Load Specifications
Bullet Manufacturer:Frontier Bullets
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:1:12.0
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 165gr | Frontier PH HPBT 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, ReloadSwiss RS 60 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>> | 86% | 56,550 psi | 87% | 2766 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 58,566 psi | 90% | 2841 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 58,566 psi | 90% | 2835 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 56,942 psi | 88% | 2854 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 58,131 psi | 89% | 2835 fps | 97.1% |
| Accurate 4064 | <<locked>> | 94% | 58,363 psi | 90% | 2881 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 54,375 psi | 84% | 2910 fps | 99.4% |
| Accurate LT-30 | <<locked>> | 82% | 58,421 psi | 90% | 2749 fps | 100% |
| ADI AR 2206H | <<locked>> | 88% | 55,506 psi | 85% | 2864 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 94% | 56,666 psi | 87% | 2864 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 88% | 58,073 psi | 89% | 2867 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 55,419 psi | 85% | 2795 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 56,347 psi | 87% | 2923 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 55,071 psi | 85% | 2982 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 56,434 psi | 87% | 2884 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 56,173 psi | 86% | 2769 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 57,043 psi | 88% | 2907 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 52,301 psi | 80% | 2910 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 98% | 57,406 psi | 88% | 3012 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,347 psi | 57% | 2641 fps | 97.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,539 psi | 64% | 2792 fps | 96.9% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 58,088 psi | 89% | 2749 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 55,303 psi | 85% | 2881 fps | 99.5% |
| Bofors RP3 | <<locked>> | 94% | 57,072 psi | 88% | 2900 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 57,203 psi | 88% | 2867 fps | 97.2% |
| Hodgdon Benchmark | <<locked>> | 86% | 56,623 psi | 87% | 2805 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 57,769 psi | 89% | 2900 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 55,912 psi | 86% | 2946 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 82% | 55,274 psi | 85% | 2812 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 56,391 psi | 87% | 2838 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 58,146 psi | 89% | 2913 fps | 99.4% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 57,348 psi | 88% | 2959 fps | 98% |
| Hodgdon H4350 | <<locked>> | 98% | 58,233 psi | 90% | 2923 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 88% | 56,101 psi | 86% | 2877 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,472 psi | 75% | 2789 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 55,361 psi | 85% | 2910 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 54,839 psi | 84% | 2943 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,273 psi | 54% | 1729 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 57,305 psi | 88% | 2877 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 56,086 psi | 86% | 2861 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 56,086 psi | 86% | 2848 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 90% | 56,159 psi | 86% | 2825 fps | 97.6% |
| IMR 4198 | <<locked>> | 82% | 56,130 psi | 86% | 2726 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 53,940 psi | 83% | 2838 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 96% | 55,680 psi | 86% | 2848 fps | 97.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,387 psi | 79% | 2848 fps | 99.2% |
| IMR 4895 | <<locked>> | 92% | 58,479 psi | 90% | 2936 fps | 100% |
| IMR 8208 XBR | <<locked>> | 88% | 58,073 psi | 89% | 2867 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 58,682 psi | 90% | 2854 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 55,172 psi | 85% | 2841 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 58,798 psi | 90% | 2844 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 55,724 psi | 86% | 2844 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 58,421 psi | 90% | 2890 fps | 99% |
| Lovex S070ᴾ | <<locked>> | 100% | 55,651 psi | 86% | 2871 fps | 97.8% |
| Norma 201 | <<locked>> | 90% | 57,928 psi | 89% | 2861 fps | 100% |
| Norma 202 | <<locked>> | 90% | 58,204 psi | 90% | 2858 fps | 100% |
| Norma 203B | <<locked>> | 92% | 56,188 psi | 86% | 2894 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 53,388 psi | 82% | 2897 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 92% | 56,956 psi | 88% | 2923 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 52,301 psi | 80% | 2890 fps | 97.9% |
| Ramshot TAC | <<locked>> | 88% | 58,595 psi | 90% | 2887 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 88% | 58,146 psi | 89% | 2907 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 55,593 psi | 86% | 2818 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,737 psi | 55% | 1772 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 57,638 psi | 89% | 2848 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 58,769 psi | 90% | 2897 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 57,725 psi | 89% | 2979 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 57,058 psi | 88% | 3009 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 53,795 psi | 83% | 2930 fps | 99.2% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 54,070 psi | 83% | 2956 fps | 99% |
