"Likes" does not define a level of accuracy.
A five shot group is good; five 5-shot groups is better; five 10-shot groups is best. Which one would appear to have the greatest reliability?
Where you would like to be at would help us help you.
$5 a box ammo might work but CCI SV lacks consistency. When you find some that works to your satisfaction then buy a goodly supply.
Keep in mind the lot number on CCI SV only means something to the manufacturer.
There are suppliers that will assist you in testing ammunition and may be able to keep sufficient amounts when you do your testing quickly . . . maybe two weeks.
The SK line does that with SK Rifle match, SK standard and SK Magazine, all have the save velocity just price point is different and consistency gets better as you pay more. So I am now practicing with magazine and shoot ORPS with SK standard and CRPS with match