Looks like LRF has you covered.

I'd trust his measurements as he is a machinist of considerable skill.

I presume the measurements are from a stutzen (full stocked carbine)?

Be aware, also, that some MS had rebated front sights. I am uncertain if they left the Steyr factory so configured or if it was a 'British' modification?

Note 'set back' of front sight from muzzle on this M1910 Take Down Model

Sight parts from '39 Stoeger:

Barrel profile detail: