I've shot plenty beyond 400 yards. Hell, I've shot with stick waaaay beyond 400 yards.
So, I guess the "challenge" you issue is only for the guys who you choose, on your terms. Interesting.
Calvin,
Not shown eh. Schit dude I don't balme you. Nothing good gonna happen unless you open your mind. MT in the spring.
Grow a set and come play with the big boys.