Are there any tricks or pitfalls the be aware of when installing a drum on a little barrel - 3/4" straight octagon and .32 cal? It seems the commercially available drums are meant for larger barrels with wider flats. Should I not worry about it or find a friendly machinist to build a drum for me with small shoulders against the barrel and some form of broad flat for the nipple. I don't know how small is safe, but with a .32 how much powder and resulting pressure would I need to worry about anyway?
From a design perspective I was planning for a light weight squirrel/plinking rifle and put a Bedford lock or a Davis Becky's lock to keep things in proportion. Though it might be the Davis since the Bedford butt plate I have just doesn't fit my shoulder or upperarm at all.
Thanks for your suggestions,
Ken