The easiest way to mark the extraction groove on your rifle brass!
The “V-Channel” design allows for easy consistent marking from .223 brass all the way up through .338 brass. Thumbscrews are possible via the brass inserts which are heat pressed into the body and allow for quick and easy adjustment of sharpie depth. This version is designed to specifically target the extraction groove on your rifle brass.
NOTE: These WILL work successfully with 6BR, dasher, and other shorter cased brass.