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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
6mm ARC Upper Build
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<blockquote data-quote="264MHC" data-source="post: 2677609" data-attributes="member: 111161"><p>I used a CMT upper and lower for my .243 LBC (Close cousin to the ARC). Mine is the 3A for a side charging BCG. Excellent quality machining and finish. Not too heavy either, even though it is beefed up compared to a standard forged upper. The Port is larger than standard, but I don't think its necessary.</p><p></p><p>Mine is a 20" BHW barrel 3 Groove 1:8. Shoots everything sub MOA but 95 HVLD's have been the most consistent at .5 MOA. 2830 Avg SD 6 over 28.2 AR Comp in Starline 6.5 G necked down. Killer light recoil deer round. The 95s are really the perfect length and weight for this cartridge. The 105-108 Class just haven't been as consistent and best accuracy was 2650-2680 so the 95 Load beats it anyway. It can go faster with Hodgdon LVR of CFE 223, but AR Comp is so stable, I hate to use anything else.</p><p></p><p>Be aware the ARC has slightly less case capacity with the shoulder pushed back .030" so my loads may be too hot in an ARC.</p></blockquote><p></p>
[QUOTE="264MHC, post: 2677609, member: 111161"] I used a CMT upper and lower for my .243 LBC (Close cousin to the ARC). Mine is the 3A for a side charging BCG. Excellent quality machining and finish. Not too heavy either, even though it is beefed up compared to a standard forged upper. The Port is larger than standard, but I don't think its necessary. Mine is a 20" BHW barrel 3 Groove 1:8. Shoots everything sub MOA but 95 HVLD's have been the most consistent at .5 MOA. 2830 Avg SD 6 over 28.2 AR Comp in Starline 6.5 G necked down. Killer light recoil deer round. The 95s are really the perfect length and weight for this cartridge. The 105-108 Class just haven't been as consistent and best accuracy was 2650-2680 so the 95 Load beats it anyway. It can go faster with Hodgdon LVR of CFE 223, but AR Comp is so stable, I hate to use anything else. Be aware the ARC has slightly less case capacity with the shoulder pushed back .030" so my loads may be too hot in an ARC. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
6mm ARC Upper Build
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