Load Specifications
Bullet Manufacturer:Berger
Bullet Weight:185 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 | 185gr | Berger OTM Jaggenaut Tactical bullet and 103 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>> | 84% | 57,072 psi | 88% | 2608 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,101 psi | 86% | 2638 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 57,566 psi | 89% | 2700 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 58,537 psi | 90% | 2697 fps | 98.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 42,685 psi | 66% | 2552 fps | 97.1% |
| Accurate 4064 | <<locked>> | 90% | 55,883 psi | 86% | 2684 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 55,898 psi | 86% | 2776 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 86% | 56,072 psi | 86% | 2717 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 57,232 psi | 88% | 2717 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 50,473 psi | 78% | 2697 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 86% | 58,508 psi | 90% | 2713 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,130 psi | 86% | 2635 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 55,941 psi | 86% | 2835 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 50,125 psi | 77% | 2697 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,348 psi | 88% | 2740 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 57,957 psi | 89% | 2762 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 56,753 psi | 87% | 2825 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 96% | 58,450 psi | 90% | 2861 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 49,385 psi | 76% | 2687 fps | 96% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,857 psi | 63% | 2585 fps | 99.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 45,745 psi | 70% | 2746 fps | 99.1% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,014 psi | 86% | 2736 fps | 99.9% |
| Bofors RP3 | <<locked>> | 92% | 57,943 psi | 89% | 2753 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 57,682 psi | 89% | 2726 fps | 98.4% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,695 psi | 87% | 2648 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 58,160 psi | 89% | 2743 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 56,521 psi | 87% | 2792 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 55,187 psi | 85% | 2720 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 98% | 58,682 psi | 90% | 2825 fps | 99% |
| Hodgdon H4350 | <<locked>> | 94% | 55,477 psi | 85% | 2733 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 86% | 56,637 psi | 87% | 2723 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,069 psi | 82% | 2703 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 56,275 psi | 87% | 2759 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 55,288 psi | 85% | 2808 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,636 psi | 55% | 1634 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 57,812 psi | 89% | 2723 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 56,855 psi | 87% | 2703 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 56,579 psi | 87% | 2700 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,449 psi | 87% | 2684 fps | 98.6% |
| IMR 4350ᴾ | <<locked>> | 100% | 58,059 psi | 89% | 2753 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,347 psi | 87% | 2710 fps | 98.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,304 psi | 87% | 2766 fps | 99.9% |
| IMR 4895 | <<locked>> | 88% | 55,753 psi | 86% | 2740 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 58,508 psi | 90% | 2713 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 55,869 psi | 86% | 2687 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,390 psi | 85% | 2644 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 56,391 psi | 87% | 2694 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 55,782 psi | 86% | 2703 fps | 99.4% |
| Lovex S070 | <<locked>> | 98% | 56,478 psi | 87% | 2736 fps | 98.8% |
| Norma 201 | <<locked>> | 88% | 58,436 psi | 90% | 2710 fps | 100% |
| Norma 202 | <<locked>> | 88% | 58,798 psi | 90% | 2703 fps | 100% |
| Norma 203B | <<locked>> | 90% | 57,116 psi | 88% | 2746 fps | 100% |
| Norma 204 | <<locked>> | 98% | 55,390 psi | 85% | 2756 fps | 97% |
| Norma MRPᴾ | <<locked>> | 100% | 45,571 psi | 70% | 2700 fps | 96.7% |
| Norma URPᴾ | <<locked>> | 100% | 58,305 psi | 90% | 2808 fps | 100% |
| Ramshot Big Game | <<locked>> | 90% | 57,682 psi | 89% | 2772 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 57,174 psi | 88% | 2812 fps | 99.4% |
| Ramshot TAC | <<locked>> | 84% | 55,187 psi | 85% | 2687 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 86% | 58,711 psi | 90% | 2756 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,753 psi | 86% | 2667 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,201 psi | 56% | 1673 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 57,928 psi | 89% | 2690 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,521 psi | 85% | 2703 fps | 99% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 58,755 psi | 90% | 2828 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 58,001 psi | 89% | 2858 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 55,347 psi | 85% | 2795 fps | 99.8% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 58,755 psi | 90% | 2881 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 84% | 55,985 psi | 86% | 2641 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,303 psi | 85% | 