
Load Specifications
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 200gr | Reichenberg Subsonic bullet and 111 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.
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% | 55,695 psi | 86% | 2497 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 58,421 psi | 90% | 2569 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 56,463 psi | 87% | 2592 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 57,305 psi | 88% | 2598 fps | 98.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,382 psi | 70% | 2516 fps | 98.6% |
| Accurate 4064 | <<locked>> | 90% | 58,334 psi | 90% | 2618 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,100 psi | 85% | 2671 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 58,537 psi | 90% | 2654 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 56,115 psi | 86% | 2612 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 53,316 psi | 82% | 2661 fps | 97.7% |
| ADI Benchmark 8208 | <<locked>> | 84% | 57,377 psi | 88% | 2602 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,463 psi | 85% | 2526 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,926 psi | 85% | 2726 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 53,011 psi | 82% | 2657 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,391 psi | 87% | 2631 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 56,913 psi | 88% | 2654 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,347 psi | 87% | 2726 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 57,943 psi | 89% | 2756 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 52,199 psi | 80% | 2648 fps | 97.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 45,861 psi | 71% | 2595 fps | 96.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,975 psi | 66% | 2543 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,753 psi | 58% | 2457 fps | 97.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,776 psi | 75% | 2713 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 58,755 psi | 90% | 2677 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 57,232 psi | 88% | 2648 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 45,861 psi | 71% | 2595 fps | 96.5% |
| Bofors RP7 | <<locked>> | 94% | 56,768 psi | 87% | 2631 fps | 99% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,434 psi | 85% | 2536 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 57,159 psi | 88% | 2635 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 57,798 psi | 89% | 2664 fps | 100% |
| Hodgdon H414 | <<locked>> | 96% | 57,972 psi | 89% | 2726 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 94% | 58,508 psi | 90% | 2690 fps | 98.8% |
| Hodgdon H4895 | <<locked>> | 84% | 55,564 psi | 85% | 2615 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,449 psi | 87% | 2651 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,521 psi | 85% | 2651 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 58,653 psi | 90% | 2769 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,868 psi | 55% | 1578 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,753 psi | 87% | 2615 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 55,898 psi | 86% | 2589 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,767 psi | 86% | 2595 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,230 psi | 85% | 2582 fps | 99.1% |
| IMR 4350 | <<locked>> | 98% | 57,450 psi | 88% | 2657 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,288 psi | 85% | 2612 fps | 99.1% |
| IMR 4831 | <<locked>> | 98% | 55,579 psi | 86% | 2661 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 58,378 psi | 90% | 2677 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 53,084 psi | 82% | 2598 fps | 95.9% |
| IMR 8208 XBR | <<locked>> | 84% | 57,377 psi | 88% | 2602 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,810 psi | 84% | 2579 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 57,682 psi | 89% | 2582 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 55,564 psi | 85% | 2589 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 58,233 psi | 90% | 2651 fps | 99.9% |
| Lovex S070 | <<locked>> | 96% | 55,767 psi | 86% | 2641 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 37,565 psi | 58% | 2379 fps | 96.8% |
| Norma 201 | <<locked>> | 86% | 57,087 psi | 88% | 2598 fps | 100% |
| Norma 202 | <<locked>> | 86% | 57,943 psi | 89% | 2595 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,130 psi | 86% | 2641 fps | 100% |
| Norma 204 | <<locked>> | 98% | 58,349 psi | 90% | 2713 fps | 98.4% |
| Norma MRPᴾ | <<locked>> | 100% | 48,327 psi | 74% | 2667 fps | 98.4% |
| Norma URP | <<locked>> | 98% | 57,914 psi | 89% | 2710 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 56,942 psi | 88% | 2667 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 56,565 psi | 87% | 2713 fps | 99.8% |
| Ramshot TAC | <<locked>> | 84% | 57,566 psi | 89% | 2635 fps | 99.9% |
| Ramshot Wild Boar | <<locked>> | 84% | 57,450 psi | 88% | 2644 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 58,073 psi | 89% | 2608 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,448 psi | 56% | 1617 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 58,001 psi | 89% | 2651 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 58,015 psi | 89% | 2720 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 57,377 psi | 88% | 2746 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 55,129 psi | 85% | 2700 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 58,059 psi | 89% | 2779 fps | 100% |
