Any particular bore scope you may recommend for that purpose? Those seem the doodad to have for inspecting everything about a barreled action, and they seem to be a heck of a lot more effective than the old test with a dummy cartridge at the muzzle.
I'll reach out to Mr. Skennertonto see what's available, but I will gladly pay for international postage if it means saving myself from buying a absurdly priced Volume I of "The Broad Arrow...." I figure knowledge is well worth the money, especially if it'll save time and cash on actual rifles.