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Archived [ARCHIVED THREAD] - What caliber upper?
Posted: 8/27/2003 6:26:38 PM EDT
Ok,  I have my complete lower, but have yet to order parts to build my upper.  Lately, I've been reading about the super secret 6.8mm cartridge that the military is supposed to be developing.

Should I go ahead and build for 5.56 or wait and see?

In reality, I'm going to build 5.56, but wonder what you all think about it.
Link Posted: 8/27/2003 7:41:37 PM EDT
[#1]
I like .17 Remington.

Link Posted: 8/28/2003 6:00:07 AM EDT
[#2]
Build for 5.56mm, Im working on my third gun now, all are 5.56mm.

Archived [ARCHIVED THREAD] - What caliber upper?
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