2657 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 57,812 psi | 89% | 2743 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 48,196 psi | 74% | 2671 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 96% | 57,682 psi | 89% | 2726 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,782 psi | 86% | 2703 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 86% | 55,869 psi | 86% | 2687 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,391 psi | 87% | 2694 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 56,478 psi | 87% | 2736 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 55,927 psi | 86% | 2756 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 57,464 psi | 88% | 2720 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 58,088 psi | 89% | 2740 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,391 psi | 87% | 2602 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 56,507 psi | 87% | 2598 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 55,883 psi | 86% | 2657 fps | 98.5% |
| Somchem S321 | <<locked>> | 82% | 56,159 psi | 86% | 2697 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,608 psi | 86% | 2595 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 57,116 psi | 88% | 2710 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 57,957 psi | 89% | 2740 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 52,649 psi | 81% | 2759 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 48,950 psi | 75% | 2654 fps | 96.9% |
| Vihtavuori N130 | <<locked>> | 82% | 55,869 psi | 86% | 2556 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,666 psi | 87% | 2582 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 58,769 psi | 90% | 2664 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,854 psi | 86% | 2641 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 55,883 psi | 86% | 2671 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 57,363 psi | 88% | 2756 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 84% | 55,608 psi | 86% | 2667 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 57,522 psi | 88% | 2684 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,144 psi | 86% | 2762 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,976 psi | 69% | 2657 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 57,580 psi | 89% | 2736 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 55,434 psi | 85% | 2710 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 58,682 psi | 90% | 2825 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,564 psi | 56% | 2598 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 88% | 58,044 psi | 89% | 2746 fps | 100% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 50,372 psi | 77% | 2523 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,337 psi | 67% | 2461 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,270 psi | 77% | 2605 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 45,150 psi | 69% | 2490 fps | 95.7% |
| Accurate 3100 | <<locked>> | 96% | 37,333 psi | 57% | 2451 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 41,002 psi | 63% | 2461 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 32,314 psi | 50% | 2352 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 46,586 psi | 72% | 2569 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 39,581 psi | 61% | 2428 fps | 98.4% |
| ADI AR 2209 | <<locked>> | 98% | 47,529 psi | 73% | 2648 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,631 psi | 75% | 2572 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 49,197 psi | 76% | 2549 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,308 psi | 65% | 2605 fps | 98.9% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 47,210 psi | 73% | 2644 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,349 psi | 61% | 2451 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,221 psi | 65% | 2510 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 82% | 32,532 psi | 50% | 2365 fps | 95.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 33,997 psi | 52% | 2428 fps | 98.2% |
| Alliant Reloder-19 | <<locked>> | 98% | 46,557 psi | 72% | 2638 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 88% | 28,282 psi | 44% | 2280 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 92% | 34,519 psi | 53% | 2500 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,861 psi | 71% | 2579 fps | 99.2% |
| Bofors RP3 | <<locked>> | 80% | 39,117 psi | 60% | 2457 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 42,554 psi | 65% | 2480 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,328 psi | 77% | 2556 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,514 psi | 73% | 2595 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 52,663 psi | 81% | 2740 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 39,856 psi | 61% | 2461 fps | 97.5% |
| Hodgdon H414 | <<locked>> | 86% | 39,421 psi | 61% | 2503 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 88% | 45,803 psi | 70% | 2575 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 47,007 psi | 72% | 2579 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,978 psi | 43% | 2218 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,091 psi | 66% | 2556 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 88% | 41,684 psi | 64% | 2569 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,701 psi | 41% | 1460 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,962 psi | 69% | 2530 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 46,905 psi | 72% | 2566 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,539 psi | 64% | 2461 fps | 98.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,859 psi | 67% | 2477 fps | 96.3% |
