I'm sorry friends, but I've had to put this gas check maker project on a back burner for the forseeable future, but haven't had time to delete it from the forum or notify all you have have responded with interest. One reason for laying it back was not enough interest, which may change in time. Please see my last post on this topic.
I have been debating the manufacture of a gas check maker which mounts in and is powered by a standard reloading press and uses the new 24 oz beer cans for material. (They are thicker than the smaller cans, with work fine but are a bit dainty.)
To make checks with this tool, strips which are cut from the side metal from the cans, is fed through a slot, the checks being punched out and formed in one stroke of the press. The checks are colledted in the hollow punch, which is removed from the press just as you'd remove a sized cartridge case, and the checks poured out into a container. The prototype which I made, produces close to 1000 in an hour after the strips are cut and ready, and the tube of this unit hold about 10 checks. This means, remove and dump the checks that often. I may be able to up capacity of the tube some.
Ideally the customer would purchase a mold specivically for these checks. This means the base band would be cut about .004 smaller than sizer diameter, so hard bullets can be checked without shearing the checks. Or the same checks will fit any plainbase mold of the caliber and will size on without shearing if sizing is done while bullet hardness is below about 16 bhn. This means those using the most popular alloy today, whcih is water quenched wheel weights, would have to remove bullets from the water, blow them dry and size within a maximum time of about 2 to 3 hours after casting, or any time shorter. Also the checks will not give full performance if an existing plain base mold has a base band which is wider the the checks will cover. Performance increase will be very worthwile, but the base band must be a pecise length to get optimum performance the these thin aluminum checks, with a grease groove forward of the check to collect lead scrapings.
If interested in such a tool, please email me at LBTisAccuracy@Imbris.net. I expect the price will have to be at least $150 per tool, which will be high quality heat treated tool steel, capable of very long life. And I would only produce the most popular calibers, at first at least. 38 44 45 One body will make (maybe 41), 44 and 45, both rifle and pistol, but will require two extra internal forming parts for each caliber., which would raise the price some. Ditto the other calibers. In other words, probably 4 to 6 bodies will cut blanks for all calibers from 22 to 50. This body is the part that screws into the press. One of the forming parts will be inserted like a cartridge into a reloading die, taken out and dumped when full of checks, the other will be locked into the top of the body and would be changed to switch calibers. I will experiment with feeding multiple layers of metal through to see if it will produce stacked checks which will fit standard gas check shanks. Performance has already been proven with the free check makers, but production with my tool is the concern here. If you email me, I'll respond after perhaps three