AVOID Case head separation - SAFE RELOADING - check your brass

Case head separation and how to spot it with visual inspection. Once you deprime the brass, shine a light through the flash hole and look down the case mouth - then do the opposite. You'll be able to pick out annular defects in the case walls with your eye that you can't always feel with a feeler probe. Cutting open a few pieces gives the novice a chance to see what brass thinning and stretching looks like. Next time I'll go over measuring headspace dimensions on once-fired brass, and what that can tell you about the life of the case, and even something about the condition of the firearm that last used it.