[John Sabato]

Viggo, please do contact the ATF about the barrel change. It only takes a few minutes and having documentation that you can share with others makes it very worthwhile...

I agree with Dwight that as long as the replacement barrel is a "repair", the caliber should be immaterial to the ATF decision on C&R Status.

Dwight, Do you have a micrometer? or a digital caliber? Just how large is the diameter of the pencil barrel at it's smallest point (probably right behind the front sight base band...) ?

Without measuring, I would guess that relining is possible with the right equipment because the liner is just a bit larger than the bore.

I have not relined anything but .22's in my history, but any good machinist should be able to conquer this task if he has the right machinery...

If I were to attempt such a task, I would precision ream the bore to the diameter of the liner but only up to the original chamber leaving it intact... but others would ream the whole barrel and then rechamber... I wouldn't want to experiment on the one barrel I wanted to end up with. I would buy a couple of shot out barrels to experiment with first.

If you can't find a decent .30 liner to meet your needs, you can turn one out of a surplus 7.65mm mauser (Argentine model) barrel and have plenty for your experiment. You could always save the original barrel to restore the gun if you wish.

Please keep us advised on your project.