Load Specifications
Bullet:.31 | 200gr | Lapua D166
Bullet Manufacturer:Lapua
Bullet Weight:200 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:1:13.0
Load data in caliber .300 Rem. SA Ultra Mag. with .31 | 200gr | Lapua D166 bullet and 109 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 60.
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% | 57,740 psi | 89% | 2520 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 57,246 psi | 88% | 2552 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 58,537 psi | 90% | 2615 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 55,434 psi | 85% | 2575 fps | 98.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,964 psi | 74% | 2556 fps | 99% |
| Accurate 4064 | <<locked>> | 88% | 57,450 psi | 88% | 2605 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 57,899 psi | 89% | 2707 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 56,753 psi | 87% | 2631 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 58,030 psi | 89% | 2638 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 55,100 psi | 85% | 2694 fps | 98.1% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,550 psi | 85% | 2579 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 57,232 psi | 88% | 2546 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 57,029 psi | 88% | 2756 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 58,537 psi | 90% | 2657 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 58,784 psi | 90% | 2677 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 58,320 psi | 90% | 2753 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 56,260 psi | 87% | 2736 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 54,331 psi | 84% | 2684 fps | 98.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 47,703 psi | 73% | 2628 fps | 97% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,165 psi | 69% | 2579 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,494 psi | 61% | 2497 fps | 98.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 51,140 psi | 79% | 2749 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 56,826 psi | 87% | 2654 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 43,888 psi | 68% | 2556 fps | 95.9% |
| Bofors RP3 | <<locked>> | 88% | 55,637 psi | 86% | 2628 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 47,703 psi | 73% | 2628 fps | 97% |
| Bofors RP7 | <<locked>> | 94% | 58,798 psi | 90% | 2657 fps | 99.2% |
| Hodgdon Benchmark | <<locked>> | 82% | 57,116 psi | 88% | 2559 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,201 psi | 85% | 2612 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,333 psi | 87% | 2644 fps | 100% |
| Hodgdon H414 | <<locked>> | 94% | 56,318 psi | 87% | 2703 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 92% | 56,507 psi | 87% | 2664 fps | 98.6% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 52,982 psi | 82% | 2635 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 84% | 57,421 psi | 88% | 2638 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 58,610 psi | 90% | 2677 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 57,334 psi | 88% | 2674 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 56,695 psi | 87% | 2746 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,172 psi | 56% | 1588 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 58,711 psi | 90% | 2641 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 57,972 psi | 89% | 2612 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 57,479 psi | 88% | 2618 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 56,797 psi | 87% | 2605 fps | 99.3% |
| IMR 4350 | <<locked>> | 96% | 55,767 psi | 86% | 2638 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 92% | 57,087 psi | 88% | 2638 fps | 99.3% |
| IMR 4831 | <<locked>> | 98% | 58,059 psi | 89% | 2697 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 56,652 psi | 87% | 2657 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 54,766 psi | 84% | 2625 fps | 96.4% |
| IMR 8208 XBR | <<locked>> | 82% | 55,550 psi | 85% | 2579 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 57,232 psi | 88% | 2608 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 56,057 psi | 86% | 2562 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 57,508 psi | 88% | 2612 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 56,724 psi | 87% | 2631 fps | 99.9% |
| Lovex S070 | <<locked>> | 96% | 57,885 psi | 89% | 2671 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 39,813 psi | 61% | 2418 fps | 97.5% |
| Norma 201 | <<locked>> | 84% | 55,521 psi | 85% | 2575 fps | 100% |
| Norma 202 | <<locked>> | 84% | 56,231 psi | 87% | 2575 fps | 100% |
| Norma 203B | <<locked>> | 88% | 57,986 psi | 89% | 2664 fps | 100% |
| Norma 204 | <<locked>> | 96% | 56,434 psi | 87% | 2690 fps | 98.2% |
| Norma MRPᴾ | <<locked>> | 100% | 50,546 psi | 78% | 2707 fps | 98.8% |
| Norma URP | <<locked>> | 96% | 56,260 psi | 87% | 2687 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 55,143 psi | 85% | 2644 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 54,926 psi | 85% | 2690 fps | 99.7% |
| Ramshot TAC | <<locked>> | 82% | 55,753 psi | 86% | 2612 fps | 99.9% |
