Load Specifications
Bullet Manufacturer:Barnes
Bullet Weight:190 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:1:16.0
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 190gr | Barnes Barnes Original FN FB bullet and 109 powders. The key underlying parameters are shown in the table above.
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>> | 82% | 57,406 psi | 88% | 2595 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 57,043 psi | 88% | 2631 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 58,581 psi | 90% | 2697 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 55,201 psi | 85% | 2648 fps | 98.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,659 psi | 73% | 2625 fps | 98.7% |
| Accurate 4064 | <<locked>> | 88% | 57,130 psi | 88% | 2680 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 57,508 psi | 88% | 2782 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 51,866 psi | 80% | 2805 fps | 96.5% |
| ADI AR 2206H | <<locked>> | 84% | 56,652 psi | 87% | 2710 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 57,711 psi | 89% | 2713 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 55,114 psi | 85% | 2766 fps | 97.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,579 psi | 86% | 2661 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 57,130 psi | 88% | 2625 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 56,927 psi | 88% | 2835 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 54,810 psi | 84% | 2762 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 58,392 psi | 90% | 2736 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 58,639 psi | 90% | 2756 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 58,276 psi | 90% | 2835 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 55,869 psi | 86% | 2812 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 53,983 psi | 83% | 2756 fps | 97.7% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 47,630 psi | 73% | 2697 fps | 96.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,049 psi | 69% | 2648 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,479 psi | 61% | 2562 fps | 97.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,937 psi | 78% | 2822 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 56,594 psi | 87% | 2730 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 55,463 psi | 85% | 2703 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 47,630 psi | 73% | 2697 fps | 96.6% |
| Bofors RP7 | <<locked>> | 94% | 58,697 psi | 90% | 2736 fps | 99% |
| Hodgdon Benchmark | <<locked>> | 82% | 56,913 psi | 88% | 2638 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,201 psi | 85% | 2690 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,101 psi | 86% | 2720 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 94% | 56,246 psi | 87% | 2782 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 92% | 56,362 psi | 87% | 2740 fps | 98.3% |
| Hodgdon H4895 | <<locked>> | 84% | 57,246 psi | 88% | 2717 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 58,508 psi | 90% | 2756 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 57,377 psi | 88% | 2756 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 56,695 psi | 87% | 2822 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,143 psi | 56% | 1644 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 58,436 psi | 90% | 2720 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 58,030 psi | 89% | 2694 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 57,261 psi | 88% | 2697 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 56,811 psi | 87% | 2684 fps | 99.2% |
| IMR 4350 | <<locked>> | 96% | 55,738 psi | 86% | 2713 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 92% | 56,797 psi | 87% | 2710 fps | 99.1% |
| IMR 4831 | <<locked>> | 98% | 57,899 psi | 89% | 2772 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 56,666 psi | 87% | 2736 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 54,781 psi | 84% | 2700 fps | 96% |
| IMR 8208 XBR | <<locked>> | 82% | 55,579 psi | 86% | 2661 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 56,913 psi | 88% | 2684 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 55,796 psi | 86% | 2638 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 57,232 psi | 88% | 2690 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 56,666 psi | 87% | 2707 fps | 99.8% |
| Lovex S070 | <<locked>> | 96% | 57,885 psi | 89% | 2746 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 39,610 psi | 61% | 2484 fps | 97.1% |
| Norma 201 | <<locked>> | 84% | 55,506 psi | 85% | 2657 fps | 100% |
| Norma 202 | <<locked>> | 84% | 56,188 psi | 86% | 2654 fps | 100% |
| Norma 203B | <<locked>> | 88% | 57,870 psi | 89% | 2743 fps | 100% |
| Norma 204 | <<locked>> | 96% | 56,521 psi | 87% | 2766 fps | 97.9% |
| Norma MRPᴾ | <<locked>> | 100% | 50,241 psi | 77% | 2776 fps | 98.5% |
| Norma URP | <<locked>> | 96% | 56,304 psi | 87% | 2769 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 58,813 psi | 90% | 2772 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 58,726 psi | 90% | 2822 fps | 99.8% |
| Ramshot TAC | <<locked>> | 82% | 55,579 psi | 86% | 2687 fps | 99.8% |
