Expensive sunsabitches to feed properly though.... .223 wins big time there!
Back when 200-round battle packs of NATO milsurp 7.62 were $40 the semi auto .308 made more sense. Now, too rich for my blood, to really "do the voodoo they do" ....
Yeah, I was be-moaning the thoughts of cheap ammo days this past weekend.
I will always have a soft spot for a wood stocked battle rifle from US lineage...
Both rifles are good platforms, but each has it's limitations for use. Weight is a consideration for both, and the uber accurate ones tend to run on the heavy side.
Standardization of interchangeable parts is getting better in the AR-10 platform, but still not as "fixed" as with the smaller -15 cousin.
Your AR-10 can swap to alternate calibers with two pins, maybe a magazine.
M1A parts are limited to a very finite number of sources, and not many companies are investing in new production. "Parts are (not) parts" in either rifle, quality and tolerance in production will win out over time and use of either.
