When I was looking into a situation....
....requiring the measring of the chambers, I looked unsuccessfully for gages small enough to fit inside a .31 caliber chamber.
Actually the situation was very similar to this one. I could not get balls to fit my 1863 Remingtons. Having bought the .315 mold, I was getting the same problem that Craig is having.
Anyway, I tried several places looking for gage sets that would work inside a .31 and found nothing at anything like a reasonable price.
Any leads, tips or suggestions?
My reading of history convinces me that most bad government results from too much government. Thomas Jefferson