Load Specifications
Bullet Manufacturer:Cutting Edge
Bullet Weight:180 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:1:11.0
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 180gr | CutEdge Maximus bullet and 105 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% | 57,072 psi | 88% | 2648 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 55,332 psi | 85% | 2674 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 55,347 psi | 85% | 2671 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 57,827 psi | 89% | 2743 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 58,784 psi | 90% | 2730 fps | 97.9% |
| Accurate 4064 | <<locked>> | 94% | 58,798 psi | 90% | 2759 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 55,434 psi | 85% | 2805 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 88% | 56,246 psi | 87% | 2753 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 57,363 psi | 88% | 2753 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 86% | 55,506 psi | 85% | 2707 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 56,347 psi | 87% | 2680 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 57,479 psi | 88% | 2812 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 56,246 psi | 87% | 2874 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 57,174 psi | 88% | 2772 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 56,753 psi | 87% | 2651 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 57,798 psi | 89% | 2795 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 53,447 psi | 82% | 2808 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 98% | 58,465 psi | 90% | 2897 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,695 psi | 58% | 2549 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,047 psi | 65% | 2700 fps | 97.9% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 56,260 psi | 87% | 2772 fps | 99.9% |
| Bofors RP3 | <<locked>> | 94% | 57,928 psi | 89% | 2789 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 58,146 psi | 89% | 2762 fps | 98.1% |
| Hodgdon Benchmark | <<locked>> | 86% | 57,145 psi | 88% | 2687 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 58,305 psi | 90% | 2782 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 56,898 psi | 88% | 2835 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 56,028 psi | 86% | 2694 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 57,159 psi | 88% | 2723 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 55,288 psi | 85% | 2753 fps | 99.6% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 58,711 psi | 90% | 2858 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 96% | 55,840 psi | 86% | 2769 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 88% | 56,797 psi | 87% | 2762 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,458 psi | 76% | 2687 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 56,333 psi | 87% | 2795 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 55,840 psi | 86% | 2844 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,375 psi | 54% | 1647 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 58,291 psi | 90% | 2766 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 56,840 psi | 87% | 2740 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 56,956 psi | 88% | 2736 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 57,029 psi | 88% | 2720 fps | 98.4% |
| IMR 4198 | <<locked>> | 82% | 56,985 psi | 88% | 2608 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 54,578 psi | 84% | 2733 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 96% | 56,608 psi | 87% | 2746 fps | 98.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 52,301 psi | 80% | 2743 fps | 99.6% |
| IMR 4895 | <<locked>> | 90% | 55,782 psi | 86% | 2776 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 55,506 psi | 85% | 2707 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 55,317 psi | 85% | 2687 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 55,999 psi | 86% | 2730 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 55,840 psi | 86% | 2680 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 56,478 psi | 87% | 2730 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 55,666 psi | 86% | 2736 fps | 99.1% |
| Lovex S070ᴾ | <<locked>> | 100% | 56,376 psi | 87% | 2766 fps | 98.5% |
| Norma 201 | <<locked>> | 90% | 58,537 psi | 90% | 2746 fps | 100% |
| Norma 202 | <<locked>> | 88% | 55,550 psi | 85% | 2700 fps | 100% |
| Norma 203B | <<locked>> | 92% | 56,942 psi | 88% | 2782 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 55,274 psi | 85% | 2782 fps | 96.4% |
| Norma URPᴾ | <<locked>> | 100% | 54,317 psi | 84% | 2789 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 92% | 57,928 psi | 89% | 2812 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 53,142 psi | 82% | 2785 fps | 98.7% |
