
Load Specifications
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 180gr | CutEdge MTH bullet and 106 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, Alliant Reloder-17 and ReloadSwiss RS 60.
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% | 56,985 psi | 88% | 2644 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 55,288 psi | 85% | 2674 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 54,969 psi | 85% | 2664 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 57,450 psi | 88% | 2736 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 58,769 psi | 90% | 2730 fps | 97.9% |
| Accurate 4064 | <<locked>> | 94% | 58,711 psi | 90% | 2759 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 55,071 psi | 85% | 2799 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 88% | 56,159 psi | 86% | 2753 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 57,348 psi | 88% | 2749 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 86% | 55,405 psi | 85% | 2707 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 55,927 psi | 86% | 2671 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 57,101 psi | 88% | 2805 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 55,883 psi | 86% | 2867 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 57,159 psi | 88% | 2769 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 56,666 psi | 87% | 2648 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 57,711 psi | 89% | 2792 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 53,084 psi | 82% | 2805 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 98% | 58,117 psi | 89% | 2894 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,666 psi | 58% | 2549 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,756 psi | 64% | 2697 fps | 97.9% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 58,523 psi | 90% | 2631 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 56,260 psi | 87% | 2769 fps | 99.9% |
| Bofors RP3 | <<locked>> | 94% | 57,856 psi | 89% | 2789 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 57,812 psi | 89% | 2759 fps | 98% |
| Hodgdon Benchmark | <<locked>> | 86% | 57,072 psi | 88% | 2684 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 58,247 psi | 90% | 2782 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 56,797 psi | 87% | 2835 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 55,970 psi | 86% | 2694 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 57,072 psi | 88% | 2720 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 58,798 psi | 90% | 2799 fps | 99.8% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 58,363 psi | 90% | 2854 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 96% | 55,477 psi | 85% | 2762 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 88% | 56,768 psi | 87% | 2759 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,153 psi | 76% | 2680 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 56,318 psi | 87% | 2795 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 55,506 psi | 85% | 2838 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,230 psi | 54% | 1644 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 58,204 psi | 90% | 2762 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 56,782 psi | 87% | 2740 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 56,869 psi | 87% | 2736 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 57,014 psi | 88% | 2720 fps | 98.3% |
| IMR 4198 | <<locked>> | 82% | 56,898 psi | 88% | 2608 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 54,534 psi | 84% | 2733 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 96% | 56,579 psi | 87% | 2743 fps | 98.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,982 psi | 80% | 2740 fps | 99.6% |
| IMR 4895 | <<locked>> | 90% | 55,753 psi | 86% | 2776 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 55,405 psi | 85% | 2707 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 55,245 psi | 85% | 2687 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 55,970 psi | 86% | 2726 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 55,767 psi | 86% | 2680 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 56,420 psi | 87% | 2730 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 55,347 psi | 85% | 2730 fps | 99.1% |
| Lovex S070ᴾ | <<locked>> | 100% | 56,391 psi | 87% | 2766 fps | 98.5% |
| Norma 201 | <<locked>> | 90% | 58,146 psi | 89% | 2740 fps | 100% |
| Norma 202 | <<locked>> | 88% | 55,448 psi | 85% | 2697 fps | 100% |
| Norma 203B | <<locked>> | 92% | 56,869 psi | 87% | 2779 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 55,288 psi | 85% | 2782 fps | 96.4% |
| Norma URPᴾ | <<locked>> | 100% | 54,288 psi | 84% | 2789 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 92% | 57,899 psi | 89% | 2808 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 53,098 psi | 82% | 2785 fps | 98.6% |
