Wow ...some good answers . Way I do it ... I start with a 1/2" hickory ramrod and taper it with a rasp ..When I first start on the small end ...when I get it close to 3/8 or so I use my rough wood file that has a safe side on it ... With it I file the end for the 5/16" brass tip to fit ....I mark the depth inside of tip onto the ramrod ....with safe side at the mark I file around the rod ...fitting to the threaded brass tip as I go . When it slips on then I scratch in the tip , for better grip from epoxy ....mix slow setvepoxy and put tip on , drill the tip and put in a pin and peen both ends of pin ...then I go back to rasping the rod .... I rasp it using a ramrod pipe to gauge it . I lay it on the stock and mark last ramrod pipe . Beyond that mark the ramrod quickly tapered to 1/2" . Tapered ramrods are great for loading . When I get to that mark then I have to try the.rod in the gun ...unusually have to mark the length of the ramrod hole on the rod and take extra off till it'll go in the fore stock .. Then sand it to clean up rasp marks and slide easy down pipes and forearm ....usually takes 2-2.5 hours ... They are a chore but are great and look wonderful .