If one wants to maximize his rifle's potential at a variety of ranges, adjustment is definitely beneficial. Especially for higher magnification scopes working in the near range environment. I do a couple of cases worth of Beldings ground squirrels each spring ranging from 5 to 140 or 150 yds. When youngsters initially emerge, they can be less than an inch wide when standing up. Given less than bench quality rests in the field, I need every advantage I can get so that my favorite rancher will keep buying ammo for me.
For those baby squirrels, I absolutely need at least a 10X scope. It's the difference between simply aiming at a squirrel's body, and trying for dead right there head shots.
Is it required? Absolutely not. But damned well worth it for my uses.
Last edited by 1minute; 01/12/11.
