BMT:
I have been following so many threads my old brain is overwhelmed but... I think BT posted that this slug runs around 0.727", undersize a bit anyway I am pretty sure.
I have an oversize smoothbore I'll be shooting them in so I may try paper patching though paper patch may not survive opening the crimp and the jump through the forcing cone. I can also knurl up then size back to my bore size... if they will knurl that far. I can make them bigger by several thou anyway.
I have not used HS6 as there hasn't been any available locally, when I have looked anyway. I do have some Blue Dot and so far it is my favourite slug powder, at least for heavy slugs.
I'll weigh these slugs complete but am betting the Precision Rifle data for their 610 gr. Piledriver will be about right for these. That load info is in post #27 if you haven't seen it.
I lean towards the Tusker clone though both that and the Paradox are nice designs to my eyes and the moulds appear to be of good quality. I will certainly enjoy testing these.
Longbow