Load Specifications
Bullet:.308 | 181gr | Brenneke TUG
Bullet Manufacturer:Brenneke
Bullet Weight:181 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:1:13.5
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 181gr | Brenneke TUG bullet and 103 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 Winchester 760.
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% | 58,291 psi | 90% | 2671 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 57,377 psi | 88% | 2697 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,419 psi | 85% | 2717 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 56,188 psi | 86% | 2713 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,367 psi | 68% | 2621 fps | 97.6% |
| Accurate 4064 | <<locked>> | 90% | 57,406 psi | 88% | 2746 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,798 psi | 89% | 2848 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 57,464 psi | 88% | 2782 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 58,349 psi | 90% | 2782 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,127 psi | 80% | 2772 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,420 psi | 87% | 2730 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,711 psi | 89% | 2700 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,609 psi | 89% | 2910 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 51,735 psi | 80% | 2766 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,158 psi | 85% | 2756 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,651 psi | 86% | 2776 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 58,494 psi | 90% | 2897 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,072 psi | 86% | 2877 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,966 psi | 78% | 2759 fps | 96.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,192 psi | 65% | 2651 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,340 psi | 73% | 2818 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,363 psi | 88% | 2802 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 56,101 psi | 86% | 2772 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,666 psi | 86% | 2746 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,914 psi | 89% | 2710 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,854 psi | 86% | 2759 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 58,160 psi | 89% | 2864 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,913 psi | 88% | 2789 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 96% | 56,623 psi | 87% | 2844 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 94% | 56,884 psi | 88% | 2802 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 86% | 58,088 psi | 89% | 2792 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,868 psi | 84% | 2772 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,754 psi | 89% | 2825 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,261 psi | 88% | 2884 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,766 psi | 55% | 1670 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,637 psi | 86% | 2743 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 58,349 psi | 90% | 2766 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,885 psi | 89% | 2762 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,841 psi | 89% | 2753 fps | 98.9% |
| IMR 4350 | <<locked>> | 98% | 56,043 psi | 86% | 2772 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,551 psi | 89% | 2776 fps | 98.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 57,972 psi | 89% | 2835 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 57,087 psi | 88% | 2805 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,420 psi | 87% | 2730 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,595 psi | 89% | 2756 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,797 psi | 87% | 2710 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,783 psi | 89% | 2756 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 57,261 psi | 88% | 2772 fps | 99.5% |
| Lovex S070 | <<locked>> | 98% | 58,175 psi | 89% | 2808 fps | 99.1% |
| Norma 201 | <<locked>> | 86% | 56,043 psi | 86% | 2723 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,681 psi | 87% | 2723 fps | 100% |
| Norma 203B | <<locked>> | 90% | 58,653 psi | 90% | 2815 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,797 psi | 87% | 2825 fps | 97.3% |
| Norma MRPᴾ | <<locked>> | 100% | 47,166 psi | 73% | 2772 fps | 97.2% |
| Norma URP | <<locked>> | 98% | 56,318 psi | 87% | 2828 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 55,680 psi | 86% | 2792 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,042 psi | 85% | 2828 fps | 99.2% |
| Ramshot TAC | <<locked>> | 84% | 56,478 psi | 87% | 2756 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,304 psi | 87% | 2769 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,956 psi | 88% | 2733 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,318 psi | 56% | 1713 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,956 psi | 88% | 2772 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,420 psi | 87% | 2844 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,782 psi | 86% | 2874 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,508 psi | 88% | 2871 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,521 psi | 87% | 2897 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 84% | 57,145 psi | 88% | 2703 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,739 psi | 87% | 2726 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,985 psi | 86% | 2766 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,647 psi | 76% | 2740 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 94% | 55,666 psi | 86% | 2746 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 57,261 psi | 88% | 2772 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,595 psi | 89% | 2756 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,783 psi | 89% | 2756 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 58,175 psi | 89% | 2808 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,522 psi | 88% | 2822 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,056 psi | 85% | 2733 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,782 psi | 86% | 2753 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,464 psi | 88% | 2661 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,856 psi | 89% | 2657 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,508 psi | 88% | 2730 fps | 98.8% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,197 psi | 76% | 2733 fps | 96.2% |
| Somchem S321 | <<locked>> | 82% | 57,725 psi | 89% | 2762 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,782 psi | 87% | 2657 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 58,479 psi | 90% | 2772 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 56,188 psi | 86% | 2762 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,723 psi | 84% | 2831 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,633 psi | 78% | 2723 fps | 97.4% |
| Vihtavuori N130 | <<locked>> | 82% | 57,130 psi | 88% | 2618 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,754 psi | 89% | 2641 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,753 psi | 87% | 2687 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,203 psi | 88% | 2700 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,566 psi | 89% | 2736 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,143 psi | 85% | 2772 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 84% | 56,768 psi | 87% | 2726 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,448 psi | 85% | 2700 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 57,972 psi | 89% | 2831 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,644 psi | 72% | 2726 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,172 psi | 85% | 2749 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 57,174 psi | 88% | 2779 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,623 psi | 87% | 2844 fps | 98.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,695 psi | 58% | 2671 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,927 psi | 86% | 2762 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% | 51,692 psi | 80% | 2585 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,353 psi | 68% | 2520 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,793 psi | 80% | 2667 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,134 psi | 66% | 2497 fps | 95.3% |
