KY-Bob,
The 308 Sabre is in prototype stages, I have the reamer, the dies are due tomorrow and Brouhaha has already seen the two first prototype cases. It fits in the AR-15 mag, and I am waiting on a "special" bolt for the upper - several folks are now starting to produce improved high strength bolts (there is a minute flaw in the Colt bolt)
Performance of the 308 Sabre on "paper" (QuickLoad)
168 gr bullet at 2,400 fps from a 24" barrel - this is 400 fps shy of the .308 Win.
The lighter bullets (110-140) should rival the 308 on the nose, but the heavier ones lose out due to the smaller powder volume. Magazine modification do not appear to be needed.
Edit - Bob, where in KY? I graduallymated from U of L, da Ville! Go Cards! (or were those go-karts?)
Marty ter Weeme
Teppo Jutsu LLC