Load Specifications
Bullet:.308 | 165gr | Swift A-Frame
Bullet Manufacturer:Swift
Bullet Weight:165 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:1:14.5
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 165gr | Swift A-Frame bullet and 103 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and Alliant Power Pro 2000-MR.
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% | 58,566 psi | 90% | 2802 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 57,101 psi | 88% | 2835 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 57,377 psi | 88% | 2828 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,448 psi | 85% | 2848 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 56,420 psi | 87% | 2828 fps | 97.1% |
| Accurate 4064 | <<locked>> | 92% | 57,217 psi | 88% | 2874 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 57,188 psi | 88% | 2963 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 88% | 57,450 psi | 88% | 2907 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 58,392 psi | 90% | 2904 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,565 psi | 87% | 2858 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 57,653 psi | 89% | 2831 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 58,581 psi | 90% | 2969 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 57,406 psi | 88% | 3031 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 58,581 psi | 90% | 2927 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 57,798 psi | 89% | 2802 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,753 psi | 86% | 2904 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,694 psi | 84% | 2966 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 96% | 55,912 psi | 86% | 3002 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,957 psi | 60% | 2694 fps | 98.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,540 psi | 67% | 2851 fps | 97.8% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 57,566 psi | 89% | 2927 fps | 99.8% |
| Bofors RP3 | <<locked>> | 92% | 55,622 psi | 86% | 2894 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 55,825 psi | 86% | 2861 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 86% | 58,320 psi | 90% | 2841 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 56,115 psi | 86% | 2890 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 58,305 psi | 90% | 2992 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 57,334 psi | 88% | 2851 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 58,407 psi | 90% | 2877 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 56,898 psi | 88% | 2910 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 98% | 56,130 psi | 86% | 2956 fps | 98% |
| Hodgdon H4350 | <<locked>> | 96% | 56,826 psi | 87% | 2917 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 88% | 58,088 psi | 89% | 2917 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,952 psi | 78% | 2841 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 57,798 psi | 89% | 2953 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 57,058 psi | 88% | 2995 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,534 psi | 55% | 1749 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,970 psi | 86% | 2871 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 58,175 psi | 89% | 2897 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 57,928 psi | 89% | 2887 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 90% | 58,059 psi | 89% | 2871 fps | 98.1% |
| IMR 4198 | <<locked>> | 82% | 57,827 psi | 89% | 2759 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 55,883 psi | 86% | 2887 fps | 97.4% |
| IMR 4451 Enduron | <<locked>> | 96% | 57,798 psi | 89% | 2897 fps | 98% |
| IMR 4831ᴾ | <<locked>> | 100% | 53,882 psi | 83% | 2897 fps | 99.5% |
| IMR 4895 | <<locked>> | 90% | 57,174 psi | 88% | 2933 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 56,565 psi | 87% | 2858 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 56,826 psi | 87% | 2841 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 57,508 psi | 88% | 2884 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 57,174 psi | 88% | 2838 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 57,928 psi | 89% | 2887 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 56,971 psi | 88% | 2887 fps | 99% |
| Lovex S070ᴾ | <<locked>> | 100% | 58,015 psi | 89% | 2920 fps | 98.3% |
| Norma 201 | <<locked>> | 88% | 56,115 psi | 86% | 2851 fps | 100% |
| Norma 202 | <<locked>> | 88% | 56,681 psi | 87% | 2851 fps | 100% |
| Norma 203B | <<locked>> | 92% | 58,378 psi | 90% | 2936 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 56,869 psi | 87% | 2940 fps | 96.2% |
| Norma URPᴾ | <<locked>> | 100% | 55,883 psi | 86% | 2946 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 90% | 55,405 psi | 85% | 2913 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 54,752 psi | 84% | 2943 fps | 98.5% |