| Rottweil R 901 | <<locked>> | 84% | 57,682 psi | 89% | 2569 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 57,566 psi | 89% | 2595 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 57,101 psi | 88% | 2638 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 55,201 psi | 85% | 2635 fps | 96.9% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 51,271 psi | 79% | 2635 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 94% | 56,768 psi | 87% | 2631 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 96% | 58,233 psi | 90% | 2651 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,810 psi | 84% | 2579 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,564 psi | 85% | 2589 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,767 psi | 86% | 2641 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,201 psi | 85% | 2651 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,347 psi | 87% | 2615 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 57,087 psi | 88% | 2631 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 58,421 psi | 90% | 2530 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,608 psi | 86% | 2493 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 58,668 psi | 90% | 2612 fps | 99.4% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 50,778 psi | 78% | 2631 fps | 97.5% |
| Somchem S321 | <<locked>> | 82% | 58,668 psi | 90% | 2635 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 57,812 psi | 89% | 2530 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,869 psi | 86% | 2602 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 57,203 psi | 88% | 2635 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 57,116 psi | 88% | 2631 fps | 96.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 56,405 psi | 87% | 2707 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,880 psi | 80% | 2615 fps | 98.4% |
| Vihtavuori N130 | <<locked>> | 82% | 58,117 psi | 89% | 2490 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 58,784 psi | 90% | 2513 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 57,986 psi | 89% | 2556 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 58,407 psi | 90% | 2572 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 58,581 psi | 90% | 2612 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 56,579 psi | 87% | 2654 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 44,541 psi | 69% | 2487 fps | 96.5% |
| Vihtavuori N530 | <<locked>> | 84% | 58,088 psi | 89% | 2605 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,434 psi | 87% | 2575 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 55,666 psi | 86% | 2664 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,008 psi | 74% | 2615 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 56,753 psi | 87% | 2635 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 58,566 psi | 90% | 2651 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 58,305 psi | 90% | 2730 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,363 psi | 59% | 2572 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 57,116 psi | 88% | 2638 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 48,646 psi | 75% | 2556 fps | 96.7% |
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% | 52,402 psi | 81% | 2457 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,744 psi | 69% | 2395 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,576 psi | 81% | 2543 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,874 psi | 67% | 2392 fps | 96.5% |
| Accurate 3100 | <<locked>> | 92% | 34,418 psi | 53% | 2313 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 42,395 psi | 65% | 2398 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,415 psi | 48% | 2254 fps | 96.5% |
| ADI AR 2206H | <<locked>> | 80% | 48,356 psi | 74% | 2510 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 41,292 psi | 64% | 2379 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 94% | 43,918 psi | 68% | 2503 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,488 psi | 78% | 2510 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,735 psi | 80% | 2484 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,454 psi | 68% | 2562 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 43,758 psi | 67% | 2507 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,133 psi | 63% | 2402 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,903 psi | 68% | 2457 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,778 psi | 49% | 2274 fps | 96.8% |
| Alliant Reloder-17 | 49.8 gr | 80% | 35,621 psi | 55% | 2392 fps | 99.3% |
| Alliant Reloder-19 | <<locked>> | 94% | 43,207 psi | 66% | 2497 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 98% | 42,917 psi | 66% | 2539 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 84% | 25,846 psi | 40% | 2142 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 96% | 33,214 psi | 51% | 2349 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 88% | 31,560 psi | 49% | 2356 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,066 psi | 74% | 2530 fps | 99.8% |
| Bofors RP3 | <<locked>> | 80% | 40,901 psi | 63% | 2405 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 42,917 psi | 66% | 2539 fps | 95.6% |
| Bofors RP7 | <<locked>> | 82% | 38,856 psi | 60% | 2333 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,054 psi | 80% | 2493 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,734 psi | 77% | 2536 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,582 psi | 64% | 2415 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 82% | 36,260 psi | 56% | 2359 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 84% | 42,395 psi | 65% | 2434 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 48,834 psi | 75% | 2520 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,182 psi | 45% | 2182 fps | 97.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,368 psi | 70% | 2507 fps | 100% |
| Hodgdon Superformance | 55.2 gr | 84% | 37,942 psi | 58% | 2421 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,716 psi | 41% | 1407 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,978 psi | 72% | 2477 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 49,327 psi | 76% | 2503 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,410 psi | 67% | 2411 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,643 psi | 70% | 2431 fps | 97.7% |
