Load Specifications
Bullet:.308 | 155gr | Lapua ScenarL
Bullet Manufacturer:Lapua
Bullet Weight:155 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Case Length (l3):2.003"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:74 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:65,000 psi
Recommended Twist Rate:1:12.0
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 155gr | Lapua ScenarL 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.
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>> | 88% | 57,624 psi | 89% | 2867 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 56,086 psi | 86% | 2894 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 55,695 psi | 86% | 2887 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 58,262 psi | 90% | 2963 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 55,753 psi | 86% | 2877 fps | 95.9% |
| Accurate 4064 | <<locked>> | 94% | 55,579 psi | 86% | 2933 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 51,285 psi | 79% | 2946 fps | 98.6% |
| Accurate LT-30 | <<locked>> | 82% | 56,579 psi | 87% | 2808 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 56,985 psi | 88% | 2838 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 56,652 psi | 87% | 2966 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 96% | 57,551 psi | 89% | 2959 fps | 99.6% |
| ADI AR 2219 | <<locked>> | 82% | 57,914 psi | 89% | 2936 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 55,811 psi | 86% | 2920 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 56,217 psi | 86% | 2900 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 57,566 psi | 89% | 3031 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 56,289 psi | 87% | 3084 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 57,421 psi | 88% | 2986 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 57,377 psi | 88% | 2874 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 58,073 psi | 89% | 3009 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,893 psi | 77% | 2949 fps | 98.7% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 58,160 psi | 89% | 3107 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,491 psi | 55% | 2664 fps | 96.3% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 55,738 psi | 86% | 2805 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 56,594 psi | 87% | 2979 fps | 99.3% |
| Bofors RP3 | <<locked>> | 96% | 57,986 psi | 89% | 3002 fps | 100% |
| Bofors RP7ᴾ | <<locked>> | 100% | 58,378 psi | 90% | 2963 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 88% | 57,754 psi | 89% | 2904 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 58,784 psi | 90% | 3002 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 57,116 psi | 88% | 3051 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 84% | 56,652 psi | 87% | 2920 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 57,870 psi | 89% | 2946 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 55,521 psi | 85% | 2956 fps | 98.8% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 54,723 psi | 84% | 2999 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 90% | 57,217 psi | 88% | 2979 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,021 psi | 71% | 2825 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 56,463 psi | 87% | 3012 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 56,028 psi | 86% | 3035 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,099 psi | 54% | 1781 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 58,537 psi | 90% | 2979 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 56,884 psi | 88% | 2963 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 57,000 psi | 88% | 2943 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 92% | 57,493 psi | 88% | 2923 fps | 97.1% |
| IMR 4198 | <<locked>> | 84% | 57,246 psi | 88% | 2831 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 56,884 psi | 88% | 2943 fps | 96.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,646 psi | 75% | 2884 fps | 98.3% |
| IMR 4895 | <<locked>> | 92% | 55,912 psi | 86% | 2986 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 88% | 55,811 psi | 86% | 2920 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 56,202 psi | 86% | 2907 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 56,072 psi | 86% | 2940 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 56,405 psi | 87% | 2890 fps | 99.8% |
| Lovex S062 | <<locked>> | 94% | 56,811 psi | 87% | 2943 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 55,869 psi | 86% | 2933 fps | 98.1% |
| Lovex S070ᴾ | <<locked>> | 100% | 53,084 psi | 82% | 2910 fps | 96.6% |
| Norma 201 | <<locked>> | 90% | 55,288 psi | 85% | 2910 fps | 100% |
| Norma 202 | <<locked>> | 90% | 55,796 psi | 86% | 2917 fps | 100% |
| Norma 203B | <<locked>> | 94% | 57,217 psi | 88% | 2992 fps | 99.8% |
| Norma URPᴾ | <<locked>> | 100% | 50,546 psi | 78% | 2933 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 94% | 58,059 psi | 89% | 3022 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,705 psi | 76% | 2920 fps | 96.7% |
| Ramshot TAC | <<locked>> | 88% | 56,275 psi | 87% | 2933 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 88% | 55,666 psi | 86% | 2956 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 86% | 57,087 psi | 88% | 2923 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,505 psi | 55% | 1824 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 55,434 psi | 85% | 2904 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 56,246 psi | 87% | 2940 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 58,581 psi | 90% | 3077 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 58,175 psi | 89% | 3114 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,995 psi | 78% | 2966 fps | 98.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 51,503 psi | 79% | 2989 fps | 98% |