| Ramshot TAC | <<locked>> | 86% | 57,000 psi | 88% | 2881 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 86% | 56,420 psi | 87% | 2894 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 57,624 psi | 89% | 2861 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,984 psi | 55% | 1791 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 55,912 psi | 86% | 2838 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 57,029 psi | 88% | 2887 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 56,144 psi | 86% | 2966 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 55,637 psi | 86% | 3002 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 56,579 psi | 87% | 2982 fps | 99.6% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 56,391 psi | 87% | 3012 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 86% | 57,145 psi | 88% | 2831 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 56,826 psi | 87% | 2851 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 55,448 psi | 85% | 2884 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 55,825 psi | 86% | 2861 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 98% | 56,971 psi | 88% | 2887 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 88% | 57,508 psi | 88% | 2884 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 57,928 psi | 89% | 2887 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 58,015 psi | 89% | 2920 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 57,508 psi | 88% | 2949 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,419 psi | 85% | 2858 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 55,941 psi | 86% | 2881 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 57,943 psi | 89% | 2792 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 58,088 psi | 89% | 2785 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 57,682 psi | 89% | 2841 fps | 98% |
| Somchem S321 | <<locked>> | 84% | 57,943 psi | 89% | 2890 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 57,014 psi | 88% | 2785 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 58,784 psi | 90% | 2900 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 55,898 psi | 86% | 2884 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,154 psi | 77% | 2894 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 57,406 psi | 88% | 2749 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 58,117 psi | 89% | 2772 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,333 psi | 87% | 2812 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 57,464 psi | 88% | 2831 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 57,276 psi | 88% | 2861 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 58,697 psi | 90% | 2943 fps | 99.7% |
| Vihtavuori N530 | <<locked>> | 86% | 57,203 psi | 88% | 2861 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 55,535 psi | 85% | 2828 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 57,522 psi | 88% | 2946 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,801 psi | 66% | 2772 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 55,448 psi | 85% | 2871 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 57,174 psi | 88% | 2907 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 56,434 psi | 87% | 2963 fps | 98.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,940 psi | 54% | 2687 fps | 98.3% |
| Winchester StaBALL Match | <<locked>> | 88% | 55,883 psi | 86% | 2887 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% | 48,573 psi | 75% | 2664 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 53,403 psi | 82% | 2782 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,350 psi | 64% | 2592 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,428 psi | 75% | 2743 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 49,472 psi | 76% | 2717 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 39,117 psi | 60% | 2585 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 35,157 psi | 54% | 2562 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 44,860 psi | 69% | 2700 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 80% | 38,043 psi | 59% | 2546 fps | 97.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,905 psi | 72% | 2707 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 47,311 psi | 73% | 2694 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 54,969 psi | 85% | 2913 fps | 100% |
| Alliant Power Pro 2000-MR | 52.8 gr | 80% | 40,683 psi | 63% | 2726 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,797 psi | 58% | 2569 fps | 98.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 54,563 psi | 84% | 2759 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,553 psi | 62% | 2631 fps | 97.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 35,360 psi | 54% | 2575 fps | 95.7% |
| Alliant Reloder-17 | 52 gr | 80% | 32,576 psi | 50% | 2533 fps | 96.5% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,560 psi | 47% | 2477 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 96% | 37,956 psi | 58% | 2723 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,903 psi | 68% | 2700 fps | 98.2% |
| Bofors RP3 | <<locked>> | 80% | 37,376 psi | 58% | 2572 fps | 98.5% |
| Bofors RP7 | <<locked>> | 90% | 46,209 psi | 71% | 2700 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,515 psi | 75% | 2694 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,687 psi | 70% | 2726 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,372 psi | 77% | 2871 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 80% | 53,534 psi | 82% | 2799 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 54,708 psi | 84% | 2825 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 38,305 psi | 59% | 2575 fps | 96.1% |
| Hodgdon H414 | <<locked>> | 90% | 43,047 psi | 66% | 2726 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 92% | 50,009 psi | 77% | 2805 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 45,266 psi | 70% | 2710 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 30,545 psi | 47% | 2421 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,234 psi | 63% | 2680 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 92% | 46,050 psi | 71% | 2805 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,411 psi | 41% | 1562 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,352 psi | 67% | 2661 fps | 99.2% |
