Concentricity/runout gauge

[WKR]

Do you have one on the bench and does it get used?

 

[ResearchinStuff]

Not very often. Basically never once I'm confident in how a die sequence is working. Need to sell that thing actually

 

[VernAK]

I've got three and prefer the Sinclair. I use it every time I'm loading for target and predator rounds or smaller calibers. I check case and bullet run-out to check seating mostly. It's beneficial for comparing seating dies.
When shooting bench matches, I sorted for minimal run-out. I don't bother for large hunting calibers.

 

[Hondo64d]

Do you have one on the bench and does it get used?

I have the Sinclair runout gage and use it every single loading session. Minimal runout may not make a load shoot any better, I don’t know, but it sure won’t make it shoot any worse…

John