
Load Specifications
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 175gr | Berger LRBT Target bullet and 104 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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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>> | 86% | 58,740 psi | 90% | 2710 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 57,290 psi | 88% | 2740 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 57,667 psi | 89% | 2736 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,796 psi | 86% | 2759 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 56,550 psi | 87% | 2743 fps | 97.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 41,002 psi | 63% | 2589 fps | 96.1% |
| Accurate 4064 | <<locked>> | 92% | 57,392 psi | 88% | 2782 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 57,493 psi | 88% | 2874 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 88% | 57,754 psi | 89% | 2815 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 55,347 psi | 85% | 2769 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,695 psi | 87% | 2766 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 57,943 psi | 89% | 2740 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 57,711 psi | 89% | 2940 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 55,303 psi | 85% | 2789 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 58,218 psi | 90% | 2710 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,883 psi | 86% | 2812 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,781 psi | 84% | 2871 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 96% | 56,202 psi | 86% | 2913 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,291 psi | 60% | 2618 fps | 98.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,714 psi | 67% | 2772 fps | 98.2% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 57,769 psi | 89% | 2835 fps | 99.9% |
| Bofors RP3 | <<locked>> | 92% | 56,028 psi | 86% | 2805 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 55,985 psi | 86% | 2776 fps | 97.6% |
| Hodgdon Benchmark | <<locked>> | 86% | 58,624 psi | 90% | 2749 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 56,318 psi | 87% | 2802 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 58,610 psi | 90% | 2904 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 57,522 psi | 88% | 2756 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 58,682 psi | 90% | 2785 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 57,014 psi | 88% | 2818 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 98% | 56,492 psi | 87% | 2871 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 96% | 57,145 psi | 88% | 2831 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 88% | 58,334 psi | 90% | 2825 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,952 psi | 78% | 2749 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 57,957 psi | 89% | 2861 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 57,334 psi | 88% | 2910 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,462 psi | 55% | 1680 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 56,246 psi | 87% | 2782 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 58,668 psi | 90% | 2805 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 58,305 psi | 90% | 2799 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 58,247 psi | 90% | 2782 fps | 98.4% |
| IMR 4198 | <<locked>> | 82% | 57,986 psi | 89% | 2667 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 56,101 psi | 86% | 2799 fps | 97.7% |
| IMR 4451 Enduron | <<locked>> | 96% | 57,943 psi | 89% | 2805 fps | 98.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,157 psi | 83% | 2812 fps | 99.7% |
| IMR 4895 | <<locked>> | 90% | 57,319 psi | 88% | 2838 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 56,695 psi | 87% | 2766 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 57,145 psi | 88% | 2753 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 57,754 psi | 89% | 2792 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 57,261 psi | 88% | 2743 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 58,073 psi | 89% | 2792 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 57,232 psi | 88% | 2799 fps | 99.2% |
| Lovex S070ᴾ | <<locked>> | 100% | 58,189 psi | 90% | 2835 fps | 98.7% |
| Norma 201 | <<locked>> | 88% | 56,536 psi | 87% | 2762 fps | 100% |
| Norma 202 | <<locked>> | 88% | 57,159 psi | 88% | 2762 fps | 100% |
| Norma 203B | <<locked>> | 92% | 58,682 psi | 90% | 2848 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 57,043 psi | 88% | 2851 fps | 96.7% |
| Norma URPᴾ | <<locked>> | 100% | 56,101 psi | 86% | 2858 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 90% | 55,695 psi | 86% | 2822 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 54,940 psi | 85% | 2854 fps | 98.8% |