| IMR 3031 | <<locked>> | 80% | 44,889 psi | 69% | 2703 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,958 psi | 61% | 2579 fps | 97.9% |
| IMR 4166 Enduron | <<locked>> | 82% | 45,223 psi | 70% | 2654 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 54,592 psi | 84% | 2717 fps | 100% |
| IMR 4350 | <<locked>> | 94% | 46,369 psi | 71% | 2726 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 88% | 45,266 psi | 70% | 2684 fps | 95.4% |
| IMR 4831 | <<locked>> | 86% | 33,982 psi | 52% | 2520 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 41,553 psi | 64% | 2664 fps | 98.6% |
| IMR 8208 XBR | <<locked>> | 80% | 46,905 psi | 72% | 2707 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 53,156 psi | 82% | 2792 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 43,990 psi | 68% | 2677 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,715 psi | 69% | 2631 fps | 99.1% |
| Lovex S062 | <<locked>> | 80% | 39,885 psi | 61% | 2582 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 39,436 psi | 61% | 2575 fps | 95.4% |
| Lovex S070 | <<locked>> | 90% | 42,569 psi | 65% | 2657 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 43,888 psi | 68% | 2651 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 44,266 psi | 68% | 2661 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,929 psi | 61% | 2621 fps | 98.3% |
| Norma 204 | <<locked>> | 98% | 53,069 psi | 82% | 2877 fps | 95.4% |
| Norma URP | <<locked>> | 86% | 35,433 psi | 55% | 2566 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 39,407 psi | 61% | 2631 fps | 98% |
| Ramshot Hunter | <<locked>> | 92% | 42,177 psi | 65% | 2717 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 46,876 psi | 72% | 2713 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,383 psi | 71% | 2733 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,473 psi | 78% | 2753 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,701 psi | 41% | 1598 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,359 psi | 81% | 2785 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,336 psi | 64% | 2615 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,641 psi | 66% | 2736 fps | 98.4% |
| ReloadSwiss RS 60 | 52 gr | 80% | 34,650 psi | 53% | 2602 fps | 99.3% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 34,824 psi | 54% | 2575 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 37,521 psi | 58% | 2644 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 47,892 psi | 74% | 2690 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,800 psi | 64% | 2602 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 35,099 psi | 54% | 2516 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 90% | 46,209 psi | 71% | 2700 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 86% | 39,436 psi | 61% | 2575 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,990 psi | 68% | 2677 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,885 psi | 61% | 2582 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 90% | 42,569 psi | 65% | 2657 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,114 psi | 56% | 2566 fps | 97.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,121 psi | 69% | 2687 fps | 97.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,308 psi | 67% | 2667 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,295 psi | 70% | 2605 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,681 psi | 58% | 2470 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 44,367 psi | 68% | 2628 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 50,589 psi | 78% | 2782 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,860 psi | 69% | 2605 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,715 psi | 69% | 2680 fps | 99% |
| Somchem S355 | <<locked>> | 80% | 36,013 psi | 55% | 2523 fps | 97.7% |
| Somchem S365 | <<locked>> | 80% | 26,150 psi | 40% | 2346 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 51,053 psi | 79% | 2664 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,600 psi | 70% | 2598 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,307 psi | 64% | 2585 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,771 psi | 64% | 2592 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,171 psi | 53% | 2457 fps | 98.4% |
| Vihtavuori N160 | <<locked>> | 84% | 34,809 psi | 54% | 2516 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 46,920 psi | 72% | 2703 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 40,422 psi | 62% | 2585 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 36,579 psi | 56% | 2572 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 92% | 32,822 psi | 50% | 2552 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,298 psi | 47% | 2379 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 46,673 psi | 72% | 2749 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 43,265 psi | 67% | 2733 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,647 psi | 47% | 2552 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,830 psi | 66% | 2671 fps | 99.2% |
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 | 165gr | Swift A-Frame. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,031 fps; across all powders the maximum-charge window runs from 1,749 fps to 3,031 fps. Accurate 4350 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 54–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.308" calls for a 1:14.5 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. ReloadSwiss RS 60, Alliant Reloder-17, Alliant Power Pro 2000-MR rank at the top here: for .300 Rem. SA Ultra Mag. with the .308 | 165gr | 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.