Roger, I would recomend an Ultradot red dot for it. I know I sound like a broken record, but it is one tough optic. I have an Ultradot 30 (currently on my .500 JRH BFR), that has survived thousands of full-tilt .475 LInebaugh loads in my SRH. I have dropped it out of a tree stand not once, but twice and it never lost zero or was adversely effected in any way. It costs about $160.00 shipped and it comes with a lifetime warranty. Very hard to beat.