| Ramshot TAC | <<locked>> | 86% | 57,058 psi | 88% | 2789 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 86% | 56,695 psi | 87% | 2805 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 57,711 psi | 89% | 2772 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,969 psi | 55% | 1719 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 56,217 psi | 86% | 2746 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 57,276 psi | 88% | 2802 fps | 98.8% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 56,362 psi | 87% | 2874 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 55,825 psi | 86% | 2907 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 56,927 psi | 88% | 2894 fps | 99.8% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 56,521 psi | 87% | 2923 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 86% | 57,566 psi | 89% | 2743 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 57,043 psi | 88% | 2759 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 55,854 psi | 86% | 2795 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 55,985 psi | 86% | 2776 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 98% | 57,232 psi | 88% | 2799 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 88% | 57,754 psi | 89% | 2792 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 58,073 psi | 89% | 2792 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 58,189 psi | 90% | 2835 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 57,537 psi | 89% | 2858 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,724 psi | 86% | 2772 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 56,144 psi | 86% | 2789 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 58,175 psi | 89% | 2700 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 58,407 psi | 90% | 2697 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 57,798 psi | 89% | 2756 fps | 98.3% |
| Somchem S321 | <<locked>> | 84% | 58,102 psi | 89% | 2799 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 57,421 psi | 88% | 2697 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 55,085 psi | 85% | 2759 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 56,130 psi | 86% | 2795 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,401 psi | 78% | 2805 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 47,036 psi | 72% | 2690 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 84% | 57,653 psi | 89% | 2657 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 58,349 psi | 90% | 2680 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,768 psi | 87% | 2723 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 57,522 psi | 88% | 2740 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 57,754 psi | 89% | 2772 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 55,274 psi | 85% | 2805 fps | 99.7% |
| Vihtavuori N530 | <<locked>> | 86% | 57,406 psi | 88% | 2769 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 55,811 psi | 86% | 2740 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 57,914 psi | 89% | 2861 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,931 psi | 66% | 2694 fps | 98.8% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 55,463 psi | 85% | 2782 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 57,319 psi | 88% | 2815 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 56,768 psi | 87% | 2874 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,070 psi | 54% | 2618 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 88% | 56,260 psi | 87% | 2799 fps | 100% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 48,936 psi | 75% | 2579 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 53,417 psi | 82% | 2690 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,524 psi | 64% | 2507 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,718 psi | 75% | 2657 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 46,543 psi | 72% | 2582 fps | 95.4% |
| Accurate 3100 | <<locked>> | 98% | 38,218 psi | 59% | 2533 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 39,262 psi | 60% | 2503 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 32,924 psi | 51% | 2434 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 45,121 psi | 69% | 2615 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 80% | 38,377 psi | 59% | 2470 fps | 97.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,181 psi | 73% | 2621 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 47,500 psi | 73% | 2605 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 41,017 psi | 63% | 2648 fps | 98.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,985 psi | 58% | 2493 fps | 98.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 54,868 psi | 84% | 2667 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,828 psi | 63% | 2556 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 84% | 33,344 psi | 51% | 2448 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,779 psi | 50% | 2461 fps | 97.1% |
| Alliant Reloder-23 | <<locked>> | 90% | 28,979 psi | 45% | 2356 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 94% | 35,505 psi | 55% | 2585 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,266 psi | 68% | 2618 fps | 98.5% |
| Bofors RP3 | <<locked>> | 80% | 37,666 psi | 58% | 2497 fps | 98.9% |
| Bofors RP7 | <<locked>> | 88% | 43,845 psi | 67% | 2572 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,718 psi | 75% | 2605 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,064 psi | 71% | 2644 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,923 psi | 78% | 2789 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 80% | 53,838 psi | 83% | 2707 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 54,795 psi | 84% | 2733 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 38,464 psi | 59% | 2497 fps | 96.6% |
| Hodgdon H414 | <<locked>> | 90% | 43,308 psi | 67% | 2648 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 90% | 47,253 psi | 73% | 2671 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 45,556 psi | 70% | 2628 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 28,863 psi | 44% | 2300 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,481 psi | 64% | 2598 fps | 99.5% |
| Hodgdon Superformance | <<locked>> | 92% | 46,151 psi | 71% | 2723 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,411 psi | 41% | 1499 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,598 psi | 67% | 2579 fps | 99.4% |
