I've had two crack, both on the same rifle. Top part of ring cracked. Rifle lived a hard life in an ATV scabbard that was used everyday on the farm. Perhaps it was my fault for tightening to much or the receiver may have been off a little......maybe, but the same rifle has been used for a lot of years with DNZ mounts and currently a rail/rings with no problems.
I so want to use them on a couple of rifles to save weight and get a low height but I can't bring myself to trust them.
