"If put together well they can be accurate....."
They are not put together well, no matter how you look at them... Sloppy bedding, Sloppy barrel connection, sloppy bolt fit, sloppy trigger block to receiver fit, sloppy everything, not a paper punching competition rifle, never will be.
It was never designed to be. The crowd selling "Target" barrels and aftermaket receivers are raking in money... I am surprised I don't see the wonder word Billet used more on 10/22 stuff.....
Just the rapid cycling and feeding from the magazine of a semi auto is enough to distort the fragile individually packed soft lead bullet of expensive target ammo...thus knocking that last shot .010 out of place. Simple enough to observe, (follow proper safety procedures) and examine a chambered bullet tip fed from magazine into chamber. You can then measure runout of bullet to case....
One ragged hole vs 1 hole counts in competition..
Not that one won't shoot well, but think what the group of a purpose built target action can do....
10/22 + target barrel + trigger job + bedding +stock = Plinker that costs almost as much as a TARGET RIFLE.
Show me a trophy won at a major rifle match, (Accuracy dependant, not broad as a ram or other steel target) won by a 10/22....
Super expensive target ammo is just a waste of money in a 10/22. Shoot various brands of normal and mid range stuff, pick the best shooting, and be happy with your hotrod plinker.
Eley Tenex has a great reputation and is up there quality wise... Each rifle is different and only a lot of range time can settle the debate for any individual rifle... Of course after several thousand rounds, chamber throat erosion/wear will require you to search for a new best shooting load..