Mark - Since, you are going to the effort of 'stepping' the muzzle area of this Krag barrel, I would recommend you install a 1903 Springfield front-sight base. That arrangement will simply look nicer than a '03A3 sight.

Buried somewhere on the KCA threads is material on making a barrel vise and an action wrench. IMHO - For your project, this would be overkill.

If I had access to a lathe, I would 'Chuck' the barrel (protected with some tape wraps) and support the barrel with the 'tail-stock' fixture at the bore's crown. (I'm sure some protective brass or plastic bushing could be improvised).

(The action could be left on the barrel, projecting out of the lathe).

I would turn things at a slow speed and use a File to form a step at the muzzle area, measuring my progress frequently.

p.s. I was born in Detroit and grew up and live in Oakland Co.

Go Broncos!

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