| Ramshot Wild Boar | <<locked>> | 82% | 55,651 psi | 86% | 2621 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,811 psi | 57% | 1627 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 56,449 psi | 87% | 2631 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 56,231 psi | 87% | 2697 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 55,753 psi | 86% | 2726 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 57,348 psi | 88% | 2726 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 56,173 psi | 86% | 2756 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 56,666 psi | 87% | 2556 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 56,289 psi | 87% | 2579 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 55,811 psi | 86% | 2625 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 57,014 psi | 88% | 2664 fps | 97.4% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 53,272 psi | 82% | 2667 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 94% | 58,798 psi | 90% | 2657 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 56,724 psi | 87% | 2631 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 84% | 57,232 psi | 88% | 2608 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 57,508 psi | 88% | 2612 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 57,885 psi | 89% | 2671 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 57,261 psi | 88% | 2680 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 58,204 psi | 90% | 2641 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 58,769 psi | 90% | 2654 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 56,768 psi | 87% | 2513 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 57,261 psi | 88% | 2513 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 56,956 psi | 88% | 2592 fps | 99.3% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 52,779 psi | 81% | 2661 fps | 98% |
| Somchem S335 | <<locked>> | 84% | 56,159 psi | 86% | 2510 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 57,885 psi | 89% | 2628 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 55,840 psi | 86% | 2618 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 55,245 psi | 85% | 2612 fps | 96.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 58,711 psi | 90% | 2736 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 53,954 psi | 83% | 2644 fps | 98.7% |
| Vihtavuori N133 | <<locked>> | 84% | 57,174 psi | 88% | 2493 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 56,289 psi | 87% | 2536 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 56,898 psi | 88% | 2556 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 56,956 psi | 88% | 2592 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 54,969 psi | 85% | 2635 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 46,630 psi | 72% | 2523 fps | 97.1% |
| Vihtavuori N530 | <<locked>> | 82% | 56,217 psi | 86% | 2582 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 58,479 psi | 90% | 2602 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 57,725 psi | 89% | 2690 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,343 psi | 77% | 2648 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 58,537 psi | 90% | 2654 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 56,434 psi | 87% | 2625 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 56,637 psi | 87% | 2707 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,437 psi | 62% | 2618 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,347 psi | 85% | 2615 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 50,488 psi | 78% | 2585 fps | 97.2% |
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% | 54,201 psi | 83% | 2477 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 47,326 psi | 73% | 2425 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 54,679 psi | 84% | 2569 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,556 psi | 70% | 2421 fps | 97% |
| Accurate 3100 | <<locked>> | 90% | 34,026 psi | 52% | 2303 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 44,788 psi | 69% | 2431 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,417 psi | 51% | 2300 fps | 97.3% |
| ADI AR 2206H | <<locked>> | 80% | 50,140 psi | 77% | 2539 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 42,670 psi | 66% | 2405 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 92% | 42,612 psi | 66% | 2484 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,214 psi | 80% | 2536 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 53,867 psi | 83% | 2507 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,427 psi | 71% | 2595 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,743 psi | 66% | 2428 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,745 psi | 70% | 2487 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,315 psi | 51% | 2310 fps | 97.5% |
| Alliant Reloder-17 | 50.5 gr | 80% | 37,260 psi | 57% | 2425 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 42,032 psi | 65% | 2477 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 96% | 42,003 psi | 65% | 2520 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 82% | 25,846 psi | 40% | 2139 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 94% | 32,808 psi | 50% | 2336 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 86% | 31,154 psi | 48% | 2343 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,734 psi | 77% | 2552 fps | 99.9% |
| Bofors RP15 | <<locked>> | 98% | 41,176 psi | 63% | 2503 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 42,931 psi | 66% | 2441 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 42,003 psi | 65% | 2520 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 38,072 psi | 59% | 2316 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,737 psi | 83% | 2516 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,880 psi | 80% | 2566 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,453 psi | 67% | 2444 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 80% | 35,578 psi | 55% | 2343 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 82% | 41,321 psi | 64% | 2415 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 98% | 49,632 psi | 76% | 2582 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 50,705 psi | 78% | 2546 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,835 psi | 47% | 2218 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,152 psi | 73% | 2533 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 37,101 psi | 57% | 2402 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,934 psi | 41% | 1414 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,660 psi | 75% | 2503 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 51,097 psi | 79% | 2526 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,875 psi | 69% | 2434 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,210 psi | 73% | 2461 fps | 98.1% |
