The Redfield is a good choice. I put Weaver straight 4X on my Mini14 and 30 and they are fine. I got a good deal on the scopes when I bought the rifles and Redfield was not back in business under the Leupold company at the time. You would be fine with a straight 4X or if you like a 2X7 or even a 3X9.
A 30cal will reach out and touch them. A 50cal will kick their butt.
NRA Life Member
SCI, Manteca Sportsmen Club, Coalinga Rifle Club, Escalon Sportsmans Club & NAHA Member