King of the Hill: Lapua X-Act (~$25 per box of 50rds)
1st Tier: Lapua Midas+, RWS R50, Eley Tenex EPS
2nd Tier: Lapua Center-X, RWS Rifle Match (yellow box), Eley Match EPS
3rd Tier: The others
There really isn't much of a difference between 1st Tier & 2nd Tier because they all come from the same factory and same machines (e.g., Lapua Midas+ & Center-X, RWS R50 & Rifle Match, Eley Tenex & Match). Only the lots are different. The lots that shoot better in the factory barrels are graded the higher tier.
The 22LR is a unique animal in that the particular brand and particular lot would shoot good in one rifle, but not in another rifle.
You just have to try. Thus, the neverending chase to find the "best ammo" for your rifle.............