Thank's @
Gibo... (O: He heh heh!
While
thinking too much I just masking tape "paper" patched thirty 155grain copper electroplated boolits from Gunworks, to go in my No 4 two-groove. Bore slugged at .304 at throat and muzzle alike, grooves .317". Bare bullets measure .307" and are patched to .316". I'll shoot some patched, some bare.
The .307 unpatched ones will likely do just fine, something to hope for as I just managed not to slice my fingers with the craft knife doing those thirty. Even if my job was minimum wage it would not be worth all this fiddling to make cheaper bullets... but it's the fun.
Just realised... I forgot to weigh them all first. Drat!!!