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:1:11.0
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 185gr | Berger Hybrid Target 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 Power Pro 2000-MR and Hodgdon Superformance.
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% | 56,289 psi | 87% | 2595 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 58,175 psi | 89% | 2667 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 58,494 psi | 90% | 2661 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 56,594 psi | 87% | 2680 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 57,493 psi | 88% | 2674 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 41,742 psi | 64% | 2530 fps | 96.8% |
| Accurate 4064 | <<locked>> | 92% | 58,320 psi | 90% | 2710 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 58,436 psi | 90% | 2802 fps | 100% |
| ADI AR 2206H | <<locked>> | 88% | 58,784 psi | 90% | 2746 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 56,086 psi | 86% | 2694 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 86% | 57,551 psi | 89% | 2694 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 55,259 psi | 85% | 2621 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 58,581 psi | 90% | 2864 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 56,159 psi | 86% | 2717 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 56,753 psi | 87% | 2736 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 55,709 psi | 86% | 2805 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 96% | 57,087 psi | 88% | 2838 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,045 psi | 62% | 2562 fps | 99.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,715 psi | 69% | 2717 fps | 98.8% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 54,955 psi | 85% | 2713 fps | 99.9% |
| Bofors RP3 | <<locked>> | 92% | 57,087 psi | 88% | 2736 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 56,956 psi | 88% | 2710 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 84% | 55,796 psi | 86% | 2628 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 57,246 psi | 88% | 2726 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 55,550 psi | 85% | 2772 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 58,537 psi | 90% | 2684 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 58,117 psi | 89% | 2749 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 98% | 57,348 psi | 88% | 2799 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 96% | 58,030 psi | 89% | 2762 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 86% | 55,695 psi | 86% | 2703 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,938 psi | 80% | 2684 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 55,027 psi | 85% | 2736 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 58,262 psi | 90% | 2841 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,694 psi | 55% | 1627 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 56,898 psi | 88% | 2707 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 56,057 psi | 86% | 2687 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 55,680 psi | 86% | 2680 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 55,666 psi | 86% | 2664 fps | 98.4% |
| IMR 4198 | <<locked>> | 82% | 58,813 psi | 90% | 2589 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 57,116 psi | 88% | 2733 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 96% | 58,668 psi | 90% | 2736 fps | 98.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,911 psi | 84% | 2740 fps | 99.9% |
| IMR 4895 | <<locked>> | 90% | 58,204 psi | 90% | 2766 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 57,551 psi | 89% | 2694 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 58,175 psi | 89% | 2680 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 58,682 psi | 90% | 2717 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 58,059 psi | 89% | 2671 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 55,463 psi | 85% | 2674 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 58,030 psi | 89% | 2726 fps | 99.5% |
| Lovex S070 | <<locked>> | 98% | 55,521 psi | 85% | 2713 fps | 98.6% |
| Norma 201 | <<locked>> | 88% | 57,464 psi | 88% | 2690 fps | 100% |
| Norma 202 | <<locked>> | 88% | 58,146 psi | 89% | 2690 fps | 100% |
| Norma 203B | <<locked>> | 90% | 55,912 psi | 86% | 2726 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 57,972 psi | 89% | 2785 fps | 97.3% |
| Norma MRPᴾ | <<locked>> | 100% | 44,498 psi | 68% | 2671 fps | 96.2% |
| Norma URPᴾ | <<locked>> | 100% | 57,188 psi | 88% | 2789 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 90% | 56,565 psi | 87% | 2753 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 55,883 psi | 86% | 2789 fps | 99.2% |
