Re: Thoughts on this medium range set up
If You can hold .55 moa on the bench and you and the rig can hold 1 moa, in field shooting positions, you should have no problem killing any deer out to 500 yards.
Practice from prone, or shooting stix from the seated position. Make sure your choice of scope has good dials and repeats/tracks well.
I always try to get 2-3 weeks of good LR practice with a rifle before I go on a hunt.
I used to practice all summer, but with all the f-class shooting I do the summer is kinda full.