.243 for deer. It has it's place, for those that know what they're doing and need what it offers - fast fragmenting bullets in light weights.
Better to play it safe, and have more than you need. Better to be overgunned, you can't get too dead etc. etc.
Go for 6.5 minimum, maybe even 7mm for a capable allrounder, as I told you on another thread.
Much more important is the correct bullet construction for the quarry species and the type of shot you are wishing to achieve.
If you are trying to chest shoot a woodland stag during the rut, then you may want a different bullet to someone neck shooting roe.
High for weight 6.5 x 55 bullets are intended for large quarry for example Elk and Boar, try shooting a roe the size of a labrador and you might find the lack of expansion causes you problems. Reputations are hard won and quickly lost, if you have injured deer running around the place, chances are neighbouring landowners/stalkers will soon get to know who farked up.
I know some people swear by a-max for deer, but that my stripey friend is another matter entirely!