| IMR 4350 | <<locked>> | 90% | 42,714 psi | 66% | 2507 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 84% | 41,365 psi | 64% | 2457 fps | 95.5% |
| IMR 4831 | <<locked>> | 82% | 31,241 psi | 48% | 2310 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 43,279 psi | 67% | 2539 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 80% | 48,631 psi | 75% | 2572 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 45,876 psi | 71% | 2546 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,325 psi | 71% | 2503 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 41,582 psi | 64% | 2464 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 36,347 psi | 56% | 2362 fps | 95.6% |
| Lovex S070 | <<locked>> | 86% | 39,146 psi | 60% | 2441 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 45,716 psi | 70% | 2523 fps | 100% |
| Norma 202 | <<locked>> | 80% | 45,919 psi | 71% | 2526 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,597 psi | 64% | 2500 fps | 99.2% |
| Norma 204 | <<locked>> | 94% | 48,254 psi | 74% | 2644 fps | 95.4% |
| Norma MRP | <<locked>> | 98% | 42,656 psi | 66% | 2644 fps | 95.9% |
| Norma URP | <<locked>> | 82% | 32,518 psi | 50% | 2352 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 41,075 psi | 63% | 2513 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 86% | 36,274 psi | 56% | 2444 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 48,544 psi | 75% | 2585 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,080 psi | 74% | 2602 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,446 psi | 81% | 2621 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,079 psi | 42% | 1496 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 54,360 psi | 84% | 2641 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,219 psi | 62% | 2444 fps | 96% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,628 psi | 69% | 2612 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,187 psi | 56% | 2490 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 32,053 psi | 49% | 2365 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 34,272 psi | 53% | 2425 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 49,559 psi | 76% | 2552 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,439 psi | 67% | 2477 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 36,854 psi | 57% | 2405 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 98% | 45,049 psi | 69% | 2615 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 86% | 42,554 psi | 65% | 2480 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 82% | 36,347 psi | 56% | 2362 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,876 psi | 71% | 2546 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,582 psi | 64% | 2464 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 39,146 psi | 60% | 2441 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,666 psi | 58% | 2451 fps | 98.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,876 psi | 72% | 2562 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,947 psi | 69% | 2539 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,775 psi | 72% | 2467 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,073 psi | 60% | 2346 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 40,451 psi | 62% | 2408 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 52,750 psi | 81% | 2648 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,557 psi | 72% | 2470 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,673 psi | 72% | 2556 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 37,637 psi | 58% | 2408 fps | 98.9% |
| Somchem S365 | <<locked>> | 80% | 27,325 psi | 42% | 2254 fps | 97.1% |
| Somchem S385 | <<locked>> | 96% | 42,946 psi | 66% | 2549 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 52,678 psi | 81% | 2516 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,166 psi | 73% | 2457 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,989 psi | 66% | 2451 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,598 psi | 67% | 2464 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,795 psi | 55% | 2349 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 80% | 31,879 psi | 49% | 2303 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 48,791 psi | 75% | 2569 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 41,916 psi | 64% | 2457 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 33,460 psi | 51% | 2356 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 88% | 30,414 psi | 47% | 2352 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,662 psi | 49% | 2283 fps | 97.5% |
| Winchester 748 | <<locked>> | 80% | 48,704 psi | 75% | 2615 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 39,624 psi | 61% | 2507 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 92% | 28,253 psi | 43% | 2352 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,440 psi | 68% | 2543 fps | 99.8% |
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 | 185gr | Berger OTM Jaggenaut Tactical. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,881 fps; across all powders the maximum-charge window runs from 1,634 fps to 2,881 fps. Accurate 3100 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 55–90 %, leaving at least 10 % headroom. The 185.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint 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.