| Ramshot Wild Boar | <<locked>> | 82% | 55,564 psi | 85% | 2700 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,738 psi | 57% | 1683 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 56,086 psi | 86% | 2703 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 55,869 psi | 86% | 2772 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 55,521 psi | 85% | 2805 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 57,276 psi | 88% | 2805 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 55,985 psi | 86% | 2831 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 56,362 psi | 87% | 2631 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 55,956 psi | 86% | 2654 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 55,608 psi | 86% | 2700 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 56,797 psi | 87% | 2736 fps | 97% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 53,243 psi | 82% | 2740 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 94% | 58,697 psi | 90% | 2736 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 94% | 56,666 psi | 87% | 2707 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 84% | 56,913 psi | 88% | 2684 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 57,232 psi | 88% | 2690 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 57,885 psi | 89% | 2746 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 57,116 psi | 88% | 2756 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 57,957 psi | 89% | 2717 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 58,624 psi | 90% | 2733 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 56,666 psi | 87% | 2589 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 57,101 psi | 88% | 2589 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 56,652 psi | 87% | 2664 fps | 99.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 52,750 psi | 81% | 2736 fps | 97.7% |
| Somchem S335 | <<locked>> | 84% | 56,173 psi | 86% | 2589 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 57,609 psi | 89% | 2703 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 55,738 psi | 86% | 2697 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 55,274 psi | 85% | 2684 fps | 95.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 58,711 psi | 90% | 2815 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 53,882 psi | 83% | 2720 fps | 98.5% |
| Vihtavuori N133 | <<locked>> | 84% | 57,058 psi | 88% | 2572 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 56,333 psi | 87% | 2618 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 56,681 psi | 87% | 2631 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 56,985 psi | 88% | 2671 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 58,595 psi | 90% | 2759 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 46,369 psi | 71% | 2589 fps | 96.7% |
| Vihtavuori N530 | <<locked>> | 82% | 55,883 psi | 86% | 2657 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 58,233 psi | 90% | 2677 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 57,522 psi | 88% | 2766 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,154 psi | 77% | 2720 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 58,566 psi | 90% | 2736 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 56,478 psi | 87% | 2707 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 56,550 psi | 87% | 2785 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,466 psi | 62% | 2687 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,216 psi | 85% | 2694 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 50,618 psi | 78% | 2661 fps | 96.9% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 53,983 psi | 83% | 2552 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 47,007 psi | 72% | 2497 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 54,520 psi | 84% | 2644 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,455 psi | 70% | 2493 fps | 96.6% |
| Accurate 3100 | <<locked>> | 90% | 34,040 psi | 52% | 2365 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 44,483 psi | 68% | 2500 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,301 psi | 51% | 2359 fps | 96.9% |
| Accurate High Country | <<locked>> | 98% | 48,385 psi | 74% | 2746 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 50,009 psi | 77% | 2612 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 42,656 psi | 66% | 2477 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 94% | 45,542 psi | 70% | 2608 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,083 psi | 80% | 2612 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 53,548 psi | 82% | 2582 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,209 psi | 71% | 2667 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 45,368 psi | 70% | 2605 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,656 psi | 66% | 2497 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,614 psi | 70% | 2559 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,112 psi | 51% | 2369 fps | 97% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,173 psi | 57% | 2490 fps | 99.4% |
| Alliant Reloder-19 | <<locked>> | 94% | 44,788 psi | 69% | 2598 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 44,556 psi | 69% | 2641 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 82% | 25,759 psi | 40% | 2192 fps | 95.1% |
| Alliant Reloder-25 | <<locked>> | 96% | 34,867 psi | 54% | 2451 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 86% | 31,096 psi | 48% | 2402 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,501 psi | 76% | 2625 fps | 99.8% |
| Bofors RP3 | <<locked>> | 80% | 42,772 psi | 66% | 2510 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 44,556 psi | 69% | 2641 fps | 95.8% |
| Bofors RP7 | <<locked>> | 82% | 40,422 psi | 62% | 2431 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,679 psi | 83% | 2595 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,692 psi | 80% | 2641 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,236 psi | 67% | 2513 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 82% | 37,855 psi | 58% | 2457 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 84% | 43,830 psi | 67% | 2533 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 50,575 psi | 78% | 2621 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,632 psi | 47% | 2277 fps | 97.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,065 psi | 72% | 2608 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 39,581 psi | 61% | 2523 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,035 psi | 42% | 1467 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,515 psi | 75% | 2575 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 50,850 psi | 78% | 2602 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,860 psi | 69% | 2507 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,036 psi | 72% | 2530 fps | 97.7% |
