So I bought a tikka 300 wsm put a McMillan edge on it a powder coated the gun and topped it off with a Swarovski Z5 3.5-18x44BT. Since installation I have not touched a dial on the new scope. It was almost bang on at 200 yards which is the distance that do my load development at. So I found my load and only had to adjust 4 clicks to the left and entered my ballistics in the Swarovski site a I set my dial clicks to 400,500,600 yards. I confirmed 200 yard 0 this morning and then moved out to 500 yards and put 2 shots inside a 4" painted circle twice on a 2 X 2' steel plate. What a awesome scope and I've never been so happy with a scope but I have never owned this caliber of scope before. My load is a 168 ttsx @ 3250 fps.