How far do you plan to hit game? I take the farthest I plan to shoot in the field and then add 25% or so. The longest shot I have taken is at 300 yds and made a clean shot. I will practice to 400 yds, and be consistent. That allows me to make shots at shorter distances, and not have to worry about "buck fever" too much. The longest shot I will take is 300 yds on deer and such with my .30-06. With my .223, who knows, ground squirrels are usually a hit or miss proposition. With my .50 ML, I will practice to 75 yds and not shoot at deer or elk past 60.