| IMR 4350 | <<locked>> | 84% | 38,566 psi | 59% | 2349 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,639 psi | 61% | 2349 fps | 96.2% |
| IMR 4831 | <<locked>> | 80% | 32,401 psi | 50% | 2260 fps | 97% |
| IMR 4895 | <<locked>> | 80% | 46,920 psi | 72% | 2513 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 51,459 psi | 79% | 2575 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 52,214 psi | 80% | 2536 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,082 psi | 77% | 2516 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,545 psi | 76% | 2470 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 44,976 psi | 69% | 2434 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,130 psi | 57% | 2303 fps | 97% |
| Lovex S070 | <<locked>> | 80% | 35,288 psi | 54% | 2283 fps | 95.2% |
| Lovex S071 | <<locked>> | 94% | 32,909 psi | 51% | 2277 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 49,240 psi | 76% | 2490 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,559 psi | 76% | 2487 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,121 psi | 69% | 2477 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 43,366 psi | 67% | 2480 fps | 95.4% |
| Norma MRP | <<locked>> | 92% | 38,653 psi | 59% | 2487 fps | 96% |
| Norma URP | <<locked>> | 80% | 33,591 psi | 52% | 2297 fps | 97.2% |
| Ramshot Big Game | <<locked>> | 80% | 45,165 psi | 69% | 2497 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 34,780 psi | 54% | 2333 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 52,228 psi | 80% | 2559 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,069 psi | 80% | 2572 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,340 psi | 42% | 1450 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,627 psi | 67% | 2431 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,052 psi | 75% | 2592 fps | 100% |
| ReloadSwiss RS 60 | 50.5 gr | 80% | 39,639 psi | 61% | 2477 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,054 psi | 51% | 2313 fps | 96.9% |
| ReloadSwiss RS 70 | 51.3 gr | 80% | 32,750 psi | 50% | 2320 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 53,258 psi | 82% | 2510 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,847 psi | 72% | 2444 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,335 psi | 62% | 2388 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 47,326 psi | 73% | 2516 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 92% | 40,901 psi | 63% | 2457 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 38,072 psi | 59% | 2316 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,130 psi | 57% | 2303 fps | 97% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,082 psi | 77% | 2516 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,976 psi | 69% | 2434 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 35,288 psi | 54% | 2283 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,321 psi | 64% | 2438 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,807 psi | 78% | 2539 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,689 psi | 75% | 2513 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,183 psi | 77% | 2428 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,192 psi | 65% | 2313 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 36,216 psi | 56% | 2251 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 40,524 psi | 62% | 2454 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 49,922 psi | 77% | 2431 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,618 psi | 78% | 2530 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 40,930 psi | 63% | 2388 fps | 99.8% |
| Somchem S361 | <<locked>> | 96% | 51,677 psi | 80% | 2559 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 30,240 psi | 47% | 2260 fps | 99.1% |
| Somchem S385 | <<locked>> | 90% | 38,972 psi | 60% | 2395 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 50,691 psi | 78% | 2415 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,789 psi | 72% | 2415 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,079 psi | 72% | 2428 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,986 psi | 60% | 2326 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 34,911 psi | 54% | 2297 fps | 97.6% |
| Vihtavuori N165 | <<locked>> | 96% | 40,959 psi | 63% | 2425 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 52,750 psi | 81% | 2536 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,455 psi | 70% | 2425 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,490 psi | 53% | 2300 fps | 97.2% |
| Vihtavuori N555 | <<locked>> | 82% | 27,963 psi | 43% | 2208 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,330 psi | 53% | 2274 fps | 99.2% |
| Winchester 748 | <<locked>> | 80% | 52,997 psi | 82% | 2582 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 35,578 psi | 55% | 2343 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 84% | 24,207 psi | 37% | 2156 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,327 psi | 74% | 2516 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 44,150 psi | 68% | 2484 fps | 95.8% |
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 123 powders for .300 Rem. SA Ultra Mag. loaded with the .31 | 200gr | Lapua D166. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,756 fps; across all powders the maximum-charge window runs from 1,588 fps to 2,756 fps. Accurate 3100 gives the best case fill at 100 %, and 123 of the 123 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 49–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, 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. ReloadSwiss RS 70, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .300 Rem. SA Ultra Mag. with the .31 | 200gr | Lapua D166 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2225, Baschieri & Pellagri 109 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.