ToolMann
WKR
Alright guys, I'm completely befuddled here. I finally bought the Hornady headspace bushings as I'm working loads for my wife's new rifle. Never cared a ton about "bump" as I'm not a bench shooter and don't shoot a ton. But, I like nerding out and figured I'd play with the sizing die. But I'm getting equal or longer measurements on new/unfired/unsized brass when compared to fired brass. How is this possible? I admit I don't have the best set of calipers and if I push hard I can flex .001 to .002 out of it, but I'm being very careful and have measured a bunch of each for comparison. I'm seeing a .003ish bump on my sized brass, but have no idea how unfired brass can have more distance to the should than fired/unsized brass. Is it possible the shoulder angle changes and on the fired brass and the bushing is landing lower on the shoulder? Not sure it matters a ton as the comparison I'm looking for should be between fired/unsized and sized, but I'm losing my mind here. Any information that will help my brain slow down so I can sleep tonight would be appreciated.
TM
TM