| Rottweil R 901 | <<locked>> | 88% | 56,478 psi | 87% | 2897 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 55,738 psi | 86% | 2907 fps | 100% |
| Rottweil R 903 | <<locked>> | 98% | 57,827 psi | 89% | 2989 fps | 100% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 58,378 psi | 90% | 2963 fps | 96.7% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 55,869 psi | 86% | 2933 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 90% | 56,072 psi | 86% | 2940 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 56,811 psi | 87% | 2943 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 53,084 psi | 82% | 2910 fps | 96.6% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 55,071 psi | 85% | 2871 fps | 99.9% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 58,349 psi | 90% | 2949 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 55,970 psi | 86% | 2999 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 58,349 psi | 90% | 2897 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 58,349 psi | 90% | 2966 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 58,726 psi | 90% | 2989 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 57,377 psi | 88% | 2854 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 57,246 psi | 88% | 2851 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 56,463 psi | 87% | 2884 fps | 96.9% |
| Somchem S321 | <<locked>> | 86% | 57,203 psi | 88% | 2956 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 56,318 psi | 87% | 2848 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 57,783 psi | 89% | 2956 fps | 99.8% |
| Somchem S355 | <<locked>> | 98% | 57,972 psi | 89% | 2986 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,324 psi | 70% | 2884 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 86% | 56,942 psi | 88% | 2818 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 57,392 psi | 88% | 2841 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 58,595 psi | 90% | 2920 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 56,362 psi | 87% | 2890 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 56,275 psi | 87% | 2917 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 53,403 psi | 82% | 2933 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 88% | 56,507 psi | 87% | 2923 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 58,030 psi | 89% | 2936 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 52,402 psi | 81% | 2940 fps | 98.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,942 psi | 58% | 2743 fps | 96.4% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 54,114 psi | 83% | 2917 fps | 99.9% |
| Winchester 748 | <<locked>> | 88% | 56,101 psi | 86% | 2969 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 54,723 psi | 84% | 2999 fps | 96.9% |
| Winchester StaBALL Match | <<locked>> | 92% | 58,668 psi | 90% | 2999 fps | 100% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 44,947 psi | 69% | 2680 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,124 psi | 76% | 2792 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,681 psi | 58% | 2598 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,179 psi | 68% | 2743 fps | 99.9% |
| Accurate 2700 | <<locked>> | 90% | 52,083 psi | 80% | 2818 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 35,607 psi | 55% | 2582 fps | 99.5% |
| Accurate 4350 | <<locked>> | 92% | 38,798 psi | 60% | 2710 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 53,069 psi | 82% | 2759 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 53,476 psi | 82% | 2785 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 41,350 psi | 64% | 2697 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 80% | 35,215 psi | 54% | 2539 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 54,230 psi | 83% | 2884 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,381 psi | 67% | 2710 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 80% | 43,192 psi | 66% | 2710 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 50,473 psi | 78% | 2917 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 37,333 psi | 57% | 2703 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,490 psi | 53% | 2559 fps | 96.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 50,676 psi | 78% | 2782 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,159 psi | 57% | 2621 fps | 96.1% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,782 psi | 57% | 2664 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 84% | 34,084 psi | 52% | 2628 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 98% | 33,344 psi | 51% | 2605 fps | 95.4% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 52,533 psi | 81% | 2759 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,480 psi | 62% | 2694 fps | 96.4% |
| Bofors RP3 | <<locked>> | 80% | 33,910 psi | 52% | 2559 fps | 96.8% |
| Bofors RP7 | <<locked>> | 96% | 51,416 psi | 79% | 2851 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,353 psi | 70% | 2703 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,814 psi | 64% | 2723 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,934 psi | 71% | 2864 fps | 98.3% |
| Hodgdon H322 | <<locked>> | 80% | 49,719 psi | 76% | 2818 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 50,488 psi | 78% | 2838 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 39,943 psi | 61% | 2674 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 96% | 47,790 psi | 74% | 2881 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 41,669 psi | 64% | 2707 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 33,547 psi | 52% | 2556 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,478 psi | 58% | 2667 fps | 97.8% |
