Anyone familiar with or own an Interarms Mark X? I found one in 7 x 57 at a local show. It had double set triggers and appeared to be nearly unfired. Price $550 before making any kind of deal. The price doesn't bother me, but on some sites I read that they are not accurate. I'm a REAL accuracy freak (either they shoot extremely well or they hit the road) ! What can you tell me.