I have the LRP in a 6.5 CM and had the 12x SWFA SS on it for a while and it was a nice shooter. I was constantly hitting the 4" steel target at 400 yards, almost like I couldn't miss.

I stepped up to a Burris XTR2 and love it even more!
I went 7 out of 10 on a 12" steel target at 1000 yards the only time I ever shot over 780 yards.

Before you know it that 600 yard 6" target of yours will be automatic.