Interesting read thru this thread. I recently finished a bench rest rifle for my wife in 220 Swift. It's a 30 inch 7 twist throated for 90g bergers. We really only had time to do a course load development to catch the last match of the year but its showing promise. Best group so far is .213 for 4 shots @ 100 yards. It's only running 2850 fps so I'm hoping there is another node in the barrel higher up, my goal was 3100.The match we shoot is steel between 850 and 1000 yards. Its funny people either think it's cool to see someone trying something different or they think you’re a nut!