Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:166 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:1:10.5
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 166gr | Peregrine Glider (Glider Tactical) bullet and 107 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 ReloadSwiss RS 52.
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>> | 88% | 57,130 psi | 88% | 2759 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 55,811 psi | 86% | 2792 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 58,566 psi | 90% | 2822 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 57,769 psi | 89% | 2851 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 55,593 psi | 86% | 2782 fps | 96.5% |
| Accurate 4064 | <<locked>> | 96% | 58,566 psi | 90% | 2871 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,923 psi | 78% | 2844 fps | 98.9% |
| Accurate LT-30 | <<locked>> | 82% | 56,420 psi | 87% | 2707 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 56,840 psi | 87% | 2733 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 56,434 psi | 87% | 2864 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 96% | 57,377 psi | 88% | 2858 fps | 99.7% |
| ADI AR 2219 | <<locked>> | 82% | 57,725 psi | 89% | 2831 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 55,477 psi | 85% | 2815 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 56,028 psi | 86% | 2792 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 57,334 psi | 88% | 2920 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 56,144 psi | 86% | 2979 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 57,174 psi | 88% | 2881 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 57,000 psi | 88% | 2766 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 57,812 psi | 89% | 2904 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,864 psi | 77% | 2851 fps | 99.1% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 58,131 psi | 89% | 3005 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,940 psi | 54% | 2572 fps | 96.9% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 55,811 psi | 86% | 2703 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 56,550 psi | 87% | 2881 fps | 99.6% |
| Bofors RP3 | <<locked>> | 96% | 57,740 psi | 89% | 2897 fps | 100% |
| Bofors RP7ᴾ | <<locked>> | 100% | 58,030 psi | 89% | 2861 fps | 97.2% |
| Hodgdon Benchmark | <<locked>> | 88% | 57,682 psi | 89% | 2802 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 58,552 psi | 90% | 2897 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 56,971 psi | 88% | 2946 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 84% | 56,449 psi | 87% | 2812 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 57,682 psi | 89% | 2841 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 55,317 psi | 85% | 2858 fps | 99.1% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 54,447 psi | 84% | 2900 fps | 97.3% |
| Hodgdon H4350 | <<locked>> | 98% | 55,463 psi | 85% | 2861 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 90% | 57,000 psi | 88% | 2874 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,861 psi | 71% | 2730 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 56,159 psi | 86% | 2904 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 55,956 psi | 86% | 2940 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,998 psi | 54% | 1709 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 58,566 psi | 90% | 2877 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 56,536 psi | 87% | 2854 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 56,927 psi | 88% | 2844 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 92% | 57,493 psi | 88% | 2825 fps | 97.6% |
| IMR 4198 | <<locked>> | 84% | 57,203 psi | 88% | 2723 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 51,300 psi | 79% | 2782 fps | 95.9% |
| IMR 4451 Enduron | <<locked>> | 98% | 56,565 psi | 87% | 2841 fps | 97.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,327 psi | 74% | 2785 fps | 98.6% |
| IMR 4895 | <<locked>> | 92% | 55,796 psi | 86% | 2884 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 88% | 55,477 psi | 85% | 2815 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 55,738 psi | 86% | 2802 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 55,883 psi | 86% | 2838 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 56,362 psi | 87% | 2792 fps | 99.9% |
| Lovex S062 | <<locked>> | 94% | 56,260 psi | 87% | 2835 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 55,405 psi | 85% | 2831 fps | 98.5% |
| Lovex S070ᴾ | <<locked>> | 100% | 52,663 psi | 81% | 2808 fps | 97.1% |
| Norma 201 | <<locked>> | 92% | 58,494 psi | 90% | 2854 fps | 100% |
| Norma 202 | <<locked>> | 90% | 55,724 psi | 86% | 2812 fps | 100% |
| Norma 203B | <<locked>> | 94% | 56,927 psi | 88% | 2890 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 50,285 psi | 77% | 2835 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 94% | 58,015 psi | 89% | 2920 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,661 psi | 76% | 2831 fps | 97.2% |
| Ramshot TAC | <<locked>> | 88% | 56,086 psi | 86% | 2835 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 88% | 55,405 psi | 85% | 2851 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 86% | 56,695 psi | 87% | 2818 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,157 psi | 54% | 1745 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 55,245 psi | 85% | 2799 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 55,840 psi | 86% | 2838 fps | 98% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 58,537 psi | 90% | 2976 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 57,972 psi | 89% | 3005 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,502 psi | 78% | 2864 fps | 98.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 51,082 psi | 79% | 2890 fps | 98.4% |
