Load Specifications
Bullet Manufacturer:MAKER
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:1:12.0
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 200gr | MAKER 200 Grain .308 Expanding Subsonic Blackout Bullets bullet and 108 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, 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>> | 84% | 57,450 psi | 88% | 2507 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,144 psi | 86% | 2533 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 58,189 psi | 90% | 2598 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,405 psi | 85% | 2556 fps | 98.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,337 psi | 67% | 2470 fps | 98% |
| Accurate 4064 | <<locked>> | 90% | 56,217 psi | 86% | 2579 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 56,536 psi | 87% | 2677 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 56,884 psi | 88% | 2618 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 58,030 psi | 89% | 2621 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 51,430 psi | 79% | 2615 fps | 97% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,680 psi | 86% | 2569 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,174 psi | 88% | 2536 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,869 psi | 87% | 2740 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 51,082 psi | 79% | 2612 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,943 psi | 89% | 2635 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 58,769 psi | 90% | 2664 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 57,870 psi | 89% | 2733 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,593 psi | 86% | 2713 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,328 psi | 77% | 2605 fps | 97% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,176 psi | 63% | 2497 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,318 psi | 56% | 2411 fps | 96.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,456 psi | 71% | 2661 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,695 psi | 87% | 2638 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 54,984 psi | 85% | 2608 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 58,668 psi | 90% | 2638 fps | 99% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,348 psi | 88% | 2549 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,274 psi | 85% | 2598 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 57,493 psi | 88% | 2694 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 55,999 psi | 86% | 2625 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 96% | 55,738 psi | 86% | 2680 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 94% | 56,304 psi | 87% | 2644 fps | 98.3% |
| Hodgdon H4895 | <<locked>> | 86% | 57,493 psi | 88% | 2628 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,070 psi | 83% | 2612 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,334 psi | 88% | 2661 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,478 psi | 87% | 2723 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,679 psi | 55% | 1562 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,114 psi | 85% | 2582 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 57,725 psi | 89% | 2598 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,232 psi | 88% | 2602 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,145 psi | 88% | 2592 fps | 99.2% |
| IMR 4350 | <<locked>> | 98% | 55,390 psi | 85% | 2615 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,985 psi | 88% | 2618 fps | 99.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 57,116 psi | 88% | 2671 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 56,434 psi | 87% | 2641 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,680 psi | 86% | 2569 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,797 psi | 87% | 2592 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,086 psi | 86% | 2546 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,290 psi | 88% | 2595 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,318 psi | 87% | 2608 fps | 99.7% |
| Lovex S070 | <<locked>> | 98% | 57,276 psi | 88% | 2644 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 35,882 psi | 55% | 2333 fps | 96% |
| Norma 201 | <<locked>> | 86% | 55,361 psi | 85% | 2562 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,202 psi | 86% | 2562 fps | 100% |
| Norma 203B | <<locked>> | 90% | 57,928 psi | 89% | 2651 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,318 psi | 87% | 2667 fps | 97.8% |
| Norma MRPᴾ | <<locked>> | 100% | 46,311 psi | 71% | 2618 fps | 97.7% |
| Norma URP | <<locked>> | 98% | 55,564 psi | 85% | 2667 fps | 100% |
| Ramshot Big Game | <<locked>> | 90% | 58,668 psi | 90% | 2677 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 58,291 psi | 90% | 2723 fps | 99.8% |
| Ramshot TAC | <<locked>> | 84% | 55,941 psi | 86% | 2595 fps | 99.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,637 psi | 86% | 2608 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,318 psi | 87% | 2569 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,245 psi | 56% | 1601 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 58,711 psi | 90% | 2589 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,086 psi | 86% | 2608 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,854 psi | 86% | 2677 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,303 psi | 85% | 2710 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,391 psi | 87% | 2703 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,767 psi | 86% | 2733 fps | 100% |
| Rottweil R 901 | <<locked>> | 84% | 56,086 psi | 86% | 2536 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,869 psi | 86% | 2559 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 58,769 psi | 90% | 2648 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 53,214 psi | 82% | 2589 fps | 96.2% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,124 psi | 76% | 2589 fps | 97% |
