Load data for .300 Rem. SA Ultra Mag. + .308 | 180gr | CutEdge MTH

.300 Rem. SA Ultra Mag. cartridge drawing
Cutting Edge logo

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 MTH bullet and 106 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"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>86%56,985 psi88%2644 fps100%
Accurate 2460<<locked>>82%55,288 psi85%2674 fps100%
Accurate 2495<<locked>>90%54,969 psi85%2664 fps100%
Accurate 2520<<locked>>86%57,450 psi88%2736 fps100%
Accurate 2700<<locked>>92%58,769 psi90%2730 fps97.9%
Accurate 4064<<locked>>94%58,711 psi90%2759 fps100%
Accurate 4350ᴾ<<locked>>100%55,071 psi85%2799 fps99.8%
ADI AR 2206H<<locked>>88%56,159 psi86%2753 fps100%
ADI AR 2208<<locked>>94%57,348 psi88%2749 fps100%
ADI Benchmark 8208<<locked>>86%55,405 psi85%2707 fps100%
Alliant AR-Comp<<locked>>86%55,927 psi86%2671 fps100%
Alliant Power Pro 1200-R<<locked>>82%57,101 psi88%2805 fps100%
Alliant Power Pro 2000-MR<<locked>>90%55,883 psi86%2867 fps100%
Alliant Reloder- TS 15.5<<locked>>94%57,159 psi88%2769 fps100%
Alliant Reloder-10x<<locked>>82%56,666 psi87%2648 fps100%
Alliant Reloder-15<<locked>>92%57,711 psi89%2792 fps100%
Alliant Reloder-16ᴾ<<locked>>100%53,084 psi82%2805 fps99.8%
Alliant Reloder-17<<locked>>98%58,117 psi89%2894 fps100%
Alliant Reloder-23ᴾ<<locked>>100%37,666 psi58%2549 fps98.7%
Alliant Reloder-26ᴾ<<locked>>100%41,756 psi64%2697 fps97.9%
Baschieri & Pellagri 106<<locked>>82%58,523 psi90%2631 fps100%
Baschieri & Pellagri 107<<locked>>88%56,260 psi87%2769 fps99.9%
Bofors RP3<<locked>>94%57,856 psi89%2789 fps100%
Bofors RP7<<locked>>98%57,812 psi89%2759 fps98%
Hodgdon Benchmark<<locked>>86%57,072 psi88%2684 fps100%
Hodgdon BL-C2<<locked>>88%58,247 psi90%2782 fps100%
Hodgdon CFE223<<locked>>84%56,797 psi87%2835 fps100%
Hodgdon H322<<locked>>82%55,970 psi86%2694 fps100%
Hodgdon H335<<locked>>82%57,072 psi88%2720 fps100%
Hodgdon H380<<locked>>94%58,798 psi90%2799 fps99.8%
Hodgdon H414ᴾ<<locked>>100%58,363 psi90%2854 fps98.7%
Hodgdon H4350<<locked>>96%55,477 psi85%2762 fps97.1%
Hodgdon H4895<<locked>>88%56,768 psi87%2759 fps100%
Hodgdon Hybrid 100Vᴾ<<locked>>100%49,153 psi76%2680 fps99.9%
Hodgdon LEVERevolution<<locked>>90%56,318 psi87%2795 fps100%
Hodgdon Superformance<<locked>>98%55,506 psi85%2838 fps97.9%
Hodgdon TrailBossᴾ<<locked>>100%35,230 psi54%1644 fps100%
Hodgdon VARGET<<locked>>90%58,204 psi90%2762 fps100%
IMR 3031<<locked>>88%56,782 psi87%2740 fps100%
IMR 4064<<locked>>92%56,869 psi87%2736 fps100%
IMR 4166 Enduron<<locked>>90%57,014 psi88%2720 fps98.3%
IMR 4198<<locked>>82%56,898 psi88%2608 fps100%
IMR 4350ᴾ<<locked>>100%54,534 psi84%2733 fps97.6%
IMR 4451 Enduron<<locked>>96%56,579 psi87%2743 fps98.2%
IMR 4831ᴾ<<locked>>100%51,982 psi80%2740 fps99.6%
IMR 4895<<locked>>90%55,753 psi86%2776 fps100%
IMR 8208 XBR<<locked>>86%55,405 psi85%2707 fps100%
Lovex D073.5<<locked>>82%55,245 psi85%2687 fps100%
Lovex D073.6<<locked>>88%55,970 psi86%2726 fps100%
Lovex S060<<locked>>88%55,767 psi86%2680 fps100%
Lovex S062<<locked>>92%56,420 psi87%2730 fps100%
Lovex S065<<locked>>98%55,347 psi85%2730 fps99.1%
Lovex S070ᴾ<<locked>>100%56,391 psi87%2766 fps98.5%
