Re: rem 700 .308 wont hold groups
Many of us have been in your shoes.
Money is hard to come by, and it seems that anything of decent quality costs a lot.
350 is not a bad benchmark for a decent scope.
To be honest, I would not be too concerned with a mil-dot scope right now, just something that has decent glass and is solidly put together.
Years ago, before there was a real "tactical" scope market, I bought a Bausch and Lomb Elite 3000 4-12 scope. Glass was decent, not spectacular, it was fingertip adjustable, though not a tactical style turret scope, but it was accurate, repeatable and tough. Had it mounted on a 7mm Rem Mag.
I still have that scope, it still works and it cost about 280 bucks back in 1994.
It was my first "good" scope. It still is a good scope.
You don't "need" a tactical scope right now, you need a good, solid scope that tracks accurately and holds zero.
For example, look at this:
http://swfa.com/Sightron-45-14x42-SII-Big-Sky-Riflescope-P9165.aspx
It is initially a little higher than your budget, but with the 100 dollar rebate, comes in far below your budget.