RE: .243 for deer
There is no doubt that a well placed shot is the key nio matter what you shoot. I only point I was trying to make is that sometimes a heavier bullet will reach those vitals that may not be reached with lighter bullets. That on poor shot angles or big bones to shoot through. I say this because I have seen it happen quite a few times where light bullets do not penetrate tough shoulders and such. If you pass on those shots and can always wait for the right angle and a clear shot at the vitals then its a mute point. Hunt long enough and you will see what I mean. If I had nothing else I would surely hunt deer with the 6MM Remington. I just have many better choices.