Just for your info…whilst on holiday I bought a ‘Posh’ snuff bullet. This is a stainless steel afair with a single screw holding the bottom on. After two days of ordinary use, the female part of the assembly had de-threaded making it un-useable. I emphasise that I didn’t do anything to make this happen and know how to use a screw driver. I may have got a faulty one and the rest are great but ended up throwing mine away as by the time it broke I was several hundred miles away from the shop and generally couldn’t be bothered etc etc. It seems like a design fault with the metal in the barrel of the unit possibly being of too soft a type, I don’t know but I would suggest not buying this article…
I have two of the type you describe for over 6 months and so far no problems. I think your must have been faulty, snuffster. A tip for anyone filling this type of bullet, always temporally replace the screw in order not to get snuff down the screw hole.
The press in type with O’rings work very well.