New Hammer Gun!

[B. Dudley]

Very nice! In seemingly great condition.

[charlie cleveland]

in other words a 10b chambered gun will not chamber a paper or plastic hull is this correct....what was the purpose of the 10 b chambered guns.... charlie

[Roundsworth]

Charlie, I really don't know what the real story is on the 'A' and 'B' shells. I went through my brass shells and found a 12B, but no 10B. I can still take photos to show the differences with the 12s. I recall reading a passage somewhere that stated that the inside diameter of the paper hull is the same as the inside diameter of the 'B' brass. So, maybe the bore of a 'B' gun is more along the lines of our modern, standardized bore, and the 'A' bore is/can be much larger.

[Roundsworth]

I made some rudimentary measurements of the bores on my hammer gun and came up with .808" for the bores just ahead of the chambers, and .759" for both chokes. She's choked pretty tight! These are very svelte barrels, given the unstruck weight of only 5 pounds and 30" length. They taper down quickly, just beyond the chambers. I wonder if a letter would say if someone ordered the gun to be light?

[10 bore]

does any one know what the size of chamber dia from A shell and B shell is? and can the smaller chamber be reamed to fit the larger shells?(todays shells) thanks scott

[Roundsworth]

These are chamber dimensions from the 1870s era Parkers:

10A - .845" to .860" diameter

10B - .815" to .825" diameter

[ch]

Mark did you look at the 3 frame 10? its bottom of salelist. best ch

[Roundsworth]

Calvin, I did not look at any more guns. I had a budget, and did not want to tempt fate by looking at other 10s!