| IMR 3031 | <<locked>> | 80% | 45,324 psi | 70% | 2618 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,292 psi | 62% | 2503 fps | 98.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 42,612 psi | 66% | 2520 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 54,897 psi | 84% | 2628 fps | 100% |
| IMR 4350 | <<locked>> | 92% | 43,830 psi | 67% | 2595 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 86% | 42,670 psi | 66% | 2549 fps | 95.2% |
| IMR 4831 | <<locked>> | 84% | 32,039 psi | 49% | 2395 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 41,829 psi | 64% | 2585 fps | 99% |
| IMR 8208 XBR | <<locked>> | 80% | 47,181 psi | 73% | 2621 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 53,330 psi | 82% | 2700 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 44,208 psi | 68% | 2595 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,107 psi | 69% | 2552 fps | 99.4% |
| Lovex S062 | <<locked>> | 80% | 40,234 psi | 62% | 2507 fps | 99.4% |
| Lovex S065 | <<locked>> | 84% | 37,449 psi | 58% | 2451 fps | 95.2% |
| Lovex S070 | <<locked>> | 90% | 42,612 psi | 66% | 2579 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 44,063 psi | 68% | 2569 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 44,498 psi | 68% | 2575 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,205 psi | 62% | 2543 fps | 98.7% |
| Norma 204 | <<locked>> | 96% | 49,690 psi | 76% | 2736 fps | 95% |
| Norma URP | <<locked>> | 84% | 33,431 psi | 51% | 2438 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 39,740 psi | 61% | 2556 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 90% | 39,740 psi | 61% | 2585 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 47,036 psi | 72% | 2631 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,499 psi | 72% | 2648 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,836 psi | 78% | 2671 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,745 psi | 41% | 1535 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,750 psi | 81% | 2697 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,452 psi | 64% | 2533 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,873 psi | 66% | 2654 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,882 psi | 54% | 2526 fps | 99.6% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 35,157 psi | 54% | 2507 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 37,637 psi | 58% | 2569 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 48,196 psi | 74% | 2605 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,119 psi | 65% | 2523 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 35,520 psi | 55% | 2444 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 88% | 43,845 psi | 67% | 2572 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 84% | 37,449 psi | 58% | 2451 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,208 psi | 68% | 2595 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,234 psi | 62% | 2507 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 90% | 42,612 psi | 66% | 2579 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,260 psi | 56% | 2490 fps | 97.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,281 psi | 70% | 2602 fps | 98.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,482 psi | 67% | 2585 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,542 psi | 70% | 2520 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,898 psi | 58% | 2395 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 41,640 psi | 64% | 2497 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 51,010 psi | 78% | 2700 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,005 psi | 69% | 2520 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,078 psi | 69% | 2602 fps | 99.3% |
| Somchem S355 | <<locked>> | 80% | 36,172 psi | 56% | 2448 fps | 98.1% |
| Somchem S365 | <<locked>> | 80% | 26,324 psi | 40% | 2283 fps | 95.7% |
| Somchem S385 | <<locked>> | 98% | 44,019 psi | 68% | 2635 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 51,314 psi | 79% | 2575 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,861 psi | 71% | 2513 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,597 psi | 64% | 2503 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,235 psi | 65% | 2513 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,577 psi | 53% | 2388 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 82% | 32,808 psi | 50% | 2392 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 47,239 psi | 73% | 2618 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 40,538 psi | 62% | 2503 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 34,316 psi | 53% | 2441 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 90% | 30,995 psi | 48% | 2431 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,545 psi | 47% | 2313 fps | 96.4% |
| Winchester 748 | <<locked>> | 80% | 46,963 psi | 72% | 2664 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 43,526 psi | 67% | 2654 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 94% | 28,950 psi | 45% | 2428 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,134 psi | 66% | 2592 fps | 99.4% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 104 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 175gr | Berger LRBT Target. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,940 fps; across all powders the maximum-charge window runs from 1,680 fps to 2,940 fps. Accurate 3100 gives the best case fill at 100 %, and 104 of the 104 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 175.0 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.