Load data for .300 RCM + .308 | 168gr | CutEdge MTAC

.300 RCM cartridge drawing
Cutting Edge logo

Load Specifications

Bullet Manufacturer:Cutting Edge
Bullet Weight:168 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Case Length (l3):2.09"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:75 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:11.5

Load data in caliber .300 RCM with .308 | 168gr | CutEdge MTAC 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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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%55,129 psi86%2723 fps100%
Accurate 2460<<locked>>84%56,898 psi89%2795 fps100%
Accurate 2495<<locked>>92%56,405 psi88%2785 fps100%
Accurate 2520<<locked>>86%55,376 psi87%2812 fps100%
Accurate 2700<<locked>>92%56,724 psi89%2792 fps96.9%
Accurate 4064<<locked>>94%56,115 psi88%2828 fps100%
Accurate 4350ᴾ<<locked>>100%52,620 psi82%2861 fps99.3%
Accurate LT-30<<locked>>82%57,450 psi90%2710 fps100%
ADI AR 2206H<<locked>>90%57,740 psi90%2871 fps100%
ADI AR 2208<<locked>>94%55,230 psi87%2818 fps99.7%
ADI Benchmark 8208<<locked>>88%56,782 psi89%2822 fps100%
Alliant AR-Comp<<locked>>88%57,319 psi90%2795 fps100%
Alliant Power Pro 1200-R<<locked>>82%55,042 psi86%2877 fps100%
Alliant Power Pro 2000-MR<<locked>>92%57,682 psi90%2992 fps99.9%
Alliant Reloder- TS 15.5<<locked>>94%54,766 psi86%2838 fps100%
Alliant Reloder-10x<<locked>>82%54,752 psi86%2726 fps100%
Alliant Reloder-15<<locked>>92%55,695 psi87%2861 fps99.8%
Alliant Reloder-16ᴾ<<locked>>100%50,937 psi80%2861 fps99.3%
Alliant Reloder-17<<locked>>98%55,709 psi87%2959 fps100%
Alliant Reloder-23ᴾ<<locked>>100%35,998 psi56%2592 fps97.5%
Alliant Reloder-26ᴾ<<locked>>100%40,016 psi63%2740 fps96.4%
Baschieri & Pellagri 106<<locked>>82%56,985 psi89%2710 fps100%
Baschieri & Pellagri 107<<locked>>88%53,896 psi84%2835 fps99.5%
Bofors RP3<<locked>>94%55,201 psi87%2851 fps100%
Bofors RP7<<locked>>98%55,738 psi87%2818 fps97%
Hodgdon Benchmark<<locked>>86%55,347 psi87%2759 fps100%
Hodgdon BL-C2<<locked>>88%56,115 psi88%2854 fps100%
Hodgdon CFE223<<locked>>84%54,331 psi85%2897 fps99.7%
Hodgdon H322<<locked>>84%57,580 psi90%2815 fps100%
Hodgdon H335<<locked>>82%55,042 psi86%2795 fps100%
Hodgdon H380<<locked>>94%56,536 psi89%2864 fps99.3%
Hodgdon H414ᴾ<<locked>>100%55,970 psi88%2913 fps97.8%
Hodgdon H4350<<locked>>98%56,942 psi89%2877 fps96.6%
Hodgdon H4895<<locked>>88%54,665 psi86%2828 fps100%
Hodgdon Hybrid 100Vᴾ<<locked>>100%46,978 psi74%2740 fps99.6%
Hodgdon LEVERevolution<<locked>>90%53,766 psi84%2861 fps100%
Hodgdon Superformanceᴾ<<locked>>100%57,217 psi90%2953 fps97.5%
Hodgdon TrailBossᴾ<<locked>>100%35,128 psi55%1706 fps100%
Hodgdon VARGET<<locked>>90%56,101 psi88%2835 fps100%
IMR 3031<<locked>>88%54,505 psi85%2815 fps100%
IMR 4064<<locked>>92%54,795 psi86%2802 fps99.8%
IMR 4166 Enduron<<locked>>90%55,013 psi86%2782 fps97.4%
IMR 4198<<locked>>82%54,911 psi86%2684 fps100%
IMR 4350ᴾ<<locked>>100%52,373 psi82%2789 fps96.4%
IMR 4451 Enduron<<locked>>96%54,389 psi85%2802 fps97.3%
IMR 4831ᴾ<<locked>>100%49,850 psi78%2799 fps99%
IMR 4895<<locked>>92%57,130 psi90%2894 fps100%
IMR 8208 XBR<<locked>>88%56,782 psi89%2822 fps100%