| Ramshot TAC | <<locked>> | 86% | 55,506 psi | 85% | 2723 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 86% | 54,998 psi | 85% | 2740 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 56,347 psi | 87% | 2710 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,723 psi | 55% | 1683 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 58,233 psi | 90% | 2730 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 55,463 psi | 85% | 2733 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 58,740 psi | 90% | 2864 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 57,928 psi | 89% | 2890 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 54,911 psi | 84% | 2825 fps | 99.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 54,853 psi | 84% | 2854 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 86% | 55,622 psi | 86% | 2674 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 58,653 psi | 90% | 2740 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 57,421 psi | 88% | 2776 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 57,812 psi | 89% | 2759 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 98% | 55,347 psi | 85% | 2730 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 88% | 55,970 psi | 86% | 2726 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 56,420 psi | 87% | 2730 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 56,391 psi | 87% | 2766 fps | 98.5% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 57,943 psi | 89% | 2703 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 55,767 psi | 86% | 2789 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 57,856 psi | 89% | 2671 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 57,696 psi | 89% | 2756 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 58,421 psi | 90% | 2776 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 56,739 psi | 87% | 2638 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 56,681 psi | 87% | 2635 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 56,014 psi | 86% | 2687 fps | 98.2% |
| Somchem S321 | <<locked>> | 84% | 56,579 psi | 87% | 2736 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,738 psi | 86% | 2635 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 57,406 psi | 88% | 2746 fps | 100% |
| Somchem S355 | <<locked>> | 96% | 57,711 psi | 89% | 2772 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,530 psi | 75% | 2740 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 56,376 psi | 87% | 2598 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 56,985 psi | 88% | 2621 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 58,436 psi | 90% | 2700 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 55,999 psi | 86% | 2677 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 55,767 psi | 86% | 2707 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 57,000 psi | 88% | 2785 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 86% | 55,811 psi | 86% | 2703 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 57,740 psi | 89% | 2720 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 55,985 psi | 86% | 2792 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,915 psi | 63% | 2618 fps | 98.6% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 57,624 psi | 89% | 2766 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 55,782 psi | 86% | 2749 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 58,697 psi | 90% | 2858 fps | 98.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,475 psi | 51% | 2543 fps | 98.4% |
| Winchester StaBALL Match | <<locked>> | 90% | 58,305 psi | 90% | 2785 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% | 47,239 psi | 73% | 2516 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 51,692 psi | 80% | 2625 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,479 psi | 61% | 2438 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,775 psi | 72% | 2589 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 45,078 psi | 69% | 2516 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 37,347 psi | 57% | 2434 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 33,663 psi | 52% | 2421 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 43,569 psi | 67% | 2549 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 36,956 psi | 57% | 2405 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,716 psi | 70% | 2559 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 45,876 psi | 71% | 2543 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 53,606 psi | 82% | 2753 fps | 100% |
| Alliant Power Pro 2000-MR | 49.1 gr | 80% | 39,523 psi | 61% | 2579 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,390 psi | 56% | 2425 fps | 98.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 53,229 psi | 82% | 2605 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,233 psi | 60% | 2487 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 84% | 32,082 psi | 49% | 2379 fps | 95% |
| Alliant Reloder-17 | 48.4 gr | 80% | 31,473 psi | 48% | 2395 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 29,341 psi | 45% | 2339 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 96% | 36,376 psi | 56% | 2572 fps | 96% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 55,013 psi | 85% | 2589 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,743 psi | 66% | 2556 fps | 98.4% |
| Bofors RP3 | <<locked>> | 80% | 35,911 psi | 55% | 2428 fps | 98.7% |
| Bofors RP7 | <<locked>> | 90% | 44,947 psi | 69% | 2556 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,514 psi | 73% | 2546 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,324 psi | 68% | 2579 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,313 psi | 76% | 2720 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 80% | 52,257 psi | 80% | 2644 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 53,461 psi | 82% | 2674 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,869 psi | 57% | 2431 fps | 96.2% |
| Hodgdon H414 | <<locked>> | 90% | 41,713 psi | 64% | 2579 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 92% | 48,863 psi | 75% | 2657 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 43,961 psi | 68% | 2559 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 29,269 psi | 45% | 2283 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,030 psi | 62% | 2536 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 92% | 44,715 psi | 69% | 2657 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,121 psi | 40% | 1467 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,134 psi | 65% | 2513 fps | 99.3% |
