I had been advised to shoot it a lot before cleaning, like 250-500 rds. I found it to be absolutely true.

In fact a very qualified champion benchrest competitor told me I shouldn't expect really good accuracy until I get 20 rds. through her. He was absolutely correct.

I was also advised to stay away from Rem. Golden Bullets bulk pack. "They're dirty". That was spot on. My rifle shot them well but I even had to clean the clip with WD-40 to get it to feed properly afterwards.

Jag a dry patch every once in a while. If you change ammo, run a brush through with some solvent, then a patch with solvent, then jag dry patches til a clean one comes through.

It's been great advice that has been working for me from some super serious rimfire folks.