| Rottweil R 901 | <<locked>> | 88% | 58,711 psi | 90% | 2841 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 58,102 psi | 89% | 2854 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 56,913 psi | 88% | 2890 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 57,203 psi | 88% | 2867 fps | 97.2% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 58,421 psi | 90% | 2890 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 88% | 55,172 psi | 85% | 2841 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,724 psi | 86% | 2844 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 55,651 psi | 86% | 2871 fps | 97.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 57,290 psi | 88% | 2818 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 58,813 psi | 90% | 2956 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 57,116 psi | 88% | 2792 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 57,246 psi | 88% | 2867 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 57,638 psi | 89% | 2890 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 56,130 psi | 86% | 2756 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 56,159 psi | 86% | 2749 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 55,390 psi | 85% | 2792 fps | 97.4% |
| Somchem S321 | <<locked>> | 84% | 56,086 psi | 86% | 2854 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,332 psi | 85% | 2753 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 56,521 psi | 87% | 2858 fps | 99.9% |
| Somchem S355 | <<locked>> | 96% | 57,246 psi | 88% | 2890 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,950 psi | 74% | 2848 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 55,738 psi | 86% | 2717 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 56,260 psi | 87% | 2736 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 57,754 psi | 89% | 2818 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 55,245 psi | 85% | 2792 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 55,230 psi | 85% | 2822 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 56,231 psi | 87% | 2894 fps | 99.4% |
| Vihtavuori N530 | <<locked>> | 86% | 55,172 psi | 85% | 2818 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 56,985 psi | 88% | 2838 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 55,172 psi | 85% | 2900 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,437 psi | 62% | 2720 fps | 97.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 56,768 psi | 87% | 2874 fps | 100% |
| Winchester 748 | <<locked>> | 88% | 58,755 psi | 90% | 2917 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 57,667 psi | 89% | 2963 fps | 98% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,301 psi | 51% | 2621 fps | 97.1% |
| Winchester StaBALL Match | <<locked>> | 90% | 57,319 psi | 88% | 2897 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% | 47,065 psi | 72% | 2631 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 51,285 psi | 79% | 2740 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,653 psi | 61% | 2552 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,354 psi | 71% | 2700 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 47,906 psi | 74% | 2674 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 37,478 psi | 58% | 2543 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 35,824 psi | 55% | 2572 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 55,143 psi | 85% | 2703 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 43,352 psi | 67% | 2657 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 80% | 36,898 psi | 57% | 2507 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,426 psi | 70% | 2667 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 45,339 psi | 70% | 2657 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 53,098 psi | 82% | 2874 fps | 99.9% |
| Alliant Power Pro 2000-MR | 50.9 gr | 80% | 39,262 psi | 60% | 2677 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,332 psi | 56% | 2530 fps | 98% |
| Alliant Reloder-10x | <<locked>> | 80% | 52,939 psi | 81% | 2726 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,131 psi | 60% | 2592 fps | 97.4% |
| Alliant Reloder-16 | <<locked>> | 88% | 36,274 psi | 56% | 2585 fps | 95.8% |
| Alliant Reloder-17 | 50.1 gr | 80% | 31,343 psi | 48% | 2487 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 94% | 31,125 psi | 48% | 2480 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 38,682 psi | 60% | 2726 fps | 95.8% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 54,476 psi | 84% | 2703 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,380 psi | 65% | 2657 fps | 97.6% |
| Bofors RP3 | <<locked>> | 80% | 35,897 psi | 55% | 2530 fps | 98% |
| Bofors RP7 | <<locked>> | 92% | 47,558 psi | 73% | 2710 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,021 psi | 72% | 2654 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,063 psi | 68% | 2687 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,559 psi | 75% | 2828 fps | 99.2% |
| Hodgdon H322 | <<locked>> | 80% | 51,808 psi | 80% | 2762 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 52,663 psi | 81% | 2785 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,753 psi | 57% | 2530 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 92% | 43,990 psi | 68% | 2733 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 94% | 51,358 psi | 79% | 2812 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 43,758 psi | 67% | 2671 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 31,227 psi | 48% | 2431 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,581 psi | 61% | 2638 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 94% | 47,398 psi | 73% | 2815 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,281 psi | 40% | 1545 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,872 psi | 64% | 2618 fps | 98.8% |
