.............I enjoy shooting both a P-H Whitworth and a Rigby clone long range muzzle loaders, and have been dinking around for quite some time with various means of making consistent lube discs.
I'd made a lube extruder earlier using a front shock strut from an '87 Chevy Celebrity. It was a bunch of compromises, and while it worked it made my eyes bleed just simply looking at it. I finally broke down and made up a real one, above. The first cap made a .456" OD rod of lube which I'd cut using a razor blade. Not consistent enough, and as the lube is pretty soft even the razor blade would cause it to stick and get messed up to one degree or another. So I made the ribbon extruder top.
I'd extrude a piece 4" long onto a previously cut strip of parchment paper. I tried cutting them out with a common type wad punch, cutting through the paper and lube. Had to chill the lube for 30 minutes or so in the fridge for it to work. I say 'work' as it DID produce round wads but even hardened via the time in the fridge the paper would still push down the perimeter due to the wad punch before it'd cut the paper. Last week the wife and I were going to go visit my folks in Sierra Vista, AZ. They have a beautiful big range there, about 8 miles outside of town and a 600 yard bay normally used for Silhuette matches.
I figured I'd be able to spend a day there and REALLY wanted to excersize the Rigby. I'd had an idea spring into my noggin for a simple lube wad cutter that might work. The first one I made was in a really big hurry as I was supposed to be helping Donna getting some stuff ready to go and NOT out fooling around in the shop I cranked it out from a picture idea in my head, without any measurements using some handy steel scrap in about 30 minutes. I would have worked, but the range was closed on Monday and that was the only day nothing else was planned. As it turned out it was also the only day the wind wasn't blowing or it wasn't snowing
I figured brass would be better anyway so the day after getting home I made a better thought out wad cutter design. LEFT: The wadcutter body with the piston retracted. RIGHT: The piston fully extended. Retracted the piston face is about 1/4" inside the bore.
Works like a champ! The way I load the Rigby is after loading the charge, I run a lubed 1/8" felt wad down to the charge. Then wipe the bore. Instead of mucking around with trying to thumb stuck together odd shaped messed up lube wads into the muzzle, I can place a cardwad into the lubewad cutter then press the cutter down into the lube strip, place it over the muzzle and press them down. Since they're both slightly larger then the bore, the cutter can't push them both INTO the barrel. The lube wad will be in the bore but the cardwad will still have to be thumbed in, then both run home with the range rod.
I'm hoping that once done shooting I don't have to go home with lube on my pants, shirt, and in my hair & etc!
..............Buckshot