Load Specifications
Bullet:.308 | 180gr | Swift A-Frame
Bullet Manufacturer:Swift
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:1:14.0
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 180gr | Swift A-Frame bullet and 102 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, Hodgdon Superformance 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>> | 84% | 57,276 psi | 88% | 2657 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,333 psi | 87% | 2687 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 58,059 psi | 89% | 2753 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,187 psi | 85% | 2697 fps | 97.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,395 psi | 67% | 2605 fps | 97.2% |
| Accurate 4064 | <<locked>> | 90% | 56,434 psi | 87% | 2736 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 56,594 psi | 87% | 2831 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 86% | 56,565 psi | 87% | 2769 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 57,551 psi | 89% | 2769 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 50,966 psi | 78% | 2749 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,535 psi | 85% | 2720 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,637 psi | 87% | 2687 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,420 psi | 87% | 2890 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,725 psi | 89% | 2789 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 58,291 psi | 90% | 2812 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 57,334 psi | 88% | 2881 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 54,984 psi | 85% | 2864 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,067 psi | 77% | 2743 fps | 96% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,278 psi | 64% | 2635 fps | 99.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,180 psi | 71% | 2795 fps | 99.1% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,231 psi | 87% | 2785 fps | 99.9% |
| Bofors RP3 | <<locked>> | 92% | 58,508 psi | 90% | 2805 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 58,421 psi | 90% | 2785 fps | 98.4% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,058 psi | 88% | 2697 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 58,784 psi | 90% | 2799 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 56,942 psi | 88% | 2848 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 55,782 psi | 86% | 2772 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 96% | 55,535 psi | 85% | 2828 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 94% | 56,130 psi | 86% | 2789 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 86% | 57,203 psi | 88% | 2779 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,722 psi | 83% | 2759 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 56,826 psi | 87% | 2815 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,028 psi | 86% | 2864 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,650 psi | 55% | 1667 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 58,247 psi | 90% | 2779 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 57,319 psi | 88% | 2756 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,043 psi | 88% | 2753 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,826 psi | 87% | 2736 fps | 98.6% |
| IMR 4350ᴾ | <<locked>> | 100% | 58,537 psi | 90% | 2808 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,507 psi | 87% | 2759 fps | 98.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,884 psi | 88% | 2818 fps | 99.9% |
| IMR 4895 | <<locked>> | 88% | 56,188 psi | 86% | 2792 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,535 psi | 85% | 2720 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,637 psi | 87% | 2746 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,956 psi | 86% | 2697 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 56,855 psi | 87% | 2746 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,202 psi | 86% | 2756 fps | 99.4% |
| Lovex S070 | <<locked>> | 98% | 57,145 psi | 88% | 2792 fps | 98.9% |
| Norma 201 | <<locked>> | 88% | 58,668 psi | 90% | 2759 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,753 psi | 86% | 2713 fps | 100% |
| Norma 203B | <<locked>> | 90% | 57,450 psi | 88% | 2802 fps | 100% |
| Norma 204 | <<locked>> | 98% | 55,854 psi | 86% | 2808 fps | 96.9% |
| Norma MRPᴾ | <<locked>> | 100% | 46,079 psi | 71% | 2753 fps | 96.7% |
| Norma URP | <<locked>> | 98% | 55,201 psi | 85% | 2815 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 90% | 58,378 psi | 90% | 2828 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 57,551 psi | 89% | 2864 fps | 99.4% |
| Ramshot TAC | <<locked>> | 84% | 55,767 psi | 86% | 2743 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,492 psi | 85% | 2759 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,173 psi | 86% | 2720 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,187 psi | 56% | 1706 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 58,305 psi | 90% | 2743 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,956 psi | 86% | 2756 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,405 psi | 85% | 2831 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 58,610 psi | 90% | 2910 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,043 psi | 86% | 2851 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,274 psi | 85% | 2877 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 84% | 56,173 psi | 86% | 2694 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,840 psi | 86% | 2713 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 58,378 psi | 90% | 2799 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 48,689 psi | 75% | 2723 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 96% | 58,421 psi | 90% | 2785 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,202 psi | 86% | 2756 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,637 psi | 87% | 2746 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,855 psi | 87% | 2746 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 57,145 psi | 88% | 2792 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,391 psi | 87% | 2808 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 58,030 psi | 89% | 2776 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 58,421 psi | 90% | 2789 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,507 psi | 87% | 2648 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,000 psi | 88% | 2651 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,521 psi | 87% | 2713 fps | 98.5% |
| Somchem S321 | <<locked>> | 82% | 56,579 psi | 87% | 2746 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,912 psi | 86% | 2648 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 57,334 psi | 88% | 2759 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 58,566 psi | 90% | 2795 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,229 psi | 82% | 2815 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 49,385 psi | 76% | 2703 fps | 96.9% |
| Vihtavuori N130 | <<locked>> | 82% | 56,173 psi | 86% | 2608 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,797 psi | 87% | 2631 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,738 psi | 86% | 2674 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,347 psi | 87% | 2690 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,405 psi | 87% | 2723 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 57,986 psi | 89% | 2812 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 84% | 55,883 psi | 86% | 2717 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 58,030 psi | 89% | 2736 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,927 psi | 88% | 2818 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,542 psi | 70% | 2707 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 58,102 psi | 89% | 2789 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 55,898 psi | 86% | 2762 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,535 psi | 85% | 2828 fps | 98.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,825 psi | 57% | 2648 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 88% | 58,581 psi | 90% | 2799 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% | 50,705 psi | 78% | 2572 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,642 psi | 67% | 2510 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,865 psi | 78% | 2657 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 45,368 psi | 70% | 2539 fps | 95.7% |