| Rottweil R 907 | <<locked>> | 96% | 58,668 psi | 90% | 2638 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,318 psi | 87% | 2608 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,797 psi | 87% | 2592 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,290 psi | 88% | 2595 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 57,276 psi | 88% | 2644 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,826 psi | 87% | 2657 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 58,349 psi | 90% | 2628 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,274 psi | 85% | 2595 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,956 psi | 88% | 2500 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,174 psi | 88% | 2500 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,550 psi | 87% | 2569 fps | 99.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 48,646 psi | 75% | 2582 fps | 96.8% |
| Somchem S321 | <<locked>> | 82% | 57,101 psi | 88% | 2598 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,173 psi | 86% | 2497 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 57,812 psi | 89% | 2612 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,361 psi | 85% | 2598 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,896 psi | 83% | 2667 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 49,617 psi | 76% | 2569 fps | 97.8% |
| Vihtavuori N130 | <<locked>> | 82% | 56,463 psi | 87% | 2457 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,290 psi | 88% | 2484 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,014 psi | 86% | 2523 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,797 psi | 87% | 2543 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,840 psi | 87% | 2575 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 58,160 psi | 89% | 2661 fps | 100% |
| Vihtavuori N530 | <<locked>> | 84% | 56,057 psi | 86% | 2566 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 58,392 psi | 90% | 2585 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 57,203 psi | 88% | 2671 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,774 psi | 70% | 2569 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 58,436 psi | 90% | 2641 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,565 psi | 87% | 2615 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,072 psi | 86% | 2684 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,927 psi | 57% | 2523 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,013 psi | 85% | 2598 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 46,644 psi | 72% | 2507 fps | 95.9% |
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% | 50,720 psi | 78% | 2421 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,091 psi | 66% | 2362 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,807 psi | 78% | 2507 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 42,467 psi | 65% | 2352 fps | 95.8% |
| Accurate 3100 | <<locked>> | 94% | 35,201 psi | 54% | 2320 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 40,799 psi | 63% | 2362 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,081 psi | 46% | 2215 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 46,876 psi | 72% | 2474 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 39,958 psi | 61% | 2343 fps | 99% |
| ADI AR 2209 | <<locked>> | 96% | 45,107 psi | 69% | 2510 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,052 psi | 75% | 2474 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 49,864 psi | 77% | 2451 fps | 100% |
| Alliant Power Pro 2000-MR | 48.8 gr | 80% | 42,946 psi | 66% | 2520 fps | 99.5% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 44,846 psi | 69% | 2510 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,711 psi | 61% | 2362 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,511 psi | 65% | 2421 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 30,676 psi | 47% | 2231 fps | 96% |
| Alliant Reloder-17 | 48.1 gr | 80% | 34,301 psi | 53% | 2349 fps | 98.9% |
| Alliant Reloder-19 | <<locked>> | 96% | 44,251 psi | 68% | 2503 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 86% | 26,556 psi | 41% | 2152 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 98% | 34,026 psi | 52% | 2352 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 90% | 32,387 psi | 50% | 2362 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,340 psi | 71% | 2487 fps | 99.6% |
| Bofors RP3 | <<locked>> | 80% | 39,233 psi | 60% | 2365 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 40,103 psi | 62% | 2343 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,647 psi | 78% | 2461 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,080 psi | 74% | 2500 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,737 psi | 83% | 2644 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,045 psi | 62% | 2372 fps | 98.2% |
| Hodgdon H414 | <<locked>> | 84% | 37,405 psi | 58% | 2369 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 86% | 43,613 psi | 67% | 2444 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 47,369 psi | 73% | 2484 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,065 psi | 43% | 2139 fps | 96.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,700 psi | 67% | 2467 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 39,276 psi | 60% | 2434 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,469 psi | 41% | 1391 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,585 psi | 70% | 2441 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 47,514 psi | 73% | 2467 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,959 psi | 65% | 2372 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,396 psi | 68% | 2395 fps | 97.2% |
| IMR 4350 | <<locked>> | 88% | 40,408 psi | 62% | 2375 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,320 psi | 60% | 2329 fps | 95.7% |
