I own a Ruger Predator 243 and have the Monstrum 8-32x56 scope mounted. I want as cheap as possible rangefinder that is great at ranging prairie dogs. I will be using this rifle for coyotes, prairie dogs, pronghorn and maybe a cow elk down the road. I have the scope set for the Winchester 95 grain Ballistic Silvertip for all of the above. I do not reload and I want to stick to one round for if at all possible. I figure that commercial loads are the route I’ll go for at least the beginning years of hunting. I am in no way new to guns and hunting but I am a beginner at prairie dogs and ranging them. This is a good start. Upgrades later .