | 2943 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 55,666 psi | 87% | 2848 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 55,622 psi | 87% | 2736 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 56,579 psi | 89% | 2874 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 51,764 psi | 81% | 2877 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 98% | 56,579 psi | 89% | 2972 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,956 psi | 58% | 2612 fps | 97.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 40,799 psi | 64% | 2753 fps | 96.5% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 57,580 psi | 90% | 2720 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 54,708 psi | 86% | 2844 fps | 99.5% |
| Bofors RP3 | <<locked>> | 94% | 56,333 psi | 88% | 2867 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 56,608 psi | 89% | 2831 fps | 97.1% |
| Hodgdon Benchmark | <<locked>> | 86% | 56,028 psi | 88% | 2769 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 57,014 psi | 89% | 2867 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 55,114 psi | 86% | 2910 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 82% | 54,578 psi | 86% | 2779 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 55,840 psi | 88% | 2805 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 57,508 psi | 90% | 2877 fps | 99.3% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 56,840 psi | 89% | 2927 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 98% | 57,740 psi | 90% | 2887 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 88% | 55,492 psi | 87% | 2841 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 47,892 psi | 75% | 2756 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 54,607 psi | 86% | 2874 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 53,998 psi | 85% | 2904 fps | 96.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,186 psi | 55% | 1709 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 56,826 psi | 89% | 2844 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 55,390 psi | 87% | 2828 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,550 psi | 87% | 2815 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 90% | 55,738 psi | 87% | 2792 fps | 97.5% |
| IMR 4198 | <<locked>> | 82% | 55,506 psi | 87% | 2694 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 53,171 psi | 83% | 2802 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 96% | 55,071 psi | 86% | 2812 fps | 97.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,836 psi | 80% | 2815 fps | 99.1% |
| IMR 4895 | <<locked>> | 90% | 54,389 psi | 85% | 2851 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 88% | 57,551 psi | 90% | 2835 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 54,273 psi | 85% | 2769 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 54,636 psi | 86% | 2808 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 54,723 psi | 86% | 2759 fps | 99.9% |
| Lovex S062 | <<locked>> | 92% | 55,216 psi | 87% | 2808 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 54,244 psi | 85% | 2805 fps | 98.4% |
| Lovex S070ᴾ | <<locked>> | 100% | 55,085 psi | 86% | 2838 fps | 97.6% |
| Norma 201 | <<locked>> | 90% | 57,101 psi | 89% | 2825 fps | 100% |
| Norma 202 | <<locked>> | 90% | 57,667 psi | 90% | 2828 fps | 100% |
| Norma 203B | <<locked>> | 92% | 55,738 psi | 87% | 2864 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 52,765 psi | 83% | 2861 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 92% | 56,304 psi | 88% | 2887 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 51,576 psi | 81% | 2851 fps | 97.7% |
| Ramshot TAC | <<locked>> | 86% | 54,505 psi | 85% | 2802 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 88% | 57,435 psi | 90% | 2871 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 55,143 psi | 86% | 2785 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,679 psi | 56% | 1749 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 57,087 psi | 89% | 2815 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 54,288 psi | 85% | 2808 fps | 97.8% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 56,869 psi | 89% | 2940 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 56,144 psi | 88% | 2969 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 53,011 psi | 83% | 2890 fps | 99.1% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 53,490 psi | 84% | 2923 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 86% | 54,795 psi | 86% | 2762 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 57,566 psi | 90% | 2822 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 56,173 psi | 88% | 2858 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 56,608 psi | 89% | 2831 fps | 97.1% |
| Shooters World Long Rifle | <<locked>> | 98% | 54,244 psi | 85% | 2805 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 88% | 54,636 psi | 86% | 2808 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,216 psi | 87% | 2808 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 55,085 psi | 86% | 2838 fps | 97.6% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 56,768 psi | 89% | 2789 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 54,259 psi | 85% | 2864 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 56,565 psi | 89% | 2759 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 56,550 psi | 89% | 2835 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 56,898 psi | 89% | 2854 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 55,477 psi | 87% | 2720 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 55,376 psi | 87% | 2717 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 54,853 psi | 86% | 2759 fps | 97.3% |
