Ha, I got your "rookie" swingin'. I'm also proficient with the M14. Although I'm partial to the AR15 platform.
8^)
5.56mm
I qualified with the M-14, M-16, and shot the AK-47. I was partial to the M-16 though. I shot high expert on the range including 500 yards with a stock (peeps) M-16. That must have been some transitional phase when I was in because I also shot some enormous black tubed flared end bazooka (world war I?) as well as a laws rocket.