I was comparing the Nikon Buckmaster and Prostaff riflescopes to place on a H&R Handi-Rifle in 45/70. I noticed that the Buckmaster line is completely waterproof, fogproof, and shockproof. The Prostaff line claims to only be waterproof and fogproof. The company says nothing about the Prostaff scopes being shockproof, however the company claims that positive click adjustments maintain your settings even with heavy recoil. What is the difference between shockproof and the fact that the scope maintains it settings even with heavy recoil. I am just trying to decide what the big difference between the Buckmaster and the Prostaff lines is other than the 92% vs. 90% light transmisson.