Picked up a old shotgun..
- Thread starter pabirdman
- Start date
If you have an older side by side, some have that info on the barrel in a spot you can't see until you break the shotgun down. If it simply isn't stamped anywhere on the barrel, then take it in to a gun shop, they can drop a guage into the barrel and tell you what it's chambered in. Also get them to check what choke the barrel(s) has/have (if any).
This will take another gun 2 3/4" or 3".....take a loaded 3 1/2" shell and try it in the chamber of new gun, do this in a safe place and do not close the action. Mark on the shell how much protrudes out of the chamber. Next try the 3 1/2" shell in the other gun of known chamber length, it won't take a rocket surgeon to determine unknown chamber length.
I’m doing this from memory, so correct me if I’m wrong. If the gun is of European manufacture it may be marked in mm. i.e. 2 –3/4” may say 70? (mm) or 3” may say 77? (mm), followed by the dimension of the choke. You may need to partially dissemble the gun to read these, as they could be printed on the underside of the barrels.
I think you are right sallen, if it's European it might have 12/65(2 1/2")or 12/70 (2 3/4") or even 12/76 (3") stamped somewhere to indicate the gage and chamber length.
SH
If you are planning on getting into old shotguns then it would be worth your while picking up a chamber gauge. Brownell's sells then for about $20 h ttp://www.brownells.com/aspx/ns/store/ProductDetail.aspx?p=593&title=SHOTGUN%20CHAMBER%20GAUGE Definately worth getting one or more in your favorite gauge and keeping handy especially if you are going to a gun show. Sometimes you can get a gun cheaper if you can show that it has short chambers! 
- Location
- London,Ontario
Your probably lookin 2 3/4
Is there not any info on the barrel?
Is there not any info on the barrel?
