Just bought this same rifle about 3 months ago. This is the first write up I have found with some good data. I switched to a Boyd stock because the original plastic was kind of flimsy. Have a 6-24x40 Bushnell on it with 1" tall rings. I tested a bunch of ammo shooting 10 shot groups at 50 yards. Best groups were Wolf Match Target .270, SK Std+ .321 and Eley Club .345. CCI SV was a respectable .501. Have not tried more expensive brands. I am going to try 100 yds then 200 (have replaced rails with 20 MOA)