| IMR 4350 | <<locked>> | 86% | 40,901 psi | 63% | 2464 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,363 psi | 61% | 2411 fps | 95.7% |
| IMR 4831 | <<locked>> | 80% | 32,285 psi | 50% | 2320 fps | 96.6% |
| IMR 4895 | <<locked>> | 80% | 46,789 psi | 72% | 2589 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 51,329 psi | 79% | 2648 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 52,083 psi | 80% | 2612 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 49,792 psi | 77% | 2589 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,530 psi | 76% | 2546 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 44,947 psi | 69% | 2507 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 36,898 psi | 57% | 2365 fps | 96.5% |
| Lovex S070 | <<locked>> | 82% | 37,434 psi | 58% | 2395 fps | 95.5% |
| Lovex S071 | <<locked>> | 96% | 34,983 psi | 54% | 2388 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 48,936 psi | 75% | 2559 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,516 psi | 76% | 2562 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,991 psi | 69% | 2546 fps | 99.9% |
| Norma 204 | <<locked>> | 90% | 46,122 psi | 71% | 2602 fps | 95.8% |
| Norma MRP | <<locked>> | 92% | 38,392 psi | 59% | 2546 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 33,489 psi | 52% | 2362 fps | 96.8% |
| Ramshot Big Game | <<locked>> | 80% | 44,976 psi | 69% | 2569 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 34,650 psi | 53% | 2395 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 51,967 psi | 80% | 2631 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,837 psi | 80% | 2648 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,412 psi | 42% | 1503 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,337 psi | 67% | 2497 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,979 psi | 75% | 2671 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,537 psi | 61% | 2546 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 32,924 psi | 51% | 2372 fps | 96.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 32,605 psi | 50% | 2375 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 53,098 psi | 82% | 2585 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,630 psi | 72% | 2516 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,248 psi | 62% | 2457 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 96% | 50,198 psi | 77% | 2635 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 94% | 43,526 psi | 67% | 2579 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 82% | 40,422 psi | 62% | 2431 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,898 psi | 57% | 2365 fps | 96.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,792 psi | 77% | 2589 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,947 psi | 69% | 2507 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 37,434 psi | 58% | 2395 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,234 psi | 63% | 2507 fps | 99.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,836 psi | 78% | 2615 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,617 psi | 75% | 2589 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,053 psi | 77% | 2503 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,032 psi | 65% | 2382 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 38,595 psi | 59% | 2365 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 43,105 psi | 66% | 2572 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 49,661 psi | 76% | 2503 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,357 psi | 77% | 2602 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 40,683 psi | 63% | 2454 fps | 99.7% |
| Somchem S361 | <<locked>> | 96% | 51,517 psi | 79% | 2628 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 29,979 psi | 46% | 2316 fps | 98.8% |
| Somchem S385 | <<locked>> | 90% | 38,928 psi | 60% | 2461 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 50,502 psi | 78% | 2490 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,644 psi | 72% | 2487 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,992 psi | 72% | 2500 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,885 psi | 60% | 2395 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 34,795 psi | 54% | 2359 fps | 97.1% |
| Vihtavuori N165 | <<locked>> | 96% | 40,683 psi | 63% | 2484 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 52,533 psi | 81% | 2612 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,252 psi | 70% | 2493 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,301 psi | 53% | 2362 fps | 96.8% |
| Vihtavuori N555 | <<locked>> | 82% | 27,818 psi | 43% | 2264 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,200 psi | 53% | 2336 fps | 98.9% |
| Winchester 748 | <<locked>> | 80% | 52,837 psi | 81% | 2657 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 38,072 psi | 59% | 2461 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 86% | 25,628 psi | 39% | 2260 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,196 psi | 74% | 2592 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 43,990 psi | 68% | 2549 fps | 95.3% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 109 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 190gr | Barnes Barnes Original FN FB. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,835 fps; across all powders the maximum-charge window runs from 1,644 fps to 2,835 fps. Accurate 3100 gives the best case fill at 100 %, and 109 of the 109 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 190.0 gr projectile in 0.308" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, ADI AR 2209 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.