Pre 1900 bore size
 

I just read on the previous thread, a comment on pre 1900 Parker's over bored.
I did not want to ask a question on someone else's thread.

I have two pre 1900 Parker's with Damascus barrels and they both measure .750 inside.
Is this normal ? I made the assumption that they were both reamed or "cleaned up "
Do they start off at .729 ?
Thanks, Tom

What are the serial numbers of these two guns? That is the first step in determining original bore size.

Thanks Dean

62698
15700

Tom, this chart will help you out.

Your two 12 gauge guns could easily have .750 original bores. Early tens often have bores of .790 or .800. Austin Hogan and I determined through much empirical research that some later guns, especially single trap guns, have original bores as large as .740.

Ok thanks guys
I feel better about them, I just assumed they were reamed and honed to clean them up before they were sold.
I have an awful lot to learn on these things.
Thanks, Tom