|I have been using these and the blue ones sold here @ cheaperthandirt for my accuracy testing for match-grade .22 LR Ruger 10/22's.
I use a Neil Jones Custom products .22 accuracy gauge to measure rim thickness (headspace) and shoot groups of same size ammo.
- These boxes facilitate sorting in a neat & orderly manor. The sorting does make a difference even using match grade ammo, and these boxes are just the ticket. - I just wish that there were more in-stock more often.