| Ramshot TAC | <<locked>> | 86% | 57,928 psi | 89% | 2720 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 86% | 57,566 psi | 89% | 2733 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 58,479 psi | 90% | 2697 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,245 psi | 56% | 1667 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 56,956 psi | 88% | 2671 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 58,030 psi | 89% | 2730 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 57,435 psi | 88% | 2805 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 56,855 psi | 87% | 2835 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 58,131 psi | 89% | 2828 fps | 99.9% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 57,609 psi | 89% | 2858 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 86% | 58,218 psi | 90% | 2664 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 57,986 psi | 89% | 2687 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 56,956 psi | 88% | 2726 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 56,956 psi | 88% | 2710 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 98% | 58,030 psi | 89% | 2726 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 88% | 58,682 psi | 90% | 2717 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 55,463 psi | 85% | 2674 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 55,521 psi | 85% | 2713 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 58,523 psi | 90% | 2785 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 56,362 psi | 87% | 2697 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 56,971 psi | 88% | 2717 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,405 psi | 85% | 2582 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 55,651 psi | 86% | 2582 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 58,726 psi | 90% | 2687 fps | 98.8% |
| Somchem S321 | <<locked>> | 82% | 55,274 psi | 85% | 2677 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 58,291 psi | 90% | 2625 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 56,014 psi | 86% | 2690 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 57,087 psi | 88% | 2723 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 51,488 psi | 79% | 2740 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 47,776 psi | 74% | 2628 fps | 96.5% |
| Vihtavuori N130 | <<locked>> | 84% | 58,450 psi | 90% | 2582 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 55,666 psi | 86% | 2566 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 57,725 psi | 89% | 2648 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 58,610 psi | 90% | 2667 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 58,610 psi | 90% | 2700 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 56,289 psi | 87% | 2736 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 86% | 58,392 psi | 90% | 2694 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 56,695 psi | 87% | 2667 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 55,100 psi | 85% | 2743 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,888 psi | 68% | 2631 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 56,463 psi | 87% | 2713 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 58,175 psi | 89% | 2740 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 57,682 psi | 89% | 2805 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,694 psi | 55% | 2569 fps | 99.4% |
| Winchester StaBALL Match | <<locked>> | 88% | 56,942 psi | 88% | 2726 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% | 49,545 psi | 76% | 2507 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 54,534 psi | 84% | 2621 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,554 psi | 65% | 2444 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,574 psi | 76% | 2589 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 44,411 psi | 68% | 2470 fps | 95.4% |
| Accurate 3100 | <<locked>> | 96% | 36,448 psi | 56% | 2428 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 40,248 psi | 62% | 2444 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 31,502 psi | 48% | 2329 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 45,876 psi | 71% | 2552 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 38,957 psi | 60% | 2408 fps | 98.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,964 psi | 74% | 2556 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 48,283 psi | 74% | 2530 fps | 100% |
| Alliant Power Pro 2000-MR | 49.3 gr | 80% | 41,727 psi | 64% | 2589 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,638 psi | 59% | 2431 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,582 psi | 64% | 2493 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 82% | 32,024 psi | 49% | 2343 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 33,330 psi | 51% | 2408 fps | 97.8% |
| Alliant Reloder-23 | <<locked>> | 88% | 27,746 psi | 43% | 2257 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 92% | 33,794 psi | 52% | 2474 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,049 psi | 69% | 2556 fps | 99% |
| Bofors RP3 | <<locked>> | 80% | 38,464 psi | 59% | 2438 fps | 99.3% |
| Bofors RP7 | <<locked>> | 88% | 44,353 psi | 68% | 2507 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,617 psi | 76% | 2539 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,847 psi | 72% | 2579 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 51,663 psi | 79% | 2717 fps | 99.9% |
| Hodgdon H322 | <<locked>> | 80% | 54,723 psi | 84% | 2635 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 39,204 psi | 60% | 2441 fps | 97.2% |
| Hodgdon H414 | <<locked>> | 88% | 41,321 psi | 64% | 2536 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 88% | 45,020 psi | 69% | 2556 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 46,340 psi | 71% | 2562 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,456 psi | 42% | 2195 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,221 psi | 65% | 2536 fps | 99.7% |
| Hodgdon Superformance | 57.7 gr | 90% | 43,903 psi | 68% | 2608 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,585 psi | 41% | 1450 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,295 psi | 68% | 2513 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 46,064 psi | 71% | 2549 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,915 psi | 63% | 2441 fps | 98.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,294 psi | 67% | 2461 fps | 96% |