| Accurate 3100 | <<locked>> | 96% | 37,681 psi | 58% | 2497 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 41,263 psi | 63% | 2510 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 32,663 psi | 50% | 2398 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 46,760 psi | 72% | 2618 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 39,813 psi | 61% | 2474 fps | 98.3% |
| ADI AR 2209 | <<locked>> | 98% | 47,776 psi | 74% | 2694 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,834 psi | 75% | 2621 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 49,835 psi | 77% | 2602 fps | 100% |
| Alliant Power Pro 2000-MR | 51.7 gr | 80% | 42,786 psi | 66% | 2657 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,566 psi | 61% | 2497 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,424 psi | 65% | 2556 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 82% | 32,895 psi | 51% | 2411 fps | 95.8% |
| Alliant Reloder-17 | 50.9 gr | 80% | 34,258 psi | 53% | 2477 fps | 98.1% |
| Alliant Reloder-19 | <<locked>> | 98% | 47,050 psi | 72% | 2687 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 88% | 28,456 psi | 44% | 2320 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 92% | 34,896 psi | 54% | 2549 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,093 psi | 71% | 2625 fps | 99.1% |
| Bofors RP3 | <<locked>> | 80% | 39,537 psi | 61% | 2507 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 42,772 psi | 66% | 2526 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,546 psi | 78% | 2605 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,993 psi | 74% | 2648 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,171 psi | 82% | 2792 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 40,161 psi | 62% | 2507 fps | 97.5% |
| Hodgdon H414 | <<locked>> | 86% | 39,769 psi | 61% | 2552 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 88% | 46,369 psi | 71% | 2631 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 47,224 psi | 73% | 2628 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,369 psi | 44% | 2264 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,410 psi | 67% | 2605 fps | 99.8% |
| Hodgdon Superformance | 59.2 gr | 88% | 42,163 psi | 65% | 2621 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,745 psi | 41% | 1493 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,397 psi | 70% | 2582 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 47,268 psi | 73% | 2615 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,843 psi | 64% | 2507 fps | 98.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,251 psi | 68% | 2530 fps | 96.3% |
| IMR 4350 | <<locked>> | 90% | 42,989 psi | 66% | 2556 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 84% | 41,872 psi | 64% | 2510 fps | 95.5% |
| IMR 4831 | <<locked>> | 82% | 31,575 psi | 49% | 2356 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 43,497 psi | 67% | 2589 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 80% | 48,834 psi | 75% | 2621 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,253 psi | 71% | 2595 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,572 psi | 72% | 2552 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 41,829 psi | 64% | 2510 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 36,680 psi | 56% | 2408 fps | 95.5% |
| Lovex S070 | <<locked>> | 86% | 39,392 psi | 61% | 2487 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 45,963 psi | 71% | 2572 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,151 psi | 71% | 2572 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,814 psi | 64% | 2546 fps | 99.2% |
| Norma 204 | <<locked>> | 94% | 48,805 psi | 75% | 2697 fps | 95.4% |
| Norma MRP | <<locked>> | 98% | 42,960 psi | 66% | 2690 fps | 95.8% |
| Norma URP | <<locked>> | 82% | 32,880 psi | 51% | 2398 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 41,553 psi | 64% | 2562 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 88% | 38,899 psi | 60% | 2543 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 48,733 psi | 75% | 2635 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,588 psi | 75% | 2654 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,634 psi | 81% | 2671 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,093 psi | 42% | 1529 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 54,781 psi | 84% | 2694 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,524 psi | 62% | 2490 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,020 psi | 69% | 2664 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,434 psi | 56% | 2536 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 32,242 psi | 50% | 2411 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 34,534 psi | 53% | 2470 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 49,922 psi | 77% | 2602 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,729 psi | 67% | 2526 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 37,101 psi | 57% | 2451 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 98% | 45,585 psi | 70% | 2667 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 86% | 42,772 psi | 66% | 2526 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 82% | 36,680 psi | 56% | 2408 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,253 psi | 71% | 2595 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,829 psi | 64% | 2510 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 39,392 psi | 61% | 2487 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,985 psi | 58% | 2497 fps | 98.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,355 psi | 73% | 2612 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,266 psi | 70% | 2589 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,137 psi | 73% | 2516 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,363 psi | 61% | 2392 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 40,901 psi | 63% | 2457 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 52,968 psi | 81% | 2697 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,789 psi | 72% | 2520 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,891 psi | 72% | 2605 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 37,898 psi | 58% | 2457 fps | 98.9% |
| Somchem S365 | <<locked>> | 80% | 27,644 psi | 43% | 2300 fps | 97.1% |
| Somchem S385 | <<locked>> | 96% | 43,453 psi | 67% | 2602 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 53,040 psi | 82% | 2569 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,500 psi | 73% | 2507 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,395 psi | 67% | 2500 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,801 psi | 67% | 2510 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,027 psi | 55% | 2392 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 80% | 32,053 psi | 49% | 2346 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 49,197 psi | 76% | 2621 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,279 psi | 65% | 2503 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 33,736 psi | 52% | 2398 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 88% | 30,618 psi | 47% | 2392 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,792 psi | 49% | 2323 fps | 97.4% |
| Winchester 748 | <<locked>> | 80% | 48,994 psi | 75% | 2664 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 39,972 psi | 61% | 2556 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 92% | 28,471 psi | 44% | 2398 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,962 psi | 69% | 2595 fps | 99.8% |
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 102 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 180gr | Swift A-Frame. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,910 fps; across all powders the maximum-charge window runs from 1,667 fps to 2,910 fps. Accurate 3100 gives the best case fill at 100 %, and 102 of the 102 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 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-16 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, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .300 Rem. SA Ultra Mag. with the .308 | 180gr | Swift A-Frame 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.