| Accurate 3100 | <<locked>> | 94% | 36,143 psi | 56% | 2464 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 41,959 psi | 65% | 2520 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,082 psi | 48% | 2359 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 47,616 psi | 73% | 2631 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 40,596 psi | 62% | 2490 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 98% | 48,675 psi | 75% | 2713 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,719 psi | 76% | 2635 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,618 psi | 78% | 2612 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,555 psi | 67% | 2674 fps | 99.2% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 48,602 psi | 75% | 2717 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,379 psi | 62% | 2513 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,279 psi | 67% | 2575 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,343 psi | 48% | 2372 fps | 95.4% |
| Alliant Reloder-17 | 51.6 gr | 80% | 34,940 psi | 54% | 2493 fps | 98.5% |
| Alliant Reloder-19 | <<locked>> | 98% | 47,906 psi | 74% | 2707 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 86% | 27,282 psi | 42% | 2287 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 90% | 33,330 psi | 51% | 2510 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,862 psi | 72% | 2638 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 40,132 psi | 62% | 2516 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 43,497 psi | 67% | 2543 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,358 psi | 79% | 2618 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,849 psi | 75% | 2657 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 54,099 psi | 83% | 2805 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,973 psi | 63% | 2523 fps | 97.8% |
| Hodgdon H414 | <<locked>> | 86% | 40,741 psi | 63% | 2572 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 86% | 44,324 psi | 68% | 2592 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 48,095 psi | 74% | 2641 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,834 psi | 44% | 2277 fps | 96.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,280 psi | 68% | 2618 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 42,960 psi | 66% | 2641 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,760 psi | 41% | 1493 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,977 psi | 71% | 2592 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 48,051 psi | 74% | 2625 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,641 psi | 66% | 2523 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,991 psi | 69% | 2543 fps | 96.6% |
| IMR 4350 | <<locked>> | 88% | 41,089 psi | 63% | 2520 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,871 psi | 61% | 2470 fps | 95.1% |
| IMR 4831 | <<locked>> | 80% | 30,255 psi | 47% | 2323 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 44,338 psi | 68% | 2602 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 49,719 psi | 76% | 2635 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,195 psi | 73% | 2608 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,427 psi | 73% | 2569 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 42,656 psi | 66% | 2523 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 34,983 psi | 54% | 2372 fps | 95.1% |
| Lovex S070 | <<locked>> | 86% | 40,103 psi | 62% | 2503 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 46,586 psi | 72% | 2582 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,079 psi | 72% | 2585 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,641 psi | 66% | 2562 fps | 99.4% |
| Norma 204 | <<locked>> | 92% | 46,441 psi | 71% | 2657 fps | 95% |
| Norma MRP | <<locked>> | 96% | 41,133 psi | 63% | 2654 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 31,488 psi | 48% | 2362 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 42,337 psi | 65% | 2579 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 37,202 psi | 57% | 2507 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 49,719 psi | 76% | 2651 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,400 psi | 76% | 2667 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,417 psi | 82% | 2680 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,108 psi | 42% | 1529 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,234 psi | 63% | 2507 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,963 psi | 71% | 2680 fps | 99.5% |
| ReloadSwiss RS 60 | 51.6 gr | 80% | 37,159 psi | 57% | 2552 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 32,909 psi | 51% | 2428 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 35,085 psi | 54% | 2487 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 50,647 psi | 78% | 2612 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,382 psi | 68% | 2536 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 37,956 psi | 58% | 2467 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 98% | 46,572 psi | 72% | 2687 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 86% | 43,497 psi | 67% | 2543 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,983 psi | 54% | 2372 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,195 psi | 73% | 2608 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,656 psi | 66% | 2523 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 40,103 psi | 62% | 2503 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,769 psi | 60% | 2513 fps | 98.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,138 psi | 74% | 2628 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,093 psi | 71% | 2602 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,761 psi | 73% | 2526 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,972 psi | 61% | 2402 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 39,044 psi | 60% | 2421 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 46,137 psi | 71% | 2680 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 53,809 psi | 83% | 2710 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 47,413 psi | 73% | 2526 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,732 psi | 73% | 2618 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 38,493 psi | 59% | 2467 fps | 99.1% |
| Somchem S365 | <<locked>> | 80% | 28,152 psi | 43% | 2316 fps | 97.5% |
| Somchem S385 | <<locked>> | 94% | 41,452 psi | 64% | 2562 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 53,737 psi | 83% | 2575 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,182 psi | 74% | 2516 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,077 psi | 68% | 2510 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,686 psi | 69% | 2523 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,767 psi | 57% | 2408 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 32,735 psi | 50% | 2362 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 49,821 psi | 77% | 2628 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,033 psi | 66% | 2516 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,314 psi | 50% | 2365 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 86% | 29,530 psi | 45% | 2362 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,329 psi | 50% | 2339 fps | 97.8% |
| Winchester 748 | <<locked>> | 80% | 49,922 psi | 77% | 2677 fps | 100% |
| Winchester 760 | 54.3 gr | 86% | 40,741 psi | 63% | 2572 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,427 psi | 42% | 2362 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,774 psi | 70% | 2608 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 103 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 181gr | Brenneke TUG. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,910 fps; across all powders the maximum-charge window runs from 1,670 fps to 2,910 fps. Accurate 3100 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 181.0 gr projectile in 0.308" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint 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, Winchester 760 rank at the top here: for .300 Rem. SA Ultra Mag. with the .308 | 181gr | Brenneke TUG 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.