Lovex D073.5<<locked>>84%57,087 psi89%2808 fps100%
Lovex D073.6<<locked>>90%57,261 psi90%2844 fps100%
Lovex S060<<locked>>90%57,595 psi90%2802 fps100%
Lovex S062<<locked>>94%57,595 psi90%2844 fps100%
Lovex S065ᴾ<<locked>>100%56,840 psi89%2844 fps98.8%
Lovex S070ᴾ<<locked>>100%54,085 psi85%2825 fps97.6%
Norma 201<<locked>>90%56,028 psi88%2812 fps100%
Norma 202<<locked>>90%56,768 psi89%2815 fps100%
Norma 203B<<locked>>92%54,853 psi86%2848 fps99.9%
Norma URPᴾ<<locked>>100%51,851 psi81%2848 fps99.1%
Ramshot Big Game<<locked>>92%55,463 psi87%2874 fps99.9%
Ramshot Hunterᴾ<<locked>>100%50,981 psi80%2844 fps97.7%
Ramshot TAC<<locked>>88%57,508 psi90%2844 fps99%
Ramshot Wild Boar<<locked>>88%56,927 psi89%2864 fps100%
Ramshot X-Terminator<<locked>>84%54,346 psi85%2776 fps99.8%
ReloadSwiss RS 14ᴾ<<locked>>100%35,302 psi55%1742 fps100%
ReloadSwiss RS 40<<locked>>84%56,304 psi88%2802 fps100%
ReloadSwiss RS 50<<locked>>94%57,319 psi90%2851 fps98.4%
ReloadSwiss RS 52<<locked>>90%56,057 psi88%2927 fps99.8%
ReloadSwiss RS 60<<locked>>96%55,637 psi87%2963 fps100%
ReloadSwiss RS 62ᴾ<<locked>>100%52,344 psi82%2881 fps99.1%
ReloadSwiss RS 70ᴾ<<locked>>100%52,663 psi83%2910 fps98.9%
Rottweil R 901<<locked>>88%56,826 psi89%2792 fps100%
Rottweil R 902<<locked>>92%56,521 psi89%2808 fps100%
Rottweil R 903<<locked>>96%55,100 psi86%2841 fps100%
Rottweil R 907<<locked>>98%55,738 psi87%2818 fps97%
Shooters World Long Rifleᴾ<<locked>>100%56,840 psi89%2844 fps98.8%
Shooters World Match Rifle<<locked>>90%57,261 psi90%2844 fps100%
Shooters World Precision<<locked>>94%57,595 psi90%2844 fps100%
Shooters World SW4350ᴾ<<locked>>100%54,085 psi85%2825 fps97.6%
Shooters World Tactical Rifle<<locked>>82%55,941 psi88%2776 fps100%
SNPE Vectan SP 11<<locked>>96%57,406 psi90%2910 fps100%
SNPE Vectan SP 3<<locked>>82%55,854 psi88%2749 fps100%
SNPE Vectan SP 7<<locked>>88%55,608 psi87%2822 fps99.1%
SNPE Vectan SP 9<<locked>>90%56,086 psi88%2844 fps99.9%
SNPE Vectan Tubal 3000<<locked>>88%54,694 psi86%2710 fps100%
SNPE Vectan Tubal 5000<<locked>>94%54,621 psi86%2707 fps100%
SNPE Vectan Tubal 7000ᴾ<<locked>>100%57,696 psi90%2802 fps97.8%
Somchem S321<<locked>>84%54,418 psi85%2805 fps100%
Somchem S335<<locked>>90%57,116 psi90%2749 fps100%
Somchem S341<<locked>>88%55,013 psi86%2812 fps99.9%
Somchem S355<<locked>>96%55,564 psi87%2841 fps100%
Somchem S365ᴾ<<locked>>100%46,180 psi72%2795 fps100%
Vihtavuori N130<<locked>>84%54,505 psi85%2674 fps100%
Vihtavuori N133<<locked>>88%54,853 psi86%2694 fps100%
Vihtavuori N135<<locked>>92%56,159 psi88%2776 fps100%
Vihtavuori N140<<locked>>92%57,537 psi90%2795 fps100%
Vihtavuori N150<<locked>>98%57,421 psi90%2825 fps100%
Vihtavuori N160ᴾ<<locked>>100%54,766 psi86%2851 fps99.4%
Vihtavuori N530<<locked>>88%57,522 psi90%2825 fps100%
Vihtavuori N540<<locked>>92%55,419 psi87%2792 fps100%
Vihtavuori N550ᴾ<<locked>>100%53,432 psi84%2851 fps99.1%
Vihtavuori N555ᴾ<<locked>>100%38,754 psi61%2664 fps97.5%
Winchester 6.5 StaBALLᴾ<<locked>>100%55,390 psi87%2831 fps100%
Winchester 748<<locked>>88%57,159 psi90%2871 fps100%
Winchester 760ᴾ<<locked>>100%56,289 psi88%2917 fps97.9%
Winchester StaBALL HDᴾ<<locked>>100%32,039 psi50%2566 fps96.5%
Winchester StaBALL Match<<locked>>90%56,130 psi88%2851 fps100%

