Due to the current ammo emergency that has severely impacted the availability of .22 LR ammunition, consumers often or usually are restricted to .22LR ammunition currently on stock at various retail outlets or on-line outlets. (.22 LR tough to find so grab what is there)
.22 LR Blazers have always worked well for me up to 50 yards or so - real cheap about $25-$30/500, if avail. For improved accuracy go for the high grades of match ammo that your rifle/chamber likes. Many different brands - when avail, sample, then buy 1,000 or 2,000 (2-4 bricks) or so. The high price stuff costs over $25 per 50. My rifle likes sub sonic RWS Rifle Match .22LR, not that bad at just over $80 per/500. Bullet profiles (shapes) differ like CCI standard velocity compared to Blazer and your rifle chamber might have a preference.