If Townsend Whelen is right and "only accurate rifles are interesting", then my favorite rifle is very interesting.
A Savage 112BVSS in 22-250 REM wearing a 6-24x44 AO Nikko-Stirling Targetmaster scope.
My best effort was a 3/4" 5 shot group at 200yrds which would have been just over 1/2" but for a flyer. This was with 52gn flat base benchrest pills and a well developed load of W748.
"Normal" field load is a 55gn PSP over 36gn of AR2208 aka Varget for 3700fps which it will shoot into 1/2MOA all day.
(stock image, will try and dig out one of my actual rifle. Phartbucket has clobbered the one I would link)