| IMR 4831 | <<locked>> | 80% | 29,370 psi | 45% | 2182 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 43,584 psi | 67% | 2448 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 80% | 49,052 psi | 75% | 2474 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,224 psi | 71% | 2451 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,804 psi | 72% | 2415 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 41,858 psi | 64% | 2372 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 34,171 psi | 53% | 2231 fps | 95.7% |
| Lovex S070 | <<locked>> | 84% | 36,869 psi | 57% | 2306 fps | 95.4% |
| Lovex S071 | <<locked>> | 98% | 33,533 psi | 52% | 2283 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 45,730 psi | 70% | 2425 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,412 psi | 71% | 2431 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,843 psi | 64% | 2408 fps | 99.6% |
| Norma 204 | <<locked>> | 92% | 45,788 psi | 70% | 2507 fps | 95.6% |
| Norma MRP | <<locked>> | 94% | 37,681 psi | 58% | 2451 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 30,618 psi | 47% | 2221 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 41,640 psi | 64% | 2428 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 84% | 34,200 psi | 53% | 2310 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 48,921 psi | 75% | 2493 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,776 psi | 75% | 2510 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,808 psi | 81% | 2523 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,832 psi | 41% | 1424 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 54,969 psi | 85% | 2543 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,567 psi | 62% | 2359 fps | 96.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,252 psi | 70% | 2520 fps | 99.7% |
| ReloadSwiss RS 60 | 48.1 gr | 80% | 36,579 psi | 56% | 2405 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 29,950 psi | 46% | 2231 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 32,097 psi | 49% | 2287 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 49,647 psi | 76% | 2451 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,642 psi | 67% | 2385 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 36,912 psi | 57% | 2316 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 98% | 49,966 psi | 77% | 2543 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 96% | 42,946 psi | 66% | 2484 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 84% | 40,103 psi | 62% | 2343 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,171 psi | 53% | 2231 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,224 psi | 71% | 2451 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,858 psi | 64% | 2372 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 36,869 psi | 57% | 2306 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,058 psi | 59% | 2365 fps | 99.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,398 psi | 73% | 2474 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,397 psi | 70% | 2448 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,123 psi | 72% | 2372 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,320 psi | 60% | 2254 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 38,116 psi | 59% | 2277 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 42,540 psi | 65% | 2480 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 53,142 psi | 82% | 2549 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,673 psi | 72% | 2372 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,137 psi | 73% | 2467 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 37,695 psi | 58% | 2320 fps | 99.3% |
| Somchem S365 | <<locked>> | 80% | 27,427 psi | 42% | 2178 fps | 98% |
| Somchem S385 | <<locked>> | 94% | 40,582 psi | 62% | 2415 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 53,113 psi | 82% | 2418 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,601 psi | 73% | 2362 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,337 psi | 67% | 2356 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,845 psi | 67% | 2369 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,868 psi | 55% | 2260 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 31,981 psi | 49% | 2224 fps | 96.3% |
| Vihtavuori N530 | <<locked>> | 80% | 49,211 psi | 76% | 2474 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,206 psi | 65% | 2365 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 31,430 psi | 48% | 2221 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 86% | 28,514 psi | 44% | 2218 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,662 psi | 49% | 2201 fps | 98.2% |
| Winchester 748 | <<locked>> | 80% | 49,356 psi | 76% | 2520 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 37,405 psi | 58% | 2369 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 90% | 26,440 psi | 41% | 2224 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,005 psi | 69% | 2454 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 43,439 psi | 67% | 2454 fps | 95.1% |
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 108 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 200gr | MAKER 200 Grain .308 Expanding Subsonic Blackout Bullets. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,740 fps; across all powders the maximum-charge window runs from 1,562 fps to 2,740 fps. Accurate 3100 gives the best case fill at 100 %, and 108 of the 108 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 1:12.0 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. Alliant Power Pro 2000-MR, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .300 Rem. SA Ultra Mag. with the .308 | 200gr | MAKER 200 Grain .308 Expanding Subsonic Blackout Bullets 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.