Welcomoe to the board. It' s great to welcome another female huntress. If we get more huntress' involved ion the sport, then the male will come as well.

Anyway, If I were you I would go with the 260 and then the 243. You will want to go to a gun store and see what model fits you the best. The caliber is secondary. If you do not have a gun that fits you, then you will not want to shoot it. Once you find the gun that fits you the best, the one that just snaps right to your shoulder (you' ll recognize it when you find the one), then talk to the dealer about calibers.

That' s my 2 cents worth,
Matt