| Hodgdon Superformance | <<locked>> | 98% | 52,199 psi | 80% | 2972 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,962 psi | 40% | 1591 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,190 psi | 62% | 2661 fps | 97.9% |
| IMR 3031 | <<locked>> | 80% | 41,002 psi | 63% | 2710 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,941 psi | 57% | 2575 fps | 96.1% |
| IMR 4166 Enduron | <<locked>> | 86% | 47,732 psi | 73% | 2759 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 51,082 psi | 79% | 2746 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 50,256 psi | 77% | 2835 fps | 95.6% |
| IMR 4831 | <<locked>> | 92% | 37,333 psi | 57% | 2661 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 38,029 psi | 59% | 2654 fps | 97% |
| IMR 8208 XBR | <<locked>> | 80% | 43,381 psi | 67% | 2710 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 80% | 48,965 psi | 75% | 2799 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 40,190 psi | 62% | 2677 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 41,756 psi | 64% | 2638 fps | 97.9% |
| Lovex S062 | <<locked>> | 80% | 36,738 psi | 57% | 2582 fps | 97.9% |
| Lovex S065 | <<locked>> | 92% | 43,671 psi | 67% | 2723 fps | 95.6% |
| Lovex S070 | <<locked>> | 96% | 46,992 psi | 72% | 2805 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 40,640 psi | 63% | 2654 fps | 98.7% |
| Norma 202 | <<locked>> | 80% | 40,654 psi | 63% | 2664 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 36,579 psi | 56% | 2612 fps | 96.5% |
| Norma URP | <<locked>> | 92% | 39,102 psi | 60% | 2710 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 35,955 psi | 55% | 2618 fps | 96% |
| Ramshot Hunter | <<locked>> | 96% | 43,830 psi | 67% | 2812 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 43,424 psi | 67% | 2707 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,627 psi | 66% | 2730 fps | 98% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,862 psi | 72% | 2756 fps | 98.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,411 psi | 41% | 1631 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,834 psi | 75% | 2799 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 46,108 psi | 71% | 2769 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,682 psi | 60% | 2723 fps | 96.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 31,850 psi | 49% | 2579 fps | 97.6% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 38,551 psi | 59% | 2726 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 42,032 psi | 65% | 2799 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 44,411 psi | 68% | 2703 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,624 psi | 59% | 2602 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 80% | 31,966 psi | 49% | 2503 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 96% | 51,416 psi | 79% | 2851 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 92% | 43,671 psi | 67% | 2723 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,190 psi | 62% | 2677 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 36,738 psi | 57% | 2582 fps | 97.9% |
| Shooters World SW4350 | <<locked>> | 96% | 46,992 psi | 72% | 2805 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 51,372 psi | 79% | 2815 fps | 99.7% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 54,520 psi | 84% | 2897 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,069 psi | 51% | 2549 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 51,430 psi | 79% | 2802 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,452 psi | 64% | 2674 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,943 psi | 61% | 2664 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,032 psi | 65% | 2615 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,780 psi | 54% | 2477 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 49,458 psi | 76% | 2776 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 46,905 psi | 72% | 2792 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 41,698 psi | 64% | 2618 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,220 psi | 63% | 2677 fps | 97.6% |
| Somchem S355 | <<locked>> | 80% | 33,040 psi | 51% | 2513 fps | 95.8% |
| Somchem S365 | <<locked>> | 86% | 28,790 psi | 44% | 2484 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 47,587 psi | 73% | 2684 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,235 psi | 65% | 2612 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,739 psi | 58% | 2592 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,551 psi | 59% | 2598 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 31,299 psi | 48% | 2451 fps | 96.7% |
| Vihtavuori N160 | <<locked>> | 90% | 38,464 psi | 59% | 2661 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 43,337 psi | 67% | 2703 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 80% | 37,173 psi | 57% | 2585 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 37,826 psi | 58% | 2661 fps | 95% |
| Vihtavuori N555 | <<locked>> | 98% | 35,549 psi | 55% | 2684 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,850 psi | 49% | 2470 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 42,815 psi | 66% | 2749 fps | 99.5% |
| Winchester 760 | <<locked>> | 96% | 48,066 psi | 74% | 2884 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,189 psi | 60% | 2664 fps | 97.8% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 105 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 155gr | Lapua ScenarL. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,114 fps; across all powders the maximum-charge window runs from 1,781 fps to 3,114 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 (448 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 155.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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.