99.9999999% I've heard great things about JES rebore. However, years ago, I bought a Rem760 from JES that was rebored to 9.3x62. Very cool in theory but I had issues getting it to shoot. Long story short, after multiple factory ammo and reloads, I bought a No GO gauge...... and it chambered. I cant say I know what that means 100% but it spooked me enough to swear-off ever buying or ever having a rebore done or owning one.

That said...I sold the rifle to someone who had more faith than I......and I wish I still had the rifle to continue the detective work....