You have to find what your rifle likes...give me a second...hmmmm.
Okay, what does my rifle like? Not really sure... I tried them all.
Well, I know what it doesn't like.
Large differences in muzzle velocities caused by variations in primer amounts.
Fail to fires caused by lack of primer in the rim.
Case ruptures due to brass defects.
Out of spec cartridge dimensions that won't allow chambering, or are loose in the chamber.
Poorly seated bullets that are tilted relative to the centerline of the cartridge.
Dented or stovepiped cartridges.
Bullets which are dented, dinged, scratched, damaged with smeared driving bands/cannelures.
Bullets with damaged heels. No, you can't see the heels, but if the nose is beat to heck, so is the heel.
Poorly crimped cartridges, that change the shape of the bullet.
So by knowing what my rifle doesn't like, how do I find what it does like?
I really have tried them all. Every brand of 22lr available.
From the absolute cr*p to the most expensive made.
What my rifle likes is cartridges with the least amount of defects
and extremely tight muzzle velocities. Buying by brand hasn't been useful.
A brick of brand "A" that was purchased last month, produced outstanding results.
The brick purchased to replace it is barely plinking ammo.
Finding well made 22lr seems to be a problem.
No two boxes are the same, or produce the same results,
unless I keep my targets really close to the muzzle.