I bought a 750 Carbine in .308 about two years ago from gunbroker. Put a nice scope on it, and couldn't get a good group to save my life. I tried different bullets and everything and the best group I got was about a 7 inch group at 50 yards. It might have just been a defective gun/scope but I will never get a 750 Carbine again. I returned to the guy who I bought it from