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%45,542 psi71%2585 fps100%
Accurate 2460<<locked>>80%49,835 psi78%2697 fps100%
Accurate 2495<<locked>>80%37,666 psi59%2500 fps100%
Accurate 2520<<locked>>80%44,947 psi70%2654 fps100%
Accurate 2700<<locked>>88%49,748 psi78%2684 fps95.5%
Accurate 4064<<locked>>80%35,636 psi56%2487 fps99.8%
Accurate 4350<<locked>>88%34,185 psi54%2516 fps95.2%
Accurate LT-30<<locked>>80%54,085 psi85%2664 fps100%
ADI AR 2206H<<locked>>80%41,872 psi66%2608 fps98.5%
ADI AR 2208<<locked>>80%35,781 psi56%2461 fps96.3%
ADI Benchmark 8208<<locked>>80%43,990 psi69%2618 fps99.6%
Alliant AR-Comp<<locked>>80%43,903 psi69%2612 fps100%
Alliant Power Pro 1200-R<<locked>>80%51,416 psi81%2822 fps99.9%
Alliant Power Pro 2000-MR<<locked>>80%38,000 psi60%2628 fps96.7%
Alliant Reloder- TS 15.5<<locked>>80%35,056 psi55%2480 fps97.8%
Alliant Reloder-10x<<locked>>80%51,488 psi81%2680 fps100%
Alliant Reloder-15<<locked>>80%37,623 psi59%2539 fps97.1%
Alliant Reloder-16<<locked>>88%35,099 psi55%2536 fps95.4%
Alliant Reloder-17<<locked>>80%30,081 psi47%2431 fps95.1%
Alliant Reloder-23<<locked>>96%31,749 psi50%2480 fps95.8%
Alliant Reloder-26<<locked>>98%37,173 psi58%2671 fps95.3%
Baschieri & Pellagri 106<<locked>>80%53,301 psi84%2661 fps100%
Baschieri & Pellagri 107<<locked>>80%41,089 psi64%2612 fps97.4%
Bofors RP3<<locked>>80%34,214 psi54%2474 fps97.6%
Bofors RP7<<locked>>94%49,081 psi77%2713 fps95.7%
Hodgdon Benchmark<<locked>>80%45,919 psi72%2612 fps99.9%
Hodgdon BL-C2<<locked>>80%42,569 psi67%2638 fps99.7%
Hodgdon CFE223<<locked>>80%47,181 psi74%2782 fps99.1%
Hodgdon H322<<locked>>80%50,589 psi79%2720 fps100%
Hodgdon H335<<locked>>80%51,285 psi80%2740 fps100%
Hodgdon H380<<locked>>82%37,753 psi59%2536 fps95.7%
Hodgdon H414<<locked>>94%45,745 psi72%2743 fps95.7%
Hodgdon H4350<<locked>>94%49,966 psi78%2766 fps95.1%
Hodgdon H4895<<locked>>80%42,221 psi66%2618 fps99%
Hodgdon Hybrid 100V<<locked>>86%29,950 psi47%2379 fps95.2%
Hodgdon LEVERevolution<<locked>>80%38,159 psi60%2585 fps98.6%
Hodgdon Superformance<<locked>>96%49,414 psi77%2828 fps95.9%
Hodgdon TrailBoss<<locked>>80%25,976 psi41%1522 fps100%
Hodgdon VARGET<<locked>>80%40,785 psi64%2575 fps98.7%
IMR 3031<<locked>>80%41,611 psi65%2615 fps100%
IMR 4064<<locked>>80%37,507 psi59%2493 fps97.1%
IMR 4166 Enduron<<locked>>84%45,585 psi71%2625 fps95.4%
IMR 4198<<locked>>80%51,895 psi81%2644 fps100%
IMR 4350<<locked>>96%46,209 psi72%2687 fps95%
IMR 4451 Enduron<<locked>>90%45,353 psi71%2648 fps95.2%
IMR 4831<<locked>>90%35,723 psi56%2533 fps95.8%
IMR 4895<<locked>>80%38,551 psi60%2572 fps97.9%
IMR 8208 XBR<<locked>>80%43,990 psi69%2618 fps99.6%
Lovex D073.5<<locked>>80%49,472 psi78%2703 fps100%
Lovex D073.6<<locked>>80%40,770 psi64%2589 fps99.9%
Lovex S060<<locked>>80%42,424 psi66%2552 fps98.6%
Lovex S062<<locked>>80%37,246 psi58%2500 fps98.6%
Lovex S065<<locked>>88%39,088 psi61%2536 fps95.1%
Lovex S070<<locked>>94%44,672 psi70%2664 fps95.5%
Norma 201<<locked>>80%40,901 psi64%2562 fps99.2%
Norma 202<<locked>>80%41,350 psi65%2575 fps100%
Norma 203B<<locked>>80%36,985 psi58%2530 fps97.4%
Norma URP<<locked>>88%34,983 psi55%2526 fps95.2%
Ramshot Big Game<<locked>>80%36,564 psi57%2539 fps97.1%
