I have a BPCR with a MVA Buffalo Soule rear sight. It's design easily allows one MOA vertical adjustment, can fudge a 1/2 out of it it the difference is split from one staff mark to the next. Where I am going with this is that even with MOA and the rifle that it is on, I feel I shoot it pretty well,, but am I good enough to hold 1/4 MOA with it at whatever distance the targets are being engaged at. Nope. I wish it were otherwise. If someone can and needs that fine of adjustment on a barrel sight to take full advantage of their skill level, not being smart here, then dang, I am seriously impressed.