| Rottweil R 901 | <<locked>> | 88% | 55,767 psi | 86% | 2789 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 55,245 psi | 85% | 2802 fps | 100% |
| Rottweil R 903 | <<locked>> | 98% | 57,290 psi | 88% | 2884 fps | 100% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 58,030 psi | 89% | 2861 fps | 97.2% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 55,405 psi | 85% | 2831 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 90% | 55,883 psi | 86% | 2838 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 56,260 psi | 87% | 2835 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 52,663 psi | 81% | 2808 fps | 97.1% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 58,813 psi | 90% | 2822 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 57,972 psi | 89% | 2841 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 55,840 psi | 86% | 2897 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 58,189 psi | 90% | 2792 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 58,175 psi | 89% | 2864 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 58,581 psi | 90% | 2887 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 57,116 psi | 88% | 2753 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 57,159 psi | 88% | 2749 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 56,275 psi | 87% | 2789 fps | 97.4% |
| Somchem S321 | <<locked>> | 86% | 57,072 psi | 88% | 2851 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 56,144 psi | 86% | 2746 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 57,798 psi | 89% | 2858 fps | 99.9% |
| Somchem S355 | <<locked>> | 98% | 57,740 psi | 89% | 2884 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,020 psi | 69% | 2785 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 86% | 56,811 psi | 87% | 2717 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 57,246 psi | 88% | 2736 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 58,610 psi | 90% | 2815 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 56,231 psi | 87% | 2792 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 55,869 psi | 86% | 2815 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 53,243 psi | 82% | 2838 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 88% | 56,246 psi | 87% | 2818 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 57,885 psi | 89% | 2835 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 51,982 psi | 80% | 2838 fps | 98.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,405 psi | 58% | 2648 fps | 96.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 54,143 psi | 83% | 2822 fps | 100% |
| Winchester 748 | <<locked>> | 88% | 55,796 psi | 86% | 2864 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 54,447 psi | 84% | 2900 fps | 97.3% |
| Winchester StaBALL Match | <<locked>> | 92% | 58,305 psi | 90% | 2894 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% | 44,483 psi | 68% | 2582 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 48,515 psi | 75% | 2687 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,608 psi | 56% | 2490 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,656 psi | 67% | 2641 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 52,025 psi | 80% | 2726 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 34,664 psi | 53% | 2477 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 35,578 psi | 55% | 2556 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 53,069 psi | 82% | 2661 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 53,476 psi | 82% | 2687 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 40,944 psi | 63% | 2598 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 80% | 34,940 psi | 54% | 2451 fps | 95.7% |
| ADI AR 2219 | <<locked>> | 80% | 53,925 psi | 83% | 2779 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,047 psi | 66% | 2612 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 42,743 psi | 66% | 2605 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 50,212 psi | 77% | 2812 fps | 99.8% |
| Alliant Power Pro 2000-MR | 49.2 gr | 80% | 36,970 psi | 57% | 2612 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,156 psi | 53% | 2467 fps | 97.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 50,328 psi | 77% | 2674 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,709 psi | 56% | 2530 fps | 96.6% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,332 psi | 56% | 2572 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 82% | 31,415 psi | 48% | 2477 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 96% | 30,966 psi | 48% | 2464 fps | 95% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 52,199 psi | 80% | 2657 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,016 psi | 62% | 2595 fps | 96.9% |
| Bofors RP3 | <<locked>> | 80% | 33,315 psi | 51% | 2464 fps | 97.2% |
| Bofors RP7 | <<locked>> | 94% | 47,993 psi | 74% | 2700 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,991 psi | 69% | 2605 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,408 psi | 64% | 2628 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,847 psi | 71% | 2769 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 80% | 49,472 psi | 76% | 2713 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 50,256 psi | 77% | 2736 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 36,883 psi | 57% | 2523 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 94% | 44,396 psi | 68% | 2726 fps | 95% |
| Hodgdon H4350 | <<locked>> | 96% | 52,214 psi | 80% | 2812 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 41,263 psi | 63% | 2612 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 31,125 psi | 48% | 2415 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,275 psi | 57% | 2575 fps | 98.2% |
| Hodgdon Superformance | <<locked>> | 96% | 48,196 psi | 74% | 2812 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,947 psi | 40% | 1526 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,856 psi | 61% | 2566 fps | 98.3% |
