Hawkeye, I just would like to say that doing this kind of a job can get pricey, if you don't watch your P's & Q's closely. Gunsmithing is expensive quick like. I would go with a new barrel, before trying to rebore one. Two people I know did that were never really happy with the results later.
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<br>My brother did the conversion some years ago, but the labor was free really, his son was taking a course in gunsmithing etc. So he just had the price of the new barrel to contend with really. I believe that barrel was around $190 dollars then, which is cheap as opposed to a new rifle. Browning and Remington bolts are going for around the $650 mark and I know Winchester classics are in the $700 plus area.