| IMR 3031 | <<locked>> | 80% | 43,468 psi | 67% | 2552 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,769 psi | 60% | 2438 fps | 98.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 41,278 psi | 64% | 2457 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 53,432 psi | 82% | 2562 fps | 100% |
| IMR 4350 | <<locked>> | 94% | 45,237 psi | 70% | 2582 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 88% | 44,077 psi | 68% | 2539 fps | 95.7% |
| IMR 4831 | <<locked>> | 86% | 32,634 psi | 50% | 2379 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 40,219 psi | 62% | 2516 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 45,716 psi | 70% | 2559 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 51,692 psi | 80% | 2638 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,467 psi | 65% | 2530 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,642 psi | 67% | 2490 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 38,537 psi | 59% | 2438 fps | 99.3% |
| Lovex S065 | <<locked>> | 86% | 38,218 psi | 59% | 2434 fps | 95.7% |
| Lovex S070 | <<locked>> | 90% | 41,060 psi | 63% | 2510 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 42,511 psi | 65% | 2503 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 42,815 psi | 66% | 2510 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,624 psi | 59% | 2477 fps | 98.4% |
| Norma 204 | <<locked>> | 98% | 51,590 psi | 79% | 2726 fps | 95.6% |
| Norma URP | <<locked>> | 86% | 34,127 psi | 53% | 2421 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 38,174 psi | 59% | 2487 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 38,305 psi | 59% | 2516 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 45,556 psi | 70% | 2566 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,165 psi | 69% | 2585 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,313 psi | 76% | 2605 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,411 psi | 41% | 1499 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 51,271 psi | 79% | 2635 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 39,885 psi | 61% | 2467 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,292 psi | 64% | 2585 fps | 98.5% |
| ReloadSwiss RS 60 | 48.4 gr | 80% | 33,576 psi | 52% | 2461 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 33,460 psi | 51% | 2434 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 36,245 psi | 56% | 2500 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 46,340 psi | 71% | 2539 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,335 psi | 62% | 2454 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 33,750 psi | 52% | 2372 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 90% | 44,947 psi | 69% | 2556 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,218 psi | 59% | 2434 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,467 psi | 65% | 2530 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,537 psi | 59% | 2438 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 90% | 41,060 psi | 63% | 2510 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 54,215 psi | 83% | 2654 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,896 psi | 54% | 2425 fps | 97.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 54,317 psi | 84% | 2628 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,801 psi | 67% | 2539 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,076 psi | 65% | 2520 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,106 psi | 68% | 2457 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,579 psi | 56% | 2333 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 43,004 psi | 66% | 2484 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 49,313 psi | 76% | 2635 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,598 psi | 67% | 2461 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,526 psi | 67% | 2536 fps | 99.2% |
| Somchem S355 | <<locked>> | 80% | 34,708 psi | 53% | 2382 fps | 97.9% |
| Somchem S365 | <<locked>> | 80% | 24,903 psi | 38% | 2208 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 49,850 psi | 77% | 2516 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,483 psi | 68% | 2454 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,943 psi | 61% | 2441 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,654 psi | 63% | 2451 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,011 psi | 51% | 2323 fps | 98.6% |
| Vihtavuori N160 | <<locked>> | 84% | 33,489 psi | 52% | 2372 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 45,759 psi | 70% | 2552 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 39,073 psi | 60% | 2441 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 32,924 psi | 51% | 2375 fps | 95% |
| Vihtavuori N555 | <<locked>> | 92% | 31,357 psi | 48% | 2408 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,283 psi | 45% | 2247 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 45,498 psi | 70% | 2598 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 41,930 psi | 65% | 2585 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 96% | 29,327 psi | 45% | 2411 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,466 psi | 64% | 2523 fps | 99.3% |
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 106 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 180gr | CutEdge MTH. Alliant Reloder-17 delivers the highest muzzle velocity at 2,894 fps; across all powders the maximum-charge window runs from 1,644 fps to 2,894 fps. Accurate 4350 gives the best case fill at 100 %, and 106 of the 106 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .300 Rem. SA Ultra Mag. with the .308 | 180gr | CutEdge MTH 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.