| IMR 4198 | <<locked>> | 80% | 55,593 psi | 86% | 2549 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 41,989 psi | 65% | 2487 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 84% | 40,857 psi | 63% | 2441 fps | 95.2% |
| IMR 4831 | <<locked>> | 82% | 30,690 psi | 47% | 2293 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 42,612 psi | 66% | 2523 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 80% | 47,964 psi | 74% | 2556 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 54,215 psi | 83% | 2631 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 45,136 psi | 69% | 2530 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,672 psi | 70% | 2487 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 40,886 psi | 63% | 2444 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 35,766 psi | 55% | 2346 fps | 95.2% |
| Lovex S070 | <<locked>> | 88% | 40,756 psi | 63% | 2467 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 44,962 psi | 69% | 2503 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 45,194 psi | 70% | 2507 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,959 psi | 63% | 2484 fps | 99.1% |
| Norma 204 | <<locked>> | 94% | 47,340 psi | 73% | 2621 fps | 95% |
| Norma MRP | <<locked>> | 98% | 41,640 psi | 64% | 2615 fps | 95.3% |
| Norma URP | <<locked>> | 82% | 31,937 psi | 49% | 2333 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 40,480 psi | 62% | 2497 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 88% | 37,797 psi | 58% | 2470 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 47,747 psi | 73% | 2566 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,253 psi | 73% | 2582 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,576 psi | 79% | 2602 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,963 psi | 41% | 1486 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 53,664 psi | 83% | 2628 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,465 psi | 61% | 2425 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,859 psi | 67% | 2592 fps | 99.2% |
| ReloadSwiss RS 60 | 48.5 gr | 80% | 35,476 psi | 55% | 2467 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 33,504 psi | 52% | 2398 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 35,940 psi | 55% | 2457 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 48,791 psi | 75% | 2533 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,728 psi | 66% | 2457 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 36,201 psi | 56% | 2385 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 88% | 44,353 psi | 68% | 2507 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 82% | 35,766 psi | 55% | 2346 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,136 psi | 69% | 2530 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,886 psi | 63% | 2444 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 40,756 psi | 63% | 2467 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,086 psi | 57% | 2434 fps | 98.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,064 psi | 71% | 2539 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,324 psi | 68% | 2523 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,021 psi | 71% | 2451 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,392 psi | 59% | 2326 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 39,697 psi | 61% | 2388 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 51,822 psi | 80% | 2631 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,890 psi | 71% | 2454 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,876 psi | 71% | 2536 fps | 99.6% |
| Somchem S355 | <<locked>> | 80% | 36,985 psi | 57% | 2392 fps | 98.7% |
| Somchem S365 | <<locked>> | 80% | 26,847 psi | 41% | 2234 fps | 96.7% |
| Somchem S385 | <<locked>> | 96% | 42,032 psi | 65% | 2526 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 51,895 psi | 80% | 2500 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,383 psi | 71% | 2441 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,206 psi | 65% | 2434 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,931 psi | 66% | 2448 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,201 psi | 54% | 2329 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 82% | 33,330 psi | 51% | 2333 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 48,095 psi | 74% | 2552 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 41,307 psi | 64% | 2441 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 32,721 psi | 50% | 2333 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 88% | 29,689 psi | 46% | 2329 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,082 psi | 48% | 2264 fps | 97.1% |
| Winchester 748 | <<locked>> | 80% | 47,718 psi | 73% | 2592 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 41,539 psi | 64% | 2539 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 92% | 27,644 psi | 43% | 2323 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,830 psi | 67% | 2526 fps | 99.7% |
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 | 185gr | Berger Hybrid Target. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,864 fps; across all powders the maximum-charge window runs from 1,627 fps to 2,864 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 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, Alliant Reloder-16 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 Power Pro 2000-MR, Hodgdon Superformance rank at the top here: for .300 Rem. SA Ultra Mag. with the .308 | 185gr | Berger Hybrid Target 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.