If you've been using that scope for a while and can consistantly hit what you aim at at 200 to300 yds then why change, however, if you are unable to get a good group at that distance then probably a new scope won't be much better.not everyone can shoot effectively at that distance, and then you mix in wind/rain/snow/cold and it really gets interesting. the good news is that you will probably see so many caribou that you will be successful. I hunted way south of shefferville and actually had to take a step back if i wanted to shoot because there were so many caribou so close, good hunting