Mine would have to be my Weatherby vanguard in .243, fitted with a 4x12x40 Pecar Berlin scope. Its the rifle on the right.
(WARNING) This picture is a little graphic.
This is me with 4 billy goats taken August last year. 2 were shot by me with my .243 and 2 shot my my mate using his Browning A-bolt in .300wm.
Range was about 160yds to 200yds.