| IMR 3031 | <<locked>> | 80% | 43,047 psi | 66% | 2664 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,725 psi | 60% | 2539 fps | 97.3% |
| IMR 4166 Enduron | <<locked>> | 84% | 46,601 psi | 72% | 2664 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 52,866 psi | 81% | 2684 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 47,572 psi | 73% | 2733 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 90% | 46,470 psi | 71% | 2690 fps | 95.5% |
| IMR 4831 | <<locked>> | 88% | 34,766 psi | 53% | 2530 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 40,074 psi | 62% | 2621 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 80% | 45,426 psi | 70% | 2667 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 80% | 51,155 psi | 79% | 2749 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,235 psi | 65% | 2638 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 43,526 psi | 67% | 2598 fps | 98.8% |
| Lovex S062 | <<locked>> | 80% | 38,595 psi | 59% | 2546 fps | 98.8% |
| Lovex S065 | <<locked>> | 88% | 40,509 psi | 62% | 2585 fps | 95.5% |
| Lovex S070 | <<locked>> | 92% | 43,395 psi | 67% | 2661 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 42,395 psi | 65% | 2608 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 42,685 psi | 66% | 2621 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,508 psi | 59% | 2579 fps | 97.8% |
| Norma URP | <<locked>> | 88% | 36,332 psi | 56% | 2575 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 37,927 psi | 58% | 2589 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 94% | 43,004 psi | 66% | 2720 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 45,252 psi | 70% | 2667 fps | 96.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,585 psi | 69% | 2687 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,965 psi | 75% | 2713 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,585 psi | 41% | 1581 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,807 psi | 78% | 2749 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,525 psi | 65% | 2625 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,756 psi | 63% | 2687 fps | 97.8% |
| ReloadSwiss RS 60 | 50.1 gr | 80% | 33,344 psi | 51% | 2552 fps | 98.8% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 35,578 psi | 55% | 2585 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 38,479 psi | 59% | 2651 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 46,427 psi | 71% | 2657 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,292 psi | 62% | 2559 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 80% | 33,663 psi | 52% | 2470 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 92% | 47,558 psi | 73% | 2710 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 88% | 40,509 psi | 62% | 2585 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,235 psi | 65% | 2638 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 38,595 psi | 59% | 2546 fps | 98.8% |
| Shooters World SW4350 | <<locked>> | 92% | 43,395 psi | 67% | 2661 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 53,722 psi | 83% | 2769 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,650 psi | 53% | 2520 fps | 96.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 53,766 psi | 83% | 2746 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,381 psi | 67% | 2638 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,742 psi | 64% | 2621 fps | 98.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,918 psi | 68% | 2569 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,448 psi | 56% | 2438 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 45,426 psi | 70% | 2631 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 48,965 psi | 75% | 2746 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,366 psi | 67% | 2569 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,178 psi | 66% | 2641 fps | 98.6% |
| Somchem S355 | <<locked>> | 80% | 34,635 psi | 53% | 2480 fps | 97.1% |
| Somchem S365 | <<locked>> | 82% | 26,760 psi | 41% | 2356 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 49,588 psi | 76% | 2631 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,193 psi | 68% | 2566 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,769 psi | 61% | 2552 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,277 psi | 62% | 2552 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,851 psi | 51% | 2418 fps | 97.9% |
| Vihtavuori N160 | <<locked>> | 86% | 35,476 psi | 55% | 2520 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 45,411 psi | 70% | 2664 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 38,885 psi | 60% | 2546 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 88% | 37,376 psi | 58% | 2579 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 94% | 33,272 psi | 51% | 2556 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 31,285 psi | 48% | 2395 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 44,918 psi | 69% | 2707 fps | 99.9% |
| Winchester 760 | <<locked>> | 92% | 44,222 psi | 68% | 2736 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 98% | 31,314 psi | 48% | 2559 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,046 psi | 63% | 2625 fps | 98.8% |
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 106 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 165gr | Frontier PH HPBT. Alliant Reloder-17 delivers the highest muzzle velocity at 3,012 fps; across all powders the maximum-charge window runs from 1,729 fps to 3,012 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 165.0 gr projectile in 0.308" calls for a 1:12.0 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, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .300 Rem. SA Ultra Mag. with the .308 | 165gr | Frontier PH HPBT 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.