For a $50 difference, I'd also go with the M7.

Heck, for a $100 difference I'd still go for the M7. Used, they're going for stupid prices right now on Gunbroker. I own 3 M7s now; .223, .260 and .350RM and I'm on the lookout for a gently used 4th to turn into a project gun.

“Might does not make right but it sure makes what is.”