Someone had posted on this once before. Just can't find it. Will someone tell me the best way to turn a half moon nock without messing it up!!!
Shooting barnett 22in carbon, 3 out of 4 are hitting dead on, one shoots low right about 2 -3 in. Thanks

I don't think you will be able to adj the nock, but could solve the problem by re-fletching the arrow.