Load Specifications
Bullet Manufacturer:Sellier & Bellot
Bullet Weight:180 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 | 180gr | Sellier & Bellot XRG 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% | 56,057 psi | 86% | 2628 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 58,189 psi | 90% | 2703 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 58,552 psi | 90% | 2700 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 56,507 psi | 87% | 2720 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 57,537 psi | 89% | 2710 fps | 97.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 41,785 psi | 64% | 2562 fps | 96.5% |
| Accurate 4064 | <<locked>> | 92% | 58,566 psi | 90% | 2749 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 58,349 psi | 90% | 2838 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 88% | 58,581 psi | 90% | 2779 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 56,144 psi | 86% | 2733 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 86% | 57,450 psi | 88% | 2730 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 58,769 psi | 90% | 2700 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 58,494 psi | 90% | 2904 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 56,260 psi | 87% | 2756 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 56,811 psi | 87% | 2776 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 55,593 psi | 86% | 2838 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 96% | 56,884 psi | 88% | 2874 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,045 psi | 62% | 2595 fps | 99.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,556 psi | 69% | 2749 fps | 98.6% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 58,523 psi | 90% | 2802 fps | 100% |
| Bofors RP3 | <<locked>> | 92% | 56,811 psi | 87% | 2769 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 57,000 psi | 88% | 2746 fps | 98% |
| Hodgdon Benchmark | <<locked>> | 84% | 55,753 psi | 86% | 2664 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 57,072 psi | 88% | 2762 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 55,259 psi | 85% | 2808 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 58,131 psi | 89% | 2717 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 57,827 psi | 89% | 2785 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 98% | 57,450 psi | 88% | 2838 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 96% | 57,943 psi | 89% | 2799 fps | 97.6% |
| Hodgdon H4895 | <<locked>> | 86% | 55,593 psi | 86% | 2740 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,837 psi | 80% | 2720 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 58,740 psi | 90% | 2825 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 58,233 psi | 90% | 2877 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,607 psi | 55% | 1650 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 56,710 psi | 87% | 2740 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 55,680 psi | 86% | 2720 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 55,535 psi | 85% | 2717 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 55,521 psi | 85% | 2697 fps | 98.2% |
| IMR 4198 | <<locked>> | 82% | 58,595 psi | 90% | 2625 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 56,971 psi | 88% | 2766 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 96% | 58,610 psi | 90% | 2772 fps | 98.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 55,114 psi | 85% | 2779 fps | 99.8% |
| IMR 4895 | <<locked>> | 90% | 58,262 psi | 90% | 2805 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 57,450 psi | 88% | 2730 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 58,131 psi | 89% | 2720 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 58,813 psi | 90% | 2756 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 57,928 psi | 89% | 2707 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 55,680 psi | 86% | 2713 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 58,015 psi | 89% | 2766 fps | 99.4% |
| Lovex S070 | <<locked>> | 98% | 55,463 psi | 85% | 2749 fps | 98.4% |
| Norma 201 | <<locked>> | 88% | 57,406 psi | 88% | 2726 fps | 100% |
| Norma 202 | <<locked>> | 88% | 58,015 psi | 89% | 2726 fps | 100% |
| Norma 203B | <<locked>> | 90% | 56,043 psi | 86% | 2762 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 57,696 psi | 89% | 2818 fps | 97% |
| Norma MRPᴾ | <<locked>> | 100% | 44,614 psi | 69% | 2707 fps | 96% |
| Norma URPᴾ | <<locked>> | 100% | 57,043 psi | 88% | 2825 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 90% | 56,492 psi | 87% | 2789 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 55,666 psi | 86% | 2822 fps | 99% |
| Ramshot TAC | <<locked>> | 86% | 58,001 psi | 89% | 2756 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 86% | 57,638 psi | 89% | 2772 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 58,566 psi | 90% | 2736 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,172 psi | 56% | 1690 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 56,898 psi | 88% | 2707 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 58,001 psi | 89% | 2769 fps | 99% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 57,435 psi | 88% | 2841 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 56,724 psi | 87% | 2874 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 57,856 psi | 89% | 2861 fps | 99.9% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 57,595 psi | 89% | 2894 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 86% | 58,392 psi | 90% | 2703 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 57,899 psi | 89% | 2723 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 56,681 psi | 87% | 2762 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 57,000 psi | 88% | 2746 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 98% | 58,015 psi | 89% | 2766 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 88% | 58,813 psi | 90% | 2756 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 55,680 psi | 86% | 2713 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 55,463 psi | 85% | 2749 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 58,450 psi | 90% | 2822 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 56,449 psi | 87% | 2736 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 57,043 psi | 88% | 2756 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 58,813 psi | 90% | 2661 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 55,506 psi | 85% | 2618 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 58,697 psi | 90% | 2723 fps | 98.6% |
| Somchem S321 | <<locked>> | 82% | 55,477 psi | 85% | 2717 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 58,233 psi | 90% | 2661 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 56,057 psi | 86% | 2726 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 56,898 psi | 88% | 2756 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 51,387 psi | 79% | 2776 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 47,964 psi | 74% | 2664 fps | 96.3% |
| Vihtavuori N130 | <<locked>> | 84% | 58,508 psi | 90% | 2621 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 55,651 psi | 86% | 2602 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 57,595 psi | 89% | 2684 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 58,407 psi | 90% | 2703 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 58,595 psi | 90% | 2736 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 56,144 psi | 86% | 2772 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 86% | 58,262 psi | 90% | 2733 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 56,463 psi | 87% | 2703 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 58,653 psi | 90% | 2825 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,859 psi | 67% | 2667 fps | 99.1% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 56,231 psi | 87% | 2749 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 58,276 psi | 90% | 2779 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 57,450 psi | 88% | 2838 fps | 98.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,694 psi | 55% | 2598 fps | 99.2% |
| Winchester StaBALL Match | <<locked>> | 88% | 56,942 psi | 88% | 2762 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% | 49,734 psi | 77% | 2546 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 54,534 psi | 84% | 2657 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,612 psi | 66% | 2480 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,574 psi | 76% | 2625 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 44,396 psi | 68% | 2503 fps | 95.1% |
| Accurate 3100 | <<locked>> | 98% | 39,175 psi | 60% | 2513 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 40,292 psi | 62% | 2477 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 31,647 psi | 49% | 2362 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 45,730 psi | 70% | 2582 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 80% | 39,044 psi | 60% | 2444 fps | 98% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,747 psi | 73% | 2585 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 48,399 psi | 74% | 2569 fps | 100% |
| Alliant Power Pro 2000-MR | 49.9 gr | 80% | 41,684 psi | 64% | 2618 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,798 psi | 60% | 2467 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,437 psi | 64% | 2523 fps | 98.6% |
| Alliant Reloder-16 | <<locked>> | 82% | 31,981 psi | 49% | 2369 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 33,388 psi | 51% | 2438 fps | 97.6% |
| Alliant Reloder-23 | <<locked>> | 90% | 29,486 psi | 45% | 2336 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 92% | 33,881 psi | 52% | 2503 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,976 psi | 69% | 2592 fps | 98.8% |
| Bofors RP3 | <<locked>> | 80% | 38,363 psi | 59% | 2470 fps | 99.2% |
| Bofors RP7 | <<locked>> | 88% | 44,599 psi | 69% | 2543 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,443 psi | 76% | 2575 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,833 psi | 72% | 2615 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 51,764 psi | 80% | 2756 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 80% | 54,737 psi | 84% | 2674 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 39,102 psi | 60% | 2470 fps | 97% |
| Hodgdon H414 | <<locked>> | 88% | 41,452 psi | 64% | 2572 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 90% | 48,095 psi | 74% | 2641 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 46,151 psi | 71% | 2595 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,659 psi | 43% | 2228 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,192 psi | 65% | 2569 fps | 99.7% |
| Hodgdon Superformance | 58.4 gr | 90% | 43,859 psi | 67% | 2638 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,658 psi | 41% | 1476 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,338 psi | 68% | 2549 fps | 99.6% |
