Originally Posted By: George L.
Bill: I'm looking at a couple of my 8 bore English guns: A J. Braddell and a J. Beattie and the breech walls on them are no thicker that what is shown on the E.M. Reilly. These guns were built for black powder, hence low pressures. Perhaps it was originally built in 4 bore.

Best Regards, George


I am glad to hear your 4 arrived safely. Do you have an overall weight for the gun and the weight and length of the barrels? Here is a chart from Frank Findlow's DGJ article Some Thoughts on 12 Bores". Eventhough it is not about 4 bores per se, I thought you might find the pressure table interesting. It looks like a very rewarding project, I envy you.