Load Specifications
Bullet Manufacturer:SAKO
Bullet Weight:180 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:1:15.0
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 180gr | Sako Hammerhead 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 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% | 58,262 psi | 90% | 2677 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 57,348 psi | 88% | 2703 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,390 psi | 85% | 2723 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 56,115 psi | 86% | 2720 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,280 psi | 68% | 2628 fps | 97.5% |
| Accurate 4064 | <<locked>> | 90% | 57,363 psi | 88% | 2753 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,725 psi | 89% | 2851 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 57,421 psi | 88% | 2789 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 58,305 psi | 90% | 2785 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,025 psi | 80% | 2776 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,420 psi | 87% | 2740 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,740 psi | 89% | 2707 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,508 psi | 88% | 2913 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 51,605 psi | 79% | 2769 fps | 96.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,347 psi | 85% | 2762 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,608 psi | 86% | 2782 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 58,363 psi | 90% | 2904 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,318 psi | 87% | 2887 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,894 psi | 78% | 2762 fps | 96.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,090 psi | 65% | 2657 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,413 psi | 73% | 2825 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,276 psi | 88% | 2805 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 56,028 psi | 86% | 2779 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,898 psi | 86% | 2756 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,914 psi | 89% | 2717 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,796 psi | 86% | 2766 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 58,175 psi | 89% | 2871 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,840 psi | 87% | 2795 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 96% | 56,492 psi | 87% | 2848 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 94% | 57,087 psi | 88% | 2812 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 86% | 58,073 psi | 89% | 2799 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,737 psi | 84% | 2779 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,667 psi | 89% | 2828 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,130 psi | 88% | 2890 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,810 psi | 55% | 1677 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,622 psi | 86% | 2749 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 58,349 psi | 90% | 2772 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,841 psi | 89% | 2769 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,798 psi | 89% | 2756 fps | 98.8% |
| IMR 4350 | <<locked>> | 98% | 56,217 psi | 86% | 2782 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,464 psi | 88% | 2782 fps | 98.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 57,885 psi | 89% | 2838 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 57,043 psi | 88% | 2808 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,420 psi | 87% | 2740 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,551 psi | 89% | 2762 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,507 psi | 87% | 2713 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,740 psi | 89% | 2762 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 57,174 psi | 88% | 2779 fps | 99.5% |
| Lovex S070 | <<locked>> | 98% | 58,044 psi | 89% | 2812 fps | 99% |
| Norma 201 | <<locked>> | 86% | 56,043 psi | 86% | 2730 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,666 psi | 87% | 2730 fps | 100% |
| Norma 203B | <<locked>> | 90% | 58,595 psi | 90% | 2822 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,985 psi | 88% | 2831 fps | 97.3% |
| Norma MRPᴾ | <<locked>> | 100% | 47,050 psi | 72% | 2779 fps | 97.1% |
| Norma URP | <<locked>> | 98% | 56,260 psi | 87% | 2835 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 55,622 psi | 86% | 2799 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 58,755 psi | 90% | 2887 fps | 99.5% |
| Ramshot TAC | <<locked>> | 84% | 56,420 psi | 87% | 2762 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,246 psi | 87% | 2776 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,927 psi | 88% | 2740 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,361 psi | 56% | 1716 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,927 psi | 88% | 2779 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,362 psi | 87% | 2848 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,956 psi | 86% | 2884 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,348 psi | 88% | 2874 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,362 psi | 87% | 2900 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 84% | 57,188 psi | 88% | 2710 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,724 psi | 87% | 2733 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,912 psi | 86% | 2772 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,879 psi | 77% | 2749 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 94% | 55,898 psi | 86% | 2756 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 57,174 psi | 88% | 2779 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,551 psi | 89% | 2762 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,740 psi | 89% | 2762 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 58,044 psi | 89% | 2812 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,421 psi | 88% | 2828 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,984 psi | 85% | 2740 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,738 psi | 86% | 2759 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,406 psi | 88% | 2667 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,827 psi | 89% | 2664 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,406 psi | 88% | 2733 fps | 98.7% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,385 psi | 76% | 2743 fps | 96.2% |
| Somchem S321 | <<locked>> | 82% | 57,696 psi | 89% | 2769 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,768 psi | 87% | 2664 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 58,392 psi | 90% | 2779 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 56,130 psi | 86% | 2769 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,592 psi | 84% | 2838 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,546 psi | 78% | 2726 fps | 97.3% |
| Vihtavuori N130 | <<locked>> | 82% | 57,159 psi | 88% | 2628 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,725 psi | 89% | 2648 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,695 psi | 87% | 2694 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,174 psi | 88% | 2707 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,464 psi | 88% | 2743 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,347 psi | 85% | 2782 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 84% | 56,753 psi | 87% | 2736 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,390 psi | 85% | 2710 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 57,885 psi | 89% | 2838 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,514 psi | 72% | 2730 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,332 psi | 85% | 2759 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 57,130 psi | 88% | 2785 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,797 psi | 87% | 2851 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,623 psi | 58% | 2674 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,869 psi | 86% | 2769 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% | 51,474 psi | 79% | 2589 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,353 psi | 68% | 2526 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,779 psi | 80% | 2674 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,149 psi | 66% | 2503 fps | 95.2% |
