Comments on: Measuring Shoulder "Bump" with Harrell’s Case Collar

By: Brown274

Brown274 — Mon, 10 Aug 2015 19:43:23 +0000

Is the tool that Whidden give you with his dies similar to this?

By: David Ingram

David Ingram — Thu, 24 Jan 2008 12:14:27 +0000

This is a great tool.
If I would have known such a tool was
available it would have saved me a lot of
time and money.
I have had a machine shop making them for me
for over 10 years now. I have them for every
calibre I reload.
If you use them with Redding competition
shell holders you cad achieve the right
amount of bump back.

By: Boyd Allen

Boyd Allen — Sun, 20 Jan 2008 17:02:53 +0000

One more tip: Use a punch and base, decapping tool or die to remove the fired primer before taking the initial measurement. When working to thousandths, even a slight crater can throw you off by a significant amount.