The 243 will be a very good round for deer and hogs down your way.
Up here we use it for fox , yotes and groundhogs . Ohio doesn't let us hunt deer with a rifle .
You may have to play with it a little till it finds a load that it likes . but it will do a nice job .
PS -- now you did it , its like cookies you start with one and the next thing you know the crumbs are al-over the place , welcome a new handi-holic :-D :-D