| IMR 4350 | <<locked>> | 86% | 39,291 psi | 60% | 2365 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 38,145 psi | 59% | 2320 fps | 95.6% |
| IMR 4831 | <<locked>> | 80% | 30,603 psi | 47% | 2221 fps | 96.3% |
| IMR 4895 | <<locked>> | 80% | 45,034 psi | 69% | 2484 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 98% | 49,763 psi | 77% | 2546 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 50,488 psi | 78% | 2510 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,022 psi | 74% | 2487 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,211 psi | 74% | 2451 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 43,323 psi | 67% | 2408 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,404 psi | 54% | 2270 fps | 96.4% |
| Lovex S070 | <<locked>> | 82% | 35,824 psi | 55% | 2297 fps | 95.3% |
| Lovex S071 | <<locked>> | 96% | 32,837 psi | 51% | 2280 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 47,253 psi | 73% | 2461 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,950 psi | 74% | 2464 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,294 psi | 67% | 2448 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 44,396 psi | 68% | 2497 fps | 95.6% |
| Norma MRP | <<locked>> | 92% | 36,637 psi | 56% | 2441 fps | 95% |
| Norma URP | <<locked>> | 80% | 31,850 psi | 49% | 2260 fps | 96.5% |
| Ramshot Big Game | <<locked>> | 80% | 43,178 psi | 66% | 2464 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 33,170 psi | 51% | 2297 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 50,618 psi | 78% | 2536 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,328 psi | 77% | 2546 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 80% | 54,346 psi | 84% | 2559 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,079 psi | 42% | 1444 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,945 psi | 65% | 2402 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,108 psi | 72% | 2562 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,942 psi | 58% | 2444 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,256 psi | 48% | 2274 fps | 96.1% |
| ReloadSwiss RS 70 | 50.5 gr | 80% | 31,082 psi | 48% | 2274 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 51,300 psi | 79% | 2487 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,889 psi | 69% | 2418 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,334 psi | 59% | 2352 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 96% | 48,356 psi | 74% | 2533 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 94% | 41,727 psi | 64% | 2477 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 82% | 38,856 psi | 60% | 2333 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,404 psi | 54% | 2270 fps | 96.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,022 psi | 74% | 2487 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,323 psi | 67% | 2408 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 35,824 psi | 55% | 2297 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,581 psi | 61% | 2405 fps | 99.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,921 psi | 75% | 2510 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,963 psi | 72% | 2487 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,675 psi | 75% | 2408 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,727 psi | 63% | 2290 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 36,883 psi | 57% | 2264 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 41,336 psi | 64% | 2470 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 55,071 psi | 85% | 2585 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 48,124 psi | 74% | 2405 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,892 psi | 75% | 2507 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 39,059 psi | 60% | 2356 fps | 99.6% |
| Somchem S361 | <<locked>> | 98% | 53,229 psi | 82% | 2579 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 28,543 psi | 44% | 2221 fps | 98.6% |
| Somchem S385 | <<locked>> | 92% | 39,755 psi | 61% | 2411 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 54,781 psi | 84% | 2451 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 49,182 psi | 76% | 2395 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,034 psi | 69% | 2392 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,295 psi | 70% | 2402 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,173 psi | 57% | 2297 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 33,214 psi | 51% | 2264 fps | 96.9% |
| Vihtavuori N165 | <<locked>> | 98% | 41,640 psi | 64% | 2434 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 50,937 psi | 78% | 2510 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,714 psi | 67% | 2398 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,764 psi | 50% | 2264 fps | 96.6% |
| Vihtavuori N555 | <<locked>> | 84% | 27,862 psi | 43% | 2208 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,895 psi | 51% | 2244 fps | 98.8% |
| Winchester 748 | <<locked>> | 80% | 51,111 psi | 79% | 2556 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 36,463 psi | 56% | 2362 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 88% | 25,846 psi | 40% | 2218 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,572 psi | 72% | 2490 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 42,134 psi | 65% | 2448 fps | 95% |
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 111 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 200gr | Reichenberg Subsonic. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,779 fps; across all powders the maximum-charge window runs from 1,578 fps to 2,779 fps. Accurate 3100 gives the best case fill at 100 %, and 111 of the 111 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 200.0 gr projectile in 0.308" calls for a 1:13.0 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. ReloadSwiss RS 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .300 Rem. SA Ultra Mag. with the .308 | 200gr | Reichenberg Subsonic 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.