| IMR 3031 | <<locked>> | 80% | 40,756 psi | 63% | 2615 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,651 psi | 56% | 2484 fps | 96.6% |
| IMR 4166 Enduron | <<locked>> | 86% | 47,543 psi | 73% | 2664 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 50,734 psi | 78% | 2638 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 48,008 psi | 74% | 2726 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 92% | 47,036 psi | 72% | 2687 fps | 95.4% |
| IMR 4831 | <<locked>> | 90% | 34,664 psi | 53% | 2516 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 37,579 psi | 58% | 2559 fps | 97.4% |
| IMR 8208 XBR | <<locked>> | 80% | 43,047 psi | 66% | 2612 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 80% | 48,443 psi | 75% | 2697 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 39,508 psi | 61% | 2575 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 41,553 psi | 64% | 2546 fps | 98.3% |
| Lovex S062 | <<locked>> | 80% | 36,318 psi | 56% | 2487 fps | 98.3% |
| Lovex S065 | <<locked>> | 90% | 40,698 psi | 63% | 2575 fps | 95.4% |
| Lovex S070 | <<locked>> | 96% | 46,601 psi | 72% | 2710 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 39,987 psi | 62% | 2552 fps | 99% |
| Norma 202 | <<locked>> | 80% | 40,408 psi | 62% | 2569 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,085 psi | 56% | 2516 fps | 97% |
| Norma URP | <<locked>> | 90% | 36,187 psi | 56% | 2562 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 35,549 psi | 55% | 2526 fps | 96.5% |
| Ramshot Hunter | <<locked>> | 96% | 43,468 psi | 67% | 2717 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 42,946 psi | 66% | 2612 fps | 96.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,322 psi | 65% | 2631 fps | 98.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,528 psi | 72% | 2661 fps | 99% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,179 psi | 40% | 1562 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,385 psi | 74% | 2697 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 42,917 psi | 66% | 2618 fps | 95.2% |
| ReloadSwiss RS 52 | 47.7 gr | 80% | 38,203 psi | 59% | 2625 fps | 97% |
| ReloadSwiss RS 60 | 48.5 gr | 80% | 31,372 psi | 48% | 2490 fps | 98% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 38,218 psi | 59% | 2635 fps | 95.9% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 38,812 psi | 60% | 2644 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 43,714 psi | 67% | 2598 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,116 psi | 59% | 2507 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 80% | 31,299 psi | 48% | 2408 fps | 96.1% |
| Rottweil R 907 | <<locked>> | 94% | 47,993 psi | 74% | 2700 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 90% | 40,698 psi | 63% | 2575 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,508 psi | 61% | 2575 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 36,318 psi | 56% | 2487 fps | 98.3% |
| Shooters World SW4350 | <<locked>> | 96% | 46,601 psi | 72% | 2710 fps | 95.8% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 51,111 psi | 79% | 2717 fps | 99.9% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 54,331 psi | 84% | 2792 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,532 psi | 50% | 2457 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 51,271 psi | 79% | 2700 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,017 psi | 63% | 2582 fps | 96.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,479 psi | 61% | 2566 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,655 psi | 64% | 2516 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,374 psi | 53% | 2385 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 45,876 psi | 71% | 2628 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 46,325 psi | 71% | 2690 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 41,133 psi | 63% | 2520 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,727 psi | 63% | 2582 fps | 98% |
| Somchem S355 | <<locked>> | 80% | 32,387 psi | 50% | 2418 fps | 96.2% |
| Somchem S365 | <<locked>> | 86% | 28,268 psi | 43% | 2395 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 47,253 psi | 73% | 2585 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,959 psi | 65% | 2516 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,275 psi | 57% | 2497 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,101 psi | 59% | 2503 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 30,748 psi | 47% | 2359 fps | 97.1% |
| Vihtavuori N160 | <<locked>> | 88% | 35,549 psi | 55% | 2510 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 43,004 psi | 66% | 2605 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 80% | 36,593 psi | 56% | 2487 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 37,260 psi | 57% | 2566 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 96% | 32,924 psi | 51% | 2539 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,401 psi | 48% | 2385 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 42,438 psi | 65% | 2651 fps | 99.7% |
| Winchester 760 | <<locked>> | 94% | 44,614 psi | 69% | 2730 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,754 psi | 60% | 2569 fps | 98.2% |
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 107 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 166gr | Peregrine Glider (Glider Tactical). Alliant Reloder-17 delivers the highest muzzle velocity at 3,005 fps; across all powders the maximum-charge window runs from 1,709 fps to 3,005 fps. Accurate 4350 gives the best case fill at 100 %, and 107 of the 107 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 166.0 gr projectile in 0.308" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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, ReloadSwiss RS 52 rank at the top here: for .300 Rem. SA Ultra Mag. with the .308 | 166gr | Peregrine Glider (Glider Tactical) 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.