Norma 201<<locked>>90%58,146 psi89%2740 fps100%
Norma 202<<locked>>88%55,448 psi85%2697 fps100%
Norma 203B<<locked>>92%56,869 psi87%2779 fps100%
Norma 204ᴾ<<locked>>100%55,288 psi85%2782 fps96.4%
Norma URPᴾ<<locked>>100%54,288 psi84%2789 fps99.7%
Ramshot Big Game<<locked>>92%57,899 psi89%2808 fps100%
Ramshot Hunterᴾ<<locked>>100%53,098 psi82%2785 fps98.6%
Ramshot TAC<<locked>>86%55,506 psi85%2723 fps99.2%
Ramshot Wild Boar<<locked>>86%54,998 psi85%2740 fps100%
Ramshot X-Terminator<<locked>>84%56,347 psi87%2710 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%35,723 psi55%1683 fps100%
ReloadSwiss RS 40<<locked>>84%58,233 psi90%2730 fps100%
ReloadSwiss RS 50<<locked>>92%55,463 psi85%2733 fps98.6%
ReloadSwiss RS 52<<locked>>90%58,740 psi90%2864 fps100%
ReloadSwiss RS 60<<locked>>96%57,928 psi89%2890 fps100%
ReloadSwiss RS 62ᴾ<<locked>>100%54,911 psi84%2825 fps99.7%
ReloadSwiss RS 70ᴾ<<locked>>100%54,853 psi84%2854 fps99.6%
Rottweil R 901<<locked>>86%55,622 psi86%2674 fps100%
Rottweil R 902<<locked>>92%58,653 psi90%2740 fps100%
Rottweil R 903<<locked>>96%57,421 psi88%2776 fps100%
Rottweil R 907<<locked>>98%57,812 psi89%2759 fps98%
Shooters World Long Rifle<<locked>>98%55,347 psi85%2730 fps99.1%
Shooters World Match Rifle<<locked>>88%55,970 psi86%2726 fps100%
Shooters World Precision<<locked>>92%56,420 psi87%2730 fps100%
Shooters World SW4350ᴾ<<locked>>100%56,391 psi87%2766 fps98.5%
Shooters World Tactical Rifle<<locked>>82%57,943 psi89%2703 fps100%
SNPE Vectan SP 11<<locked>>94%55,767 psi86%2789 fps100%
SNPE Vectan SP 3<<locked>>82%57,856 psi89%2671 fps100%
SNPE Vectan SP 7<<locked>>88%57,696 psi89%2756 fps99.6%
SNPE Vectan SP 9<<locked>>90%58,421 psi90%2776 fps100%
SNPE Vectan Tubal 3000<<locked>>88%56,739 psi87%2638 fps100%
SNPE Vectan Tubal 5000<<locked>>94%56,681 psi87%2635 fps100%
SNPE Vectan Tubal 7000<<locked>>98%56,014 psi86%2687 fps98.2%
Somchem S321<<locked>>84%56,579 psi87%2736 fps100%
Somchem S335<<locked>>88%55,738 psi86%2635 fps100%
Somchem S341<<locked>>88%57,406 psi88%2746 fps100%
Somchem S355<<locked>>96%57,711 psi89%2772 fps100%
Somchem S365ᴾ<<locked>>100%48,530 psi75%2740 fps100%
Vihtavuori N130<<locked>>84%56,376 psi87%2598 fps100%
Vihtavuori N133<<locked>>88%56,985 psi88%2621 fps100%
Vihtavuori N135<<locked>>92%58,436 psi90%2700 fps100%
Vihtavuori N140<<locked>>90%55,999 psi86%2677 fps100%
Vihtavuori N150<<locked>>96%55,767 psi86%2707 fps100%
Vihtavuori N160ᴾ<<locked>>100%57,000 psi88%2785 fps99.8%
Vihtavuori N530<<locked>>86%55,811 psi86%2703 fps100%
Vihtavuori N540<<locked>>92%57,740 psi89%2720 fps100%
Vihtavuori N550ᴾ<<locked>>100%55,985 psi86%2792 fps99.7%
Vihtavuori N555ᴾ<<locked>>100%40,915 psi63%2618 fps98.6%
Winchester 6.5 StaBALLᴾ<<locked>>100%57,624 psi89%2766 fps100%
Winchester 748<<locked>>86%55,782 psi86%2749 fps100%
Winchester 760ᴾ<<locked>>100%58,697 psi90%2858 fps98.7%
Winchester StaBALL HDᴾ<<locked>>100%33,475 psi51%2543 fps98.4%
Winchester StaBALL Match<<locked>>90%58,305 psi90%2785 fps100%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%47,239 psi73%2516 fps100%
Accurate 2460<<locked>>80%51,692 psi80%2625 fps100%
Accurate 2495<<locked>>80%39,479 psi61%2438 fps100%
