Over the years I have found that every single .22 weapon is different and each gun will shoot better with one make/type of .22 ammo over all others. I have found the best way to test for accuracy is to obtain as many readily available makes of .22 ammo as you can, sand bag rest your gun, really take your time, and shoot groups for accuracy. I have one particular Marlin scoped heavy barrel bolt action which, (after testing 10 different makes of ammo), drives tacks only with cheap bulk Winchester 550 pk. Hollow Points from Wally-World. It is the most accurate .22 I've ever owned. Frankly, for can plinking and general shooting, I use anything available thats bulk & cheap.