I bought one last year off of the EE for $235 with two mags. It is in VG condtion and the extra mag is worth $45.
I have only shot inexpensive std vel ammo in mine but I am pleased with the groups at 25 yards and 50 yards. I won't quote the group size because I was shooting off hand in the rimfire matches and did okay. I intend to sight it in at 100 yards with the receiver sights to practice four position target shooting or fun. I also intend to try some match ammo.
You might want to check out the Mossberg section on the Rimfire Central web site.