| IMR 3031 | <<locked>> | 80% | 46,180 psi | 71% | 2585 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,017 psi | 63% | 2474 fps | 98.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,395 psi | 67% | 2493 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 55,419 psi | 85% | 2585 fps | 100% |
| IMR 4350 | <<locked>> | 92% | 44,643 psi | 69% | 2569 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 43,294 psi | 67% | 2520 fps | 95.6% |
| IMR 4831 | <<locked>> | 84% | 32,938 psi | 51% | 2375 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 42,438 psi | 65% | 2552 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 80% | 47,747 psi | 73% | 2585 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 54,244 psi | 83% | 2667 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 45,266 psi | 70% | 2566 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,774 psi | 70% | 2523 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 41,046 psi | 63% | 2480 fps | 99.6% |
| Lovex S065 | <<locked>> | 82% | 35,911 psi | 55% | 2379 fps | 95% |
| Lovex S070 | <<locked>> | 88% | 41,017 psi | 63% | 2503 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 44,904 psi | 69% | 2536 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 45,339 psi | 70% | 2546 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,857 psi | 63% | 2513 fps | 98.9% |
| Norma 204 | <<locked>> | 96% | 50,517 psi | 78% | 2707 fps | 95.5% |
| Norma MRP | <<locked>> | 98% | 41,814 psi | 64% | 2651 fps | 95.1% |
| Norma URP | <<locked>> | 82% | 32,068 psi | 49% | 2362 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 40,437 psi | 62% | 2530 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 88% | 37,942 psi | 58% | 2503 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 47,688 psi | 73% | 2598 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,210 psi | 73% | 2615 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,547 psi | 79% | 2638 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,006 psi | 42% | 1512 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 53,345 psi | 82% | 2661 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,552 psi | 61% | 2454 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,903 psi | 68% | 2628 fps | 99% |
| ReloadSwiss RS 60 | 49.1 gr | 80% | 35,505 psi | 55% | 2500 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 33,518 psi | 52% | 2428 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 35,868 psi | 55% | 2487 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 49,052 psi | 75% | 2572 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,946 psi | 66% | 2497 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 36,187 psi | 56% | 2418 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 88% | 44,599 psi | 69% | 2543 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 82% | 35,911 psi | 55% | 2379 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,266 psi | 70% | 2566 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,046 psi | 63% | 2480 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 88% | 41,017 psi | 63% | 2503 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,130 psi | 57% | 2467 fps | 98.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,050 psi | 71% | 2575 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,353 psi | 68% | 2556 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,238 psi | 71% | 2487 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,566 psi | 59% | 2362 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 42,438 psi | 65% | 2470 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 51,793 psi | 80% | 2667 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,788 psi | 70% | 2490 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,818 psi | 70% | 2572 fps | 99.5% |
| Somchem S355 | <<locked>> | 80% | 36,985 psi | 57% | 2421 fps | 98.5% |
| Somchem S365 | <<locked>> | 80% | 27,035 psi | 42% | 2267 fps | 96.5% |
| Somchem S385 | <<locked>> | 98% | 44,889 psi | 69% | 2612 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 52,054 psi | 80% | 2539 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,557 psi | 72% | 2480 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,409 psi | 65% | 2474 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,772 psi | 66% | 2480 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,128 psi | 54% | 2359 fps | 99.1% |
| Vihtavuori N160 | <<locked>> | 82% | 33,417 psi | 51% | 2365 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 47,877 psi | 74% | 2582 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 41,176 psi | 63% | 2470 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 32,808 psi | 50% | 2365 fps | 95% |
| Vihtavuori N555 | <<locked>> | 88% | 29,776 psi | 46% | 2359 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,125 psi | 48% | 2293 fps | 96.9% |
| Winchester 748 | <<locked>> | 80% | 47,688 psi | 73% | 2628 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 41,452 psi | 64% | 2572 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 92% | 27,818 psi | 43% | 2356 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,830 psi | 67% | 2562 fps | 99.6% |
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 | 180gr | Sellier & Bellot XRG. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,904 fps; across all powders the maximum-charge window runs from 1,650 fps to 2,904 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 180.0 gr projectile in 0.308" calls for a 1:12.0 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 | 180gr | Sellier & Bellot XRG 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.