I once got to play with a Trijicon Accupower 1X4 and was really impressed with the glass. It was very clear and I liked it better than the 1x6 Swarovsky that was all the rage then at twice the price. Back then it was a $1000 scope. Now it may be closer to your price point especially if you find it on sale. The 1X8 version will be much above it. I've not found a reason for needing more than 4X on my ARs except it is very nice for shooting small groups on paper from the bench, an Aimpoint RDS is good for me out to about 300. A 4X with good glass should be fine for 700 yard steel but that Bushnell should be a decent scope.