My best shooting rimfire auto is a 10/22, but its far from stock. You could buy a very nice Anschutz for what it cost to build it.
Before that my best was a Remington 552 Speedmaster, cycles everything, shoulders fast/points like a shotgun and is very very accurate.
I grew up shooting a Nylon 66. They were inexpensive back then, reliable, accurate and FUN.
For the money, I'd say the best of the 3 is a 552. The deluxe version is pretty good looking too.
And the 552's actually DO cycle shorts, longs and long rifle ammo. From a tube mag though. People seem to have strong feelings about tube mags both for and against.
