This thread has reminded me of when our range first made a 400 yard target available.
With two different rifles that both placed 5 shot groups in less than 1" @ 100 yards, I shot 8" groups @ 400 yards from a bench!
And another surprise was one rifle didn't drop as much as it was suppose to, and the other dropped a lot more. It is so important to know where your rifle hits.
Until I had this experience, I had just always thought that if your rifle would shoot MOA @ 100, it would be 4" @ 400 etc.
Since then I do my load testing and development at 200 yards and that has helped. <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
