I've had M8's in 4x and 6x and a Conquest 1.8-5.5. All have 4" eye relief and all worked great on my .338. I've been happy with all of them and only changed because I was messing around. I do think I like the conquest best. BUT if the poop hit the fan and I knew I had no options I'd put the m8 6x36 on and sleep well.