| Ramshot TAC | <<locked>> | 86% | 55,825 psi | 86% | 2730 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 86% | 55,361 psi | 85% | 2746 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 56,376 psi | 87% | 2710 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,621 psi | 55% | 1683 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 58,610 psi | 90% | 2733 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 55,811 psi | 86% | 2740 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 58,798 psi | 90% | 2864 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 58,262 psi | 90% | 2897 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 54,955 psi | 85% | 2825 fps | 99.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 54,868 psi | 84% | 2854 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 86% | 55,709 psi | 86% | 2677 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 58,726 psi | 90% | 2740 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 57,450 psi | 88% | 2776 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 58,146 psi | 89% | 2762 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 98% | 55,666 psi | 86% | 2736 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 88% | 55,999 psi | 86% | 2730 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 56,478 psi | 87% | 2730 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 56,376 psi | 87% | 2766 fps | 98.5% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 58,305 psi | 90% | 2710 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 56,086 psi | 86% | 2795 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 57,943 psi | 89% | 2674 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 57,725 psi | 89% | 2756 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 58,465 psi | 90% | 2779 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 56,782 psi | 87% | 2641 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 56,710 psi | 87% | 2635 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 56,028 psi | 86% | 2690 fps | 98.2% |
| Somchem S321 | <<locked>> | 84% | 56,608 psi | 87% | 2740 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,767 psi | 86% | 2635 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 57,479 psi | 88% | 2749 fps | 100% |
| Somchem S355 | <<locked>> | 96% | 57,798 psi | 89% | 2772 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,588 psi | 75% | 2740 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 56,463 psi | 87% | 2602 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 57,043 psi | 88% | 2625 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 55,230 psi | 85% | 2661 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 56,028 psi | 86% | 2677 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 55,840 psi | 86% | 2707 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 57,334 psi | 88% | 2792 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 86% | 55,883 psi | 86% | 2707 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 57,798 psi | 89% | 2723 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 55,999 psi | 86% | 2792 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,002 psi | 63% | 2621 fps | 98.6% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 57,957 psi | 89% | 2772 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 55,811 psi | 86% | 2753 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 58,711 psi | 90% | 2858 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,475 psi | 51% | 2543 fps | 98.4% |
| Winchester StaBALL Match | <<locked>> | 90% | 58,349 psi | 90% | 2785 fps | 100% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 47,369 psi | 73% | 2516 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 51,750 psi | 80% | 2628 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,552 psi | 61% | 2441 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,876 psi | 72% | 2592 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 45,136 psi | 69% | 2520 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 37,420 psi | 58% | 2434 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 33,721 psi | 52% | 2421 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 80% | 43,627 psi | 67% | 2552 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 80% | 37,231 psi | 57% | 2411 fps | 97.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,774 psi | 70% | 2559 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 45,977 psi | 71% | 2543 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 53,679 psi | 83% | 2756 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,595 psi | 61% | 2582 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,695 psi | 56% | 2431 fps | 98.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 53,330 psi | 82% | 2605 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,334 psi | 61% | 2490 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 84% | 32,329 psi | 50% | 2388 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 31,531 psi | 49% | 2398 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 29,385 psi | 45% | 2339 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 94% | 33,997 psi | 52% | 2513 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,844 psi | 66% | 2556 fps | 98.4% |
| Bofors RP3 | <<locked>> | 80% | 35,969 psi | 55% | 2431 fps | 98.7% |
| Bofors RP7 | <<locked>> | 90% | 45,020 psi | 69% | 2556 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,572 psi | 73% | 2549 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,382 psi | 68% | 2579 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,371 psi | 76% | 2723 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 80% | 52,649 psi | 81% | 2648 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 53,519 psi | 82% | 2674 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,956 psi | 57% | 2434 fps | 96.3% |
| Hodgdon H414 | <<locked>> | 90% | 41,756 psi | 64% | 2582 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 92% | 48,907 psi | 75% | 2661 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 44,034 psi | 68% | 2562 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 27,514 psi | 42% | 2234 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,118 psi | 62% | 2536 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 92% | 44,744 psi | 69% | 2657 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,281 psi | 40% | 1470 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,467 psi | 65% | 2520 fps | 99.4% |
| IMR 3031 | <<locked>> | 80% | 43,830 psi | 67% | 2556 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,044 psi | 60% | 2441 fps | 98.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 41,582 psi | 64% | 2464 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 53,534 psi | 82% | 2566 fps | 100% |
| IMR 4350 | <<locked>> | 94% | 45,252 psi | 70% | 2585 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 41,553 psi | 64% | 2490 fps | 95% |
| IMR 4831 | <<locked>> | 86% | 32,677 psi | 50% | 2382 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 40,292 psi | 62% | 2520 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 45,774 psi | 70% | 2559 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 51,735 psi | 80% | 2641 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,525 psi | 65% | 2530 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,932 psi | 68% | 2493 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 38,798 psi | 60% | 2444 fps | 99.3% |
| Lovex S065 | <<locked>> | 86% | 38,305 psi | 59% | 2438 fps | 95.7% |
| Lovex S070 | <<locked>> | 90% | 41,118 psi | 63% | 2513 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 42,583 psi | 66% | 2503 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 43,120 psi | 66% | 2516 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,682 psi | 60% | 2477 fps | 98.5% |
| Norma 204 | <<locked>> | 98% | 51,938 psi | 80% | 2733 fps | 95.7% |
| Norma URP | <<locked>> | 86% | 34,200 psi | 53% | 2425 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 38,218 psi | 59% | 2490 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 38,319 psi | 59% | 2520 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 45,600 psi | 70% | 2566 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,208 psi | 70% | 2589 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,356 psi | 76% | 2608 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,571 psi | 41% | 1506 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 51,329 psi | 79% | 2635 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 40,176 psi | 62% | 2474 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,350 psi | 64% | 2589 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,605 psi | 52% | 2461 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 33,504 psi | 52% | 2438 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 36,245 psi | 56% | 2500 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 46,412 psi | 71% | 2539 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,611 psi | 62% | 2461 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 33,837 psi | 52% | 2375 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 90% | 45,020 psi | 69% | 2556 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,305 psi | 59% | 2438 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,525 psi | 65% | 2530 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,798 psi | 60% | 2444 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 90% | 41,118 psi | 63% | 2513 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 54,259 psi | 83% | 2657 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,969 psi | 54% | 2425 fps | 97.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 54,404 psi | 84% | 2631 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,874 psi | 67% | 2543 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,148 psi | 65% | 2523 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,179 psi | 68% | 2461 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,651 psi | 56% | 2336 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 43,062 psi | 66% | 2487 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 49,414 psi | 76% | 2635 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,671 psi | 67% | 2461 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,584 psi | 67% | 2539 fps | 99.2% |
| Somchem S355 | <<locked>> | 80% | 34,795 psi | 54% | 2382 fps | 97.9% |
| Somchem S365 | <<locked>> | 80% | 25,092 psi | 39% | 2218 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 49,980 psi | 77% | 2516 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,556 psi | 69% | 2454 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,059 psi | 62% | 2441 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,712 psi | 63% | 2451 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,069 psi | 51% | 2323 fps | 98.6% |
| Vihtavuori N160 | <<locked>> | 84% | 33,547 psi | 52% | 2375 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 45,818 psi | 70% | 2556 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 39,117 psi | 60% | 2441 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 32,996 psi | 51% | 2379 fps | 95% |
| Vihtavuori N555 | <<locked>> | 92% | 31,401 psi | 48% | 2411 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,298 psi | 45% | 2251 fps | 96% |
| Winchester 748 | <<locked>> | 80% | 45,556 psi | 70% | 2602 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 42,003 psi | 65% | 2589 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 96% | 29,515 psi | 45% | 2418 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,568 psi | 64% | 2526 fps | 99.3% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 105 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 180gr | CutEdge Maximus. Alliant Reloder-17 delivers the highest muzzle velocity at 2,897 fps; across all powders the maximum-charge window runs from 1,647 fps to 2,897 fps. Accurate 4350 gives the best case fill at 100 %, and 105 of the 105 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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.