Antique 12Ga shotgun

[Blogman]

I have an antique double barrel shotgun with the measurements of...
The right one sizes at 0.76.10" or 49/64" or 19.34 mm
Left one is 0.75.10" or 3/4" or 19 mm
Both will take a 12 gauge or a .69 cal rb with plenty of room to spare.
Being that the barrel is ancient and probably made larger, is the additional room/circumference made for ticking patch balls. I tried a patch and they do snug it up a bit.
What are your thoughts. Thanks.

 

[Blogman]

8Bore, where ya at Bub.

 

[bang]

Seems like 10g and if measured at bore only possibly choke.

 

[Grenadier1758]

An 11 gauge ball will measure 0.750", so your bore diameter is closest to 11 gauge. A 0.750"ball will weigh 636 grains of pure lead or 1.45 ounces.

10 gauge is 0.775".

To use your shotgun, get the 11gauge wads and cards. Stick with shot and loads less that 1 1/4 ounces of shot.

 

[Blogman]

Sweet, even better. Thank you gentlemen. I think I will settle on an 11 gauge.

 

[Feltwad]

It looks like a 11 bore or a oversize 12 most likely it will have Damascus barrels and could be English or Belgium my advise stick with a shot load.
Feltwad

 

[Mulebrain]

I have an antique double barrel shotgun with the measurements of...
The right one sizes at 0.76.10" or 49/64" or 19.34 mm
Left one is 0.75.10" or 3/4" or 19 mm
Both will take a 12 gauge or a .69 cal rb with plenty of room to spare.
Being that the barrel is ancient and probably made larger, is the additional room/circumference made for ticking patch balls. I tried a patch and they do snug it up a bit.
What are your thoughts. Thanks.

I would advise getting any antique shotgun like that, checked out by a gunsmith before firing it

 

[Blogman]

I heard what you're saying. I called a good friend (shop and gunsmith), he looked it over and said: "Go fire it up bud."
Shot four .69s and four sets of buck 7 &1/2, great pattern and .69s fell were I needed em.
I'll keep her for now.