I would also think a good quality low power scope can help one pick out a target in heavy cover much, much, better than open sights....even at short range.

A low power scope on a properly fitted gun should be a benefit and should be as fast or faster in target acquisition and provide better visual acuity. The crosshairs will also draw the eye to the target much quicker than trying to set up the rear sight, front sight, and the animal intent on winning the fight.

For me, I'd want a scope in detachable mounts and, if it gets damaged, I can take it off and still manage with open sights. Better still, have a back-up scope handy.

Practice mounting a properly fitted rifle with a scope while keeping both eyes open and you'll see what I mean.

There are many options and philosophies, but this would be my preference.