JANSSEN GAUGE CHANGE

Question

Picked up an old Janssen side by side rabbit ears 12 ga. Going to do a little learning with it. It has Damascus barrels and I was wondering if it’s possible to sleeve or reline the barrels to a smaller gauge, so it could be useable with today’s cartridges. Never seen any info on this and none of my friends or local smiths have any knowledge. I figured going to the best source (you guys) might enlighten me some. Thanks in advance for the trouble of reading this.

Answer

Yeah you can fabricate sleeves for those and it doesn’t have to be shotgun barrels. You could fabricate sleeves out of rifled barrels and chamber to low pressure cartridges.