I happily own a Cooper in .204 Ruger. Its my 2nd .204...the first was a Ruger #1, but I grew to not like the feel of the rifle. However I was so happy with the performance of the 204 I sold it and got this one.
If you took all my 3 shot groups (from after the barrel break in) and over laid them on top of one another, you will find that 15 out of 20 rounds will form a neat little bugeye hole. I consider the others "user error".
Granted that is from a very nice rifle with a very nice scope, its good. Again, I consider that one shot as my fault.....oh ya....that is
factory Hornady 32 grain ammo.
Its not a cheap gun to shoot though, but neither is .223 if you shoot GOOD ammo. 204 just doens't have the option for cheap crap....yet.
It shoots very good up to 300 yards. (I haven't shot further yet with it) If I were shooting 500
consistantly, I would skip both and go to the 22-250 for the wind bucking.
Oh ya....one more thing. Even though I like the 204 more than the 223, I consider something more important since you want a target rifle....
Get the best rifle you can afford and don't skimp on the scope.