All those I have known who have had by-pass surgery still hunted and went to the ranges. I never asked them about how long they waited until restarting their shooting. I have noticed one thing however, their mobility is much more limited than before. No more long hunts or hill scaling. They hunt closer to camp and in a less rugged terrain. They also use natural blinds. I wouldn't dispose of the ol' 06 yet. At least not until you have taken her hunting once.
No such thing as a stupid question. What is stupid is not asking it.