I don’t know if this is considered a full tutorial or just a very helpful post, but there’s this only one rifling help with full pics and help on this forum, but it was made in 2013 and all the image data was lost. I would like to see it done again. Or if there are any better tutorial/help, please post it here too! I’ve been modeling for small arms and cannons and would love the most efficient way to rifle. There’s unfortunately very little tutorials to do it around the web.