Ramshot Hunter<<locked>>94%41,640 psi65%2671 fps95.4%
Ramshot TAC<<locked>>80%43,976 psi69%2625 fps96.7%
Ramshot Wild Boar<<locked>>80%43,221 psi68%2641 fps98.7%
Ramshot X-Terminator<<locked>>80%47,659 psi75%2671 fps99.3%
ReloadSwiss RS 14<<locked>>80%26,208 psi41%1558 fps100%
ReloadSwiss RS 40<<locked>>80%49,371 psi77%2703 fps100%
ReloadSwiss RS 50<<locked>>86%43,990 psi69%2635 fps95.7%
ReloadSwiss RS 52<<locked>>80%39,465 psi62%2641 fps97.5%
ReloadSwiss RS 60<<locked>>80%32,068 psi50%2500 fps98.5%
ReloadSwiss RS 62<<locked>>90%36,651 psi57%2592 fps95.6%
ReloadSwiss RS 70<<locked>>92%39,900 psi63%2664 fps95.8%
Rottweil R 901<<locked>>80%44,744 psi70%2608 fps100%
Rottweil R 902<<locked>>80%38,827 psi61%2513 fps98.9%
Rottweil R 903<<locked>>80%32,198 psi50%2418 fps96.7%
Rottweil R 907<<locked>>94%49,081 psi77%2713 fps95.7%
Shooters World Long Rifle<<locked>>88%39,088 psi61%2536 fps95.1%
Shooters World Match Rifle<<locked>>80%40,770 psi64%2589 fps99.9%
Shooters World Precision<<locked>>80%37,246 psi58%2500 fps98.6%
Shooters World SW4350<<locked>>94%44,672 psi70%2664 fps95.5%
Shooters World Tactical Rifle<<locked>>80%52,359 psi82%2723 fps100%
SNPE Vectan SP 11<<locked>>80%33,518 psi53%2474 fps96.1%
SNPE Vectan SP 3<<locked>>80%52,460 psi82%2703 fps100%
SNPE Vectan SP 7<<locked>>80%41,916 psi66%2592 fps96.8%
SNPE Vectan SP 9<<locked>>80%40,582 psi64%2579 fps98.2%
SNPE Vectan Tubal 3000<<locked>>80%42,627 psi67%2526 fps100%
SNPE Vectan Tubal 5000<<locked>>80%35,230 psi55%2392 fps99.9%
SNPE Vectan Tubal 7000<<locked>>92%44,092 psi69%2589 fps95.1%
Somchem S321<<locked>>80%47,514 psi74%2700 fps99.9%
Somchem S335<<locked>>80%42,047 psi66%2526 fps100%
Somchem S341<<locked>>80%41,843 psi66%2595 fps98.4%
Somchem S355<<locked>>80%33,257 psi52%2431 fps96.8%
Somchem S365<<locked>>84%27,224 psi43%2356 fps95.5%
Vihtavuori N130<<locked>>80%48,283 psi76%2589 fps100%
Vihtavuori N133<<locked>>80%42,946 psi67%2523 fps100%
Vihtavuori N135<<locked>>80%38,334 psi60%2503 fps100%
Vihtavuori N140<<locked>>80%39,030 psi61%2510 fps100%
Vihtavuori N150<<locked>>80%31,560 psi49%2369 fps97.6%
Vihtavuori N160<<locked>>88%36,564 psi57%2526 fps95.7%
Vihtavuori N530<<locked>>80%43,976 psi69%2615 fps99.6%
Vihtavuori N540<<locked>>80%37,434 psi59%2497 fps99.8%
Vihtavuori N550<<locked>>88%35,824 psi56%2526 fps95.3%
Vihtavuori N555<<locked>>96%33,910 psi53%2556 fps95.8%
Winchester 6.5 StaBALL<<locked>>82%30,182 psi47%2346 fps95.4%
Winchester 748<<locked>>80%43,453 psi68%2661 fps99.9%
Winchester 760<<locked>>94%45,745 psi72%2743 fps95.7%
Winchester StaBALL HD<<locked>>98%30,037 psi47%2500 fps95.1%
Winchester StaBALL Match<<locked>>80%39,885 psi63%2582 fps98.6%

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 RCM loaded with the .308 | 168gr | CutEdge MTAC. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,992 fps; across all powders the maximum-charge window runs from 1,706 fps to 2,992 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 (440 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 168.0 gr projectile in 0.308" calls for a 1:11.5 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.

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