This is my first post so hi everyone . I use a .17-204 moving 30 grain gold at about 4150 fps it still has some throttle left but I am happy with the groups and velocity I am getting. I have used a .223 , .22-250, .204 and a 17 rem.
My go to for convenience /walk about are my AR's in .223, but for dead nuts accurate and short walks - .243 Rem-Varmint. I am interested in the Olympic Arms .243 WSM. I could see trading my Bush/varmint for, as they are the same style. I impressed myself the other day with my M-4 , Burris bdc , clang the steel 300 yds - no problem. Watch your backdrop and ricochets.
6 X45mm. Shilen Select Match, 1-12 twist, Hornaday 75g V-Max @ 2825fps. Not extreamly fast, but darn accurate. Reliable killer of coyotes out to 250yds. For longer ranges, .22-.243 Winchester. Shilen Select Match, 1-8 twist, Sierra 80g Match King @ 3500fps.