With that grip, I would probably like a 14" lop. I am 6'1" and slim. There are so many things which enter into stock dimensions that it is kind of difficult to make recommendations. How a person likes to stand, whether he prefers to shoot with the elbow high or low, how he likes to have his head. Whether he shoots a lot offhand or from sitting or prone, all of these affect what stock shape and dimensions should be. GD