Most rebore shops will require that any rebore to .358 have a muzzle OD of at least .600", and will not rebore a chromed bore.
The least expensive is Jes Ocumpaugh, in Oregon (tel: 541-942-1342 ) - who uses three groove rifling and a six-week turn around by appointment only @ $225 paid in advance + shipping, as of last year, IIRC.
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