Accurate 2520<<locked>>80%46,775 psi72%2589 fps100%
Accurate 2700<<locked>>84%45,078 psi69%2516 fps95.1%
Accurate 4064<<locked>>80%37,347 psi57%2434 fps100%
Accurate 4350<<locked>>86%33,663 psi52%2421 fps95.8%
ADI AR 2206H<<locked>>80%43,569 psi67%2549 fps99.2%
ADI AR 2208<<locked>>80%36,956 psi57%2405 fps97.4%
ADI Benchmark 8208<<locked>>80%45,716 psi70%2559 fps99.9%
Alliant AR-Comp<<locked>>80%45,876 psi71%2543 fps100%
Alliant Power Pro 1200-R<<locked>>80%53,606 psi82%2753 fps100%
Alliant Power Pro 2000-MR49.1 gr80%39,523 psi61%2579 fps98%
Alliant Reloder- TS 15.5<<locked>>80%36,390 psi56%2425 fps98.7%
Alliant Reloder-10x<<locked>>80%53,229 psi82%2605 fps100%
Alliant Reloder-15<<locked>>80%39,233 psi60%2487 fps98.1%
Alliant Reloder-16<<locked>>84%32,082 psi49%2379 fps95%
Alliant Reloder-1748.4 gr80%31,473 psi48%2395 fps96.8%
Alliant Reloder-23<<locked>>92%29,341 psi45%2339 fps95.6%
Alliant Reloder-26<<locked>>96%36,376 psi56%2572 fps96%
Baschieri & Pellagri 106<<locked>>80%55,013 psi85%2589 fps100%
Baschieri & Pellagri 107<<locked>>80%42,743 psi66%2556 fps98.4%
Bofors RP3<<locked>>80%35,911 psi55%2428 fps98.7%
Bofors RP7<<locked>>90%44,947 psi69%2556 fps95.4%
Hodgdon Benchmark<<locked>>80%47,514 psi73%2546 fps100%
Hodgdon BL-C2<<locked>>80%44,324 psi68%2579 fps100%
Hodgdon CFE223<<locked>>80%49,313 psi76%2720 fps99.6%
Hodgdon H322<<locked>>80%52,257 psi80%2644 fps100%
Hodgdon H335<<locked>>80%53,461 psi82%2674 fps100%
Hodgdon H380<<locked>>80%36,869 psi57%2431 fps96.2%
Hodgdon H414<<locked>>90%41,713 psi64%2579 fps95.3%
Hodgdon H4350<<locked>>92%48,863 psi75%2657 fps95.7%
Hodgdon H4895<<locked>>80%43,961 psi68%2559 fps99.6%
Hodgdon Hybrid 100V<<locked>>84%29,269 psi45%2283 fps95.8%
Hodgdon LEVERevolution<<locked>>80%40,030 psi62%2536 fps99.4%
Hodgdon Superformance<<locked>>92%44,715 psi69%2657 fps95.5%
Hodgdon TrailBoss<<locked>>80%26,121 psi40%1467 fps100%
Hodgdon VARGET<<locked>>80%42,134 psi65%2513 fps99.3%
IMR 3031<<locked>>80%43,468 psi67%2552 fps100%
IMR 4064<<locked>>80%38,769 psi60%2438 fps98.1%
IMR 4166 Enduron<<locked>>80%41,278 psi64%2457 fps95%
IMR 4198<<locked>>80%53,432 psi82%2562 fps100%
IMR 4350<<locked>>94%45,237 psi70%2582 fps95.5%
IMR 4451 Enduron<<locked>>88%44,077 psi68%2539 fps95.7%
IMR 4831<<locked>>86%32,634 psi50%2379 fps95.5%
IMR 4895<<locked>>80%40,219 psi62%2516 fps98.8%
IMR 8208 XBR<<locked>>80%45,716 psi70%2559 fps99.9%
Lovex D073.5<<locked>>80%51,692 psi80%2638 fps100%
Lovex D073.6<<locked>>80%42,467 psi65%2530 fps100%
Lovex S060<<locked>>80%43,642 psi67%2490 fps99.2%
Lovex S062<<locked>>80%38,537 psi59%2438 fps99.3%
Lovex S065<<locked>>86%38,218 psi59%2434 fps95.7%
Lovex S070<<locked>>90%41,060 psi63%2510 fps95.3%
Norma 201<<locked>>80%42,511 psi65%2503 fps99.7%
Norma 202<<locked>>80%42,815 psi66%2510 fps100%
Norma 203B<<locked>>80%38,624 psi59%2477 fps98.4%
Norma 204<<locked>>98%51,590 psi79%2726 fps95.6%
Norma URP<<locked>>86%34,127 psi53%2421 fps95.8%
Ramshot Big Game<<locked>>80%38,174 psi59%2487 fps98.2%
Ramshot Hunter<<locked>>90%38,305 psi59%2516 fps95.2%
Ramshot TAC<<locked>>80%45,556 psi70%2566 fps97.8%
Ramshot Wild Boar<<locked>>80%45,165 psi69%2585 fps99.4%
