
Load Specifications
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 190gr | Hornady BTSP bullet and 106 powders. The key underlying parameters are shown in the table above.
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.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 57,885 psi | 89% | 2582 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 57,087 psi | 88% | 2612 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 58,566 psi | 90% | 2674 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,535 psi | 85% | 2625 fps | 98.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,729 psi | 67% | 2539 fps | 97.7% |
| Accurate 4064 | <<locked>> | 90% | 56,971 psi | 88% | 2661 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,159 psi | 88% | 2756 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 56,927 psi | 88% | 2690 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 58,117 psi | 89% | 2694 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 51,459 psi | 79% | 2680 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,753 psi | 86% | 2641 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,043 psi | 88% | 2608 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,014 psi | 88% | 2815 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 51,082 psi | 79% | 2677 fps | 96.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 58,421 psi | 90% | 2713 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,288 psi | 85% | 2690 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 57,885 psi | 89% | 2805 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,579 psi | 86% | 2789 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,386 psi | 78% | 2671 fps | 96.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,698 psi | 64% | 2569 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,666 psi | 56% | 2474 fps | 96.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,630 psi | 72% | 2730 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,985 psi | 88% | 2713 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 55,303 psi | 85% | 2680 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 58,668 psi | 90% | 2707 fps | 98.7% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,464 psi | 88% | 2621 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,550 psi | 85% | 2674 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 57,566 psi | 89% | 2769 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,173 psi | 86% | 2697 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 96% | 56,115 psi | 86% | 2756 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 94% | 56,449 psi | 87% | 2713 fps | 97.9% |
| Hodgdon H4895 | <<locked>> | 86% | 57,551 psi | 89% | 2700 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,157 psi | 83% | 2680 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,334 psi | 88% | 2736 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,478 psi | 87% | 2792 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,911 psi | 55% | 1614 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 58,726 psi | 90% | 2700 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 57,870 psi | 89% | 2677 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,464 psi | 88% | 2674 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,261 psi | 88% | 2661 fps | 98.9% |
| IMR 4350 | <<locked>> | 98% | 55,492 psi | 85% | 2684 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,246 psi | 88% | 2690 fps | 98.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 57,174 psi | 88% | 2740 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 56,681 psi | 87% | 2717 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,753 psi | 86% | 2641 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,188 psi | 88% | 2667 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,434 psi | 87% | 2621 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,363 psi | 88% | 2667 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,753 psi | 87% | 2684 fps | 99.6% |
| Lovex S070 | <<locked>> | 98% | 57,537 psi | 89% | 2717 fps | 99.1% |
| Norma 201 | <<locked>> | 86% | 55,651 psi | 86% | 2635 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,333 psi | 87% | 2635 fps | 100% |
| Norma 203B | <<locked>> | 90% | 58,088 psi | 89% | 2723 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,202 psi | 86% | 2736 fps | 97.4% |
| Norma MRPᴾ | <<locked>> | 100% | 46,572 psi | 72% | 2687 fps | 97.3% |
| Norma URP | <<locked>> | 98% | 55,709 psi | 86% | 2740 fps | 100% |
| Ramshot Big Game | <<locked>> | 90% | 58,798 psi | 90% | 2749 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 58,102 psi | 89% | 2789 fps | 99.6% |
| Ramshot TAC | <<locked>> | 84% | 56,043 psi | 86% | 2667 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,796 psi | 86% | 2680 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,565 psi | 87% | 2644 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,260 psi | 56% | 1650 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 58,813 psi | 90% | 2664 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,449 psi | 87% | 2684 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,999 psi | 86% | 2753 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,361 psi | 85% | 2782 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,594 psi | 87% | 2776 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,869 psi | 86% | 2805 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 84% | 56,724 psi | 87% | 2615 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,130 psi | 86% | 2635 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,448 psi | 85% | 2677 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 53,258 psi | 82% | 2657 fps | 95.8% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,240 psi | 76% | 2654 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 96% | 58,668 psi | 90% | 2707 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,753 psi | 87% | 2684 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,188 psi | 88% | 2667 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,363 psi | 88% | 2667 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 57,537 psi | 89% | 2717 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,000 psi | 88% | 2733 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 58,465 psi | 90% | 2697 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,492 psi | 85% | 2667 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,159 psi | 88% | 2572 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,406 psi | 88% | 2572 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,855 psi | 87% | 2638 fps | 98.8% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 48,776 psi | 75% | 2651 fps | 96.4% |
| Somchem S321 | <<locked>> | 82% | 57,058 psi | 88% | 2671 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,434 psi | 87% | 2572 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 58,102 psi | 89% | 2687 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,637 psi | 86% | 2674 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,867 psi | 83% | 2740 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,067 psi | 77% | 2638 fps | 97.4% |
| Vihtavuori N130 | <<locked>> | 82% | 56,869 psi | 87% | 2533 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,464 psi | 88% | 2556 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,260 psi | 87% | 2598 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,739 psi | 87% | 2615 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,898 psi | 88% | 2648 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 58,537 psi | 90% | 2736 fps | 100% |
| Vihtavuori N530 | <<locked>> | 84% | 56,434 psi | 87% | 2641 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 58,479 psi | 90% | 2657 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 57,305 psi | 88% | 2743 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,079 psi | 71% | 2641 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 58,450 psi | 90% | 2710 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,724 psi | 87% | 2690 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,115 psi | 86% | 2756 fps | 98.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,173 psi | 57% | 2589 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,463 psi | 85% | 2674 fps | 100% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 51,343 psi | 79% | 2500 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,106 psi | 68% | 2438 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,387 psi | 79% | 2582 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 42,801 psi | 66% | 2418 fps | 95.4% |
