Never really shot long long range before (nothing ever over 400 yrds), but I'm working on it. I bought a new Remington Sendero SF II in 300 RUM. I also just got in the Vortex PST 6-24X50 FFP scope. On order (should receive them later this week) is the EGW 20 MOA picatinny rail and the Burris extreme tactical low rings. (Side note - I really hope the "low" rings give me enough clearance. This same scope, base, rings combo worked great on a Savage rifle - according to a LRH member.) My question is - Would a cheek rest provide any benefit at this point? If so - any suggestions on brand? Thanks so much for any feedback.