Ramshot X-Terminator<<locked>>80%49,313 psi76%2605 fps99.7%
ReloadSwiss RS 14<<locked>>80%26,411 psi41%1499 fps100%
ReloadSwiss RS 40<<locked>>80%51,271 psi79%2635 fps100%
ReloadSwiss RS 50<<locked>>82%39,885 psi61%2467 fps95.4%
ReloadSwiss RS 52<<locked>>80%41,292 psi64%2585 fps98.5%
ReloadSwiss RS 6048.4 gr80%33,576 psi52%2461 fps99.5%
ReloadSwiss RS 62<<locked>>86%33,460 psi51%2434 fps95.2%
ReloadSwiss RS 70<<locked>>88%36,245 psi56%2500 fps95.3%
Rottweil R 901<<locked>>80%46,340 psi71%2539 fps100%
Rottweil R 902<<locked>>80%40,335 psi62%2454 fps99.5%
Rottweil R 903<<locked>>80%33,750 psi52%2372 fps97.9%
Rottweil R 907<<locked>>90%44,947 psi69%2556 fps95.4%
Shooters World Long Rifle<<locked>>86%38,218 psi59%2434 fps95.7%
Shooters World Match Rifle<<locked>>80%42,467 psi65%2530 fps100%
Shooters World Precision<<locked>>80%38,537 psi59%2438 fps99.3%
Shooters World SW4350<<locked>>90%41,060 psi63%2510 fps95.3%
Shooters World Tactical Rifle<<locked>>80%54,215 psi83%2654 fps100%
SNPE Vectan SP 11<<locked>>80%34,896 psi54%2425 fps97.4%
SNPE Vectan SP 3<<locked>>80%54,317 psi84%2628 fps100%
SNPE Vectan SP 7<<locked>>80%43,801 psi67%2539 fps97.9%
SNPE Vectan SP 9<<locked>>80%42,076 psi65%2520 fps99%
SNPE Vectan Tubal 3000<<locked>>80%44,106 psi68%2457 fps100%
SNPE Vectan Tubal 5000<<locked>>80%36,579 psi56%2333 fps100%
SNPE Vectan Tubal 7000<<locked>>90%43,004 psi66%2484 fps95.6%
Somchem S321<<locked>>80%49,313 psi76%2635 fps100%
Somchem S335<<locked>>80%43,598 psi67%2461 fps100%
Somchem S341<<locked>>80%43,526 psi67%2536 fps99.2%
Somchem S355<<locked>>80%34,708 psi53%2382 fps97.9%
Somchem S365<<locked>>80%24,903 psi38%2208 fps95.1%
Vihtavuori N130<<locked>>80%49,850 psi77%2516 fps100%
Vihtavuori N133<<locked>>80%44,483 psi68%2454 fps100%
Vihtavuori N135<<locked>>80%39,943 psi61%2441 fps100%
Vihtavuori N140<<locked>>80%40,654 psi63%2451 fps100%
Vihtavuori N150<<locked>>80%33,011 psi51%2323 fps98.6%
Vihtavuori N160<<locked>>84%33,489 psi52%2372 fps95.4%
Vihtavuori N530<<locked>>80%45,759 psi70%2552 fps99.9%
Vihtavuori N540<<locked>>80%39,073 psi60%2441 fps100%
Vihtavuori N550<<locked>>84%32,924 psi51%2375 fps95%
Vihtavuori N555<<locked>>92%31,357 psi48%2408 fps95.6%
Winchester 6.5 StaBALL<<locked>>80%29,283 psi45%2247 fps95.9%
Winchester 748<<locked>>80%45,498 psi70%2598 fps100%
Winchester 760<<locked>>90%41,930 psi65%2585 fps95.4%
Winchester StaBALL HD<<locked>>96%29,327 psi45%2411 fps96.1%
Winchester StaBALL Match<<locked>>80%41,466 psi64%2523 fps99.3%

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.

<<locked>> you need an access license to unlock this data.

This overview compares 106 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 180gr | CutEdge MTH. Alliant Reloder-17 delivers the highest muzzle velocity at 2,894 fps; across all powders the maximum-charge window runs from 1,644 fps to 2,894 fps. Accurate 4350 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 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. 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 | 180gr | CutEdge MTH 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.

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