| Accurate 3100 | <<locked>> | 94% | 35,679 psi | 55% | 2385 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 41,713 psi | 64% | 2441 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,748 psi | 47% | 2283 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 47,282 psi | 73% | 2546 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 40,161 psi | 62% | 2408 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 96% | 45,353 psi | 70% | 2575 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,356 psi | 76% | 2549 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,285 psi | 77% | 2526 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,323 psi | 67% | 2592 fps | 99.3% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 45,150 psi | 69% | 2575 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,001 psi | 62% | 2431 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,931 psi | 66% | 2493 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,183 psi | 48% | 2300 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,650 psi | 53% | 2415 fps | 98.6% |
| Alliant Reloder-19 | <<locked>> | 96% | 44,556 psi | 69% | 2569 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 86% | 27,064 psi | 42% | 2218 fps | 95.3% |
| Alliant Reloder-25 | <<locked>> | 98% | 34,447 psi | 53% | 2418 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 90% | 32,895 psi | 51% | 2431 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,659 psi | 72% | 2556 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 39,856 psi | 61% | 2438 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 40,509 psi | 62% | 2411 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,952 psi | 78% | 2533 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,588 psi | 75% | 2575 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,635 psi | 83% | 2717 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,509 psi | 62% | 2441 fps | 97.9% |
| Hodgdon H414 | <<locked>> | 86% | 40,190 psi | 62% | 2487 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 86% | 43,932 psi | 68% | 2510 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 47,732 psi | 73% | 2556 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,645 psi | 44% | 2208 fps | 96.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,888 psi | 68% | 2536 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 42,525 psi | 65% | 2559 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,701 psi | 41% | 1437 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,890 psi | 71% | 2513 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 47,688 psi | 73% | 2543 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,177 psi | 65% | 2438 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,715 psi | 69% | 2464 fps | 96.8% |
| IMR 4350 | <<locked>> | 88% | 40,770 psi | 63% | 2441 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,610 psi | 61% | 2395 fps | 95.3% |
| IMR 4831 | <<locked>> | 80% | 29,950 psi | 46% | 2251 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 43,990 psi | 68% | 2520 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 49,356 psi | 76% | 2549 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,688 psi | 72% | 2523 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,920 psi | 72% | 2480 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 42,221 psi | 65% | 2441 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 34,795 psi | 54% | 2300 fps | 95.4% |
| Lovex S070 | <<locked>> | 84% | 37,362 psi | 57% | 2375 fps | 95% |
| Norma 201 | <<locked>> | 80% | 46,383 psi | 71% | 2500 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,615 psi | 72% | 2500 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,293 psi | 65% | 2480 fps | 99.5% |
| Norma 204 | <<locked>> | 92% | 46,079 psi | 71% | 2575 fps | 95.2% |
| Norma MRP | <<locked>> | 96% | 40,640 psi | 63% | 2572 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 31,183 psi | 48% | 2287 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 42,047 psi | 65% | 2497 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 36,956 psi | 57% | 2428 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 49,269 psi | 76% | 2566 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,921 psi | 75% | 2582 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,200 psi | 82% | 2598 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,079 psi | 42% | 1473 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 55,172 psi | 85% | 2618 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,901 psi | 63% | 2428 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,469 psi | 70% | 2592 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,854 psi | 57% | 2474 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 32,706 psi | 50% | 2356 fps | 95.9% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 34,896 psi | 54% | 2411 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 50,502 psi | 78% | 2530 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,063 psi | 68% | 2454 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 37,565 psi | 58% | 2388 fps | 99.2% |
| Rottweil R 904 | <<locked>> | 98% | 49,835 psi | 77% | 2605 fps | 95% |
| Rottweil R 905 | <<locked>> | 98% | 46,021 psi | 71% | 2602 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 84% | 40,509 psi | 62% | 2411 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,795 psi | 54% | 2300 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,688 psi | 72% | 2523 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,221 psi | 65% | 2441 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 37,362 psi | 57% | 2375 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,392 psi | 59% | 2434 fps | 98.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,645 psi | 73% | 2539 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,658 psi | 70% | 2520 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,659 psi | 73% | 2448 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,856 psi | 61% | 2326 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 38,740 psi | 60% | 2346 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 45,600 psi | 70% | 2595 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 53,577 psi | 82% | 2625 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 47,195 psi | 73% | 2448 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,514 psi | 73% | 2536 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 38,276 psi | 59% | 2392 fps | 99.2% |
| Somchem S365 | <<locked>> | 80% | 27,862 psi | 43% | 2244 fps | 97.7% |
| Somchem S385 | <<locked>> | 94% | 41,060 psi | 63% | 2484 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 53,621 psi | 82% | 2493 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,066 psi | 74% | 2434 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,947 psi | 68% | 2431 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,280 psi | 68% | 2441 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,405 psi | 56% | 2329 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 32,489 psi | 50% | 2290 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 80% | 49,501 psi | 76% | 2546 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,598 psi | 66% | 2434 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 31,923 psi | 49% | 2290 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 86% | 29,066 psi | 45% | 2287 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,184 psi | 50% | 2267 fps | 98% |
| Winchester 748 | <<locked>> | 80% | 49,516 psi | 76% | 2592 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 37,855 psi | 58% | 2438 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,079 psi | 42% | 2290 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,469 psi | 70% | 2526 fps | 99.9% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 106 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 190gr | Hornady BTSP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,815 fps; across all powders the maximum-charge window runs from 1,614 fps to 2,815 fps. Accurate 3100 gives the best case fill at 100 %, and 106 of the 106 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 190.0 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.