Maybe this belongs here. Need OD of Lyman 17a globe sight

[Lavan]

What is the OD of a Lyman 17a front globe sight?

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Measured at the non knurled body portion?

Thanks.
I'm trying to find inserts and I think my sight is a 17a. It is 9/16" diameter.

 

[Old Pete]

I have an old 17A that I removed from a 1930's vintage Winchester 52 target rifle. The O.D. of the tube is 0.530".

Pete

 

[Lavan]

Ole Pete.......XXXXXXOOOOOOOXXXXXXOOOOOOO

Then that's what I GOT. Whoopie! Wouldn't you think Brownells or SOMEBODY who sells the inserts would list the size?