| Somchem S321 | <<locked>> | 84% | 55,317 psi | 87% | 2818 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 54,766 psi | 86% | 2720 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 55,840 psi | 88% | 2822 fps | 99.9% |
| Somchem S355 | <<locked>> | 96% | 56,594 psi | 89% | 2854 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,152 psi | 74% | 2812 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 55,303 psi | 87% | 2684 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 55,593 psi | 87% | 2707 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 57,116 psi | 90% | 2785 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 54,723 psi | 86% | 2759 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,563 psi | 86% | 2785 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 55,332 psi | 87% | 2858 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 86% | 54,621 psi | 86% | 2785 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 56,289 psi | 88% | 2802 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 54,389 psi | 85% | 2864 fps | 99.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,842 psi | 62% | 2684 fps | 97.6% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 56,202 psi | 88% | 2844 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 54,317 psi | 85% | 2831 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 56,840 psi | 89% | 2927 fps | 97.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 32,851 psi | 51% | 2585 fps | 96.8% |
| Winchester StaBALL Match | <<locked>> | 90% | 56,710 psi | 89% | 2861 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% | 46,528 psi | 73% | 2598 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 50,937 psi | 80% | 2710 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,175 psi | 61% | 2523 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,006 psi | 72% | 2671 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 50,633 psi | 79% | 2697 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 36,999 psi | 58% | 2513 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 35,288 psi | 55% | 2536 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 42,714 psi | 67% | 2621 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 80% | 36,535 psi | 57% | 2477 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,788 psi | 70% | 2631 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 80% | 44,773 psi | 70% | 2625 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 52,301 psi | 82% | 2835 fps | 99.9% |
| Alliant Power Pro 2000-MR | 49.9 gr | 80% | 38,769 psi | 61% | 2644 fps | 96.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,955 psi | 56% | 2497 fps | 97.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 52,388 psi | 82% | 2694 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,508 psi | 60% | 2556 fps | 97.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 35,897 psi | 56% | 2552 fps | 95.6% |
| Alliant Reloder-17 | 49.1 gr | 80% | 30,922 psi | 48% | 2451 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 94% | 30,676 psi | 48% | 2448 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 98% | 38,174 psi | 60% | 2690 fps | 95.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 53,969 psi | 85% | 2671 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,887 psi | 66% | 2625 fps | 97.5% |
| Bofors RP3 | <<locked>> | 80% | 35,331 psi | 55% | 2497 fps | 97.8% |
| Bofors RP7 | <<locked>> | 92% | 47,137 psi | 74% | 2677 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,630 psi | 73% | 2625 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,526 psi | 68% | 2654 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 47,979 psi | 75% | 2795 fps | 99.1% |
| Hodgdon H322 | <<locked>> | 80% | 51,343 psi | 80% | 2730 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 52,054 psi | 82% | 2753 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,216 psi | 57% | 2497 fps | 95% |
| Hodgdon H414 | <<locked>> | 94% | 46,615 psi | 73% | 2759 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 94% | 50,749 psi | 80% | 2779 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 43,120 psi | 68% | 2635 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 30,792 psi | 48% | 2395 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,044 psi | 61% | 2602 fps | 98.7% |
| Hodgdon Superformance | <<locked>> | 94% | 46,804 psi | 73% | 2776 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,281 psi | 41% | 1529 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,524 psi | 65% | 2589 fps | 98.7% |
| IMR 3031 | <<locked>> | 80% | 42,743 psi | 67% | 2635 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,319 psi | 60% | 2510 fps | 97.2% |
| IMR 4166 Enduron | <<locked>> | 84% | 46,354 psi | 73% | 2635 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 52,475 psi | 82% | 2654 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 47,007 psi | 74% | 2700 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 90% | 46,079 psi | 72% | 2661 fps | 95.3% |
| IMR 4831 | <<locked>> | 88% | 34,330 psi | 54% | 2497 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 39,450 psi | 62% | 2585 fps | 98% |
