Looked like a majority of the rifles there are AR platforms? I've always wanted to get into something like this, am used to smallbore target shooting but windage (usually) isn't quite as much of an issue over 50 feet (even with 36-40 gr .22 bullet). I've got a scope mount for my M-1A NM that I haven't installed yet (and need to get a scope for it if I do) but am wondering if I'd need to change platforms.