I've done this twice in the last twenty or so years, the last time was about five or six years ago - I got at least a few boxes each of around twenty-five .22 LR ammos. None of the ammos were the expensive target stuff.
I used at least two good quality (non-target) scoped rifles and two good quality handguns with adjustable rear sights. I fired five, five shot benchrested groups with each ammo in each gun; 50 yards for the rifles and twenty-five yards for the handguns, and compared accuracy figures.
Lot of work, yes, but I enjoy this and the results really tell you a lot. The weak point in testing the real cheap bulk stuff is that production runs from one batch to another may be and often are very inconsistent. One will shoot pretty well while the next lot will do poorly.
A few ammos, like CCI SV, will almost always do reasonably well regardless of what they are fired in. It won't be the most accurate in every gun, but it will often be more accurate in a large number of guns that just about anything else in the affordable price range of .22 ammos. Testing may reveal two or three others that will be close to or even equal CCI SV.
People will continue to buy the trash ammo and continue to complain about poor accuracy, jamming, duds, etc. regardless of good advice to the contrary. All to "save" a dollar or two. Is that really saving? Do your own testing. You'll find it's worth it to spend a little more and get good ammo.