| Accurate 3100 | <<locked>> | 94% | 36,085 psi | 56% | 2467 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 41,974 psi | 65% | 2526 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,082 psi | 48% | 2362 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 47,645 psi | 73% | 2638 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 40,408 psi | 62% | 2490 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 98% | 48,834 psi | 75% | 2723 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,690 psi | 76% | 2641 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,676 psi | 78% | 2618 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,540 psi | 67% | 2680 fps | 99.2% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 48,544 psi | 75% | 2720 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,422 psi | 62% | 2516 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,308 psi | 67% | 2579 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,357 psi | 48% | 2375 fps | 95.3% |
| Alliant Reloder-17 | 51.8 gr | 80% | 34,940 psi | 54% | 2497 fps | 98.4% |
| Alliant Reloder-19 | <<locked>> | 98% | 47,863 psi | 74% | 2710 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 88% | 28,979 psi | 45% | 2343 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 90% | 33,257 psi | 51% | 2513 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,833 psi | 72% | 2644 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 40,161 psi | 62% | 2523 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 43,497 psi | 67% | 2546 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,126 psi | 79% | 2621 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,834 psi | 75% | 2664 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 54,070 psi | 83% | 2812 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,959 psi | 63% | 2530 fps | 97.8% |
| Hodgdon H414 | <<locked>> | 86% | 40,698 psi | 63% | 2575 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 86% | 44,295 psi | 68% | 2598 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 48,095 psi | 74% | 2648 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,848 psi | 44% | 2283 fps | 96.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,280 psi | 68% | 2625 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 42,888 psi | 66% | 2644 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,629 psi | 41% | 1496 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,006 psi | 71% | 2598 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 48,037 psi | 74% | 2635 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,453 psi | 65% | 2526 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,962 psi | 69% | 2549 fps | 96.6% |
| IMR 4350 | <<locked>> | 90% | 43,874 psi | 67% | 2579 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,885 psi | 61% | 2477 fps | 95% |
| IMR 4831 | <<locked>> | 82% | 32,300 psi | 50% | 2379 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 44,338 psi | 68% | 2608 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 49,690 psi | 76% | 2641 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,152 psi | 73% | 2615 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,210 psi | 73% | 2569 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 42,453 psi | 65% | 2526 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 34,998 psi | 54% | 2379 fps | 95.1% |
| Lovex S070 | <<locked>> | 86% | 40,089 psi | 62% | 2507 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 46,572 psi | 72% | 2589 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,065 psi | 72% | 2592 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,656 psi | 66% | 2569 fps | 99.4% |
| Norma 204 | <<locked>> | 94% | 49,661 psi | 76% | 2720 fps | 95.8% |
| Norma MRP | <<locked>> | 96% | 41,075 psi | 63% | 2657 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 31,343 psi | 48% | 2362 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 42,322 psi | 65% | 2585 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 37,173 psi | 57% | 2510 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 49,443 psi | 76% | 2651 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,385 psi | 76% | 2671 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,403 psi | 82% | 2687 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,180 psi | 42% | 1535 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,205 psi | 63% | 2510 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,948 psi | 71% | 2684 fps | 99.5% |
| ReloadSwiss RS 60 | 51.8 gr | 80% | 37,144 psi | 57% | 2559 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 32,895 psi | 51% | 2431 fps | 95.5% |
| ReloadSwiss RS 70 | 55.2 gr | 84% | 35,099 psi | 54% | 2493 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 50,662 psi | 78% | 2618 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,382 psi | 68% | 2543 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 37,753 psi | 58% | 2467 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 98% | 46,456 psi | 71% | 2690 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 86% | 43,497 psi | 67% | 2546 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,998 psi | 54% | 2379 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,152 psi | 73% | 2615 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,453 psi | 65% | 2526 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 40,089 psi | 62% | 2507 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,783 psi | 60% | 2520 fps | 98.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,124 psi | 74% | 2635 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,050 psi | 71% | 2608 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,805 psi | 74% | 2533 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,972 psi | 61% | 2408 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,582 psi | 64% | 2477 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 46,021 psi | 71% | 2684 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 53,780 psi | 83% | 2717 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 47,442 psi | 73% | 2533 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,718 psi | 73% | 2625 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 38,493 psi | 59% | 2474 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 28,137 psi | 43% | 2320 fps | 97.4% |
| Somchem S385 | <<locked>> | 94% | 41,597 psi | 64% | 2572 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 53,751 psi | 83% | 2582 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,196 psi | 74% | 2523 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,150 psi | 68% | 2516 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,440 psi | 68% | 2526 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,579 psi | 56% | 2408 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 32,750 psi | 50% | 2369 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 49,806 psi | 77% | 2635 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,047 psi | 66% | 2523 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,329 psi | 50% | 2369 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 86% | 29,312 psi | 45% | 2362 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,314 psi | 50% | 2343 fps | 97.7% |
| Winchester 748 | <<locked>> | 80% | 49,908 psi | 77% | 2684 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 40,698 psi | 63% | 2575 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,369 psi | 42% | 2365 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,759 psi | 70% | 2615 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 | 180gr | Sako Hammerhead. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,913 fps; across all powders the maximum-charge window runs from 1,677 fps to 2,913 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 180.0 gr projectile in 0.308" calls for a 1:15.0 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, ReloadSwiss RS 70 rank at the top here: for .300 Rem. SA Ultra Mag. with the .308 | 180gr | Sako Hammerhead 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.