| IMR 8208 XBR | <<locked>> | 80% | 44,788 psi | 70% | 2631 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 80% | 50,560 psi | 79% | 2717 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 41,829 psi | 66% | 2605 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 43,120 psi | 68% | 2566 fps | 98.7% |
| Lovex S062 | <<locked>> | 80% | 38,174 psi | 60% | 2516 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 40,030 psi | 63% | 2552 fps | 95.3% |
| Lovex S070 | <<locked>> | 94% | 45,643 psi | 72% | 2680 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 41,959 psi | 66% | 2579 fps | 99.3% |
| Norma 202 | <<locked>> | 80% | 42,264 psi | 66% | 2589 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,898 psi | 59% | 2546 fps | 97.6% |
| Norma URP | <<locked>> | 88% | 35,882 psi | 56% | 2543 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 37,434 psi | 59% | 2556 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 94% | 42,525 psi | 67% | 2687 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 44,773 psi | 70% | 2638 fps | 96.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,034 psi | 69% | 2654 fps | 98.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,472 psi | 76% | 2680 fps | 99.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,585 psi | 42% | 1565 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,140 psi | 79% | 2713 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,090 psi | 66% | 2595 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,335 psi | 63% | 2657 fps | 97.6% |
| ReloadSwiss RS 60 | 49.1 gr | 80% | 32,924 psi | 52% | 2520 fps | 98.7% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 37,652 psi | 59% | 2612 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 40,770 psi | 64% | 2680 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 45,948 psi | 72% | 2625 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,074 psi | 63% | 2533 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 33,286 psi | 52% | 2441 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 92% | 47,137 psi | 74% | 2677 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 88% | 40,030 psi | 63% | 2552 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,829 psi | 66% | 2605 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 38,174 psi | 60% | 2516 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 94% | 45,643 psi | 72% | 2680 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 53,185 psi | 83% | 2736 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,374 psi | 54% | 2490 fps | 96.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 53,214 psi | 83% | 2713 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,859 psi | 67% | 2608 fps | 96.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,394 psi | 65% | 2595 fps | 98.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,468 psi | 68% | 2539 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,013 psi | 56% | 2405 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 45,063 psi | 71% | 2605 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 48,414 psi | 76% | 2713 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 42,960 psi | 67% | 2539 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,670 psi | 67% | 2608 fps | 98.5% |
| Somchem S355 | <<locked>> | 80% | 34,258 psi | 54% | 2451 fps | 97% |
| Somchem S365 | <<locked>> | 84% | 28,152 psi | 44% | 2382 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 49,066 psi | 77% | 2598 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,700 psi | 68% | 2533 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,291 psi | 62% | 2520 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,885 psi | 63% | 2523 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,489 psi | 51% | 2388 fps | 97.8% |
| Vihtavuori N160 | <<locked>> | 86% | 35,027 psi | 55% | 2487 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 44,788 psi | 70% | 2628 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 38,305 psi | 60% | 2510 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 36,767 psi | 58% | 2543 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 94% | 32,692 psi | 51% | 2520 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 30,995 psi | 49% | 2365 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 44,295 psi | 69% | 2674 fps | 99.9% |
| Winchester 760 | <<locked>> | 94% | 46,615 psi | 73% | 2759 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 98% | 30,821 psi | 48% | 2520 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,741 psi | 64% | 2598 fps | 98.7% |
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 117 powders for .300 RCM loaded with the .308 | 167gr | Hasler BULL. Alliant Reloder-17 delivers the highest muzzle velocity at 2,972 fps; across all powders the maximum-charge window runs from 1,709 fps to 2,972 fps. Accurate 3100 gives the best case fill at 100 %, and 117 of the 117 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 167.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, ADI AR 2209 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, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .300 RCM with the .308 | 167gr | Hasler BULL they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, ADI AR 2209, Alliant Reloder-19 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.