Shotgun Barrel Compatibility: 12 Gauge vs. 20 Gauge - Expert Advice

Question
I have a shot gun single shot from brazil that has a messed up baerral. I found a barrel for a 20 gage but i have a 12. I was wondering if they would inter change. I can not finde any othere markings other than that. If it will help you i have numbers 656745 model sb.

thank you


Answer
Without a manufacturer I can't ID it.
Try calling Gunparts.
Have the gun in front of you when you call.
http://www.e-gunparts.com/
Keep mind in most a break open shotgun needs a barrel to be hand fitted.
If you need to have hand fitted then likily just buy new USA made H&R
single shot.