The military provides all manner of absolute chit for our guys to use... lowest bid stuff. That the military uses something often proves/means exactly nothing, except that the Rem 700 is easy to chuck up on a lathe and re-work by anyone marginally qualified to use a lathe, and that a buzillion aftermarket parts are available for it. It's a toilet paper tube you can attach chit to. Perfect for a military armorer, a cheap means to an end.
I have nothing against 700's, just trying to keep a little reality in the conversation.
700's make excellent varmint rifles
When Dave Gentry was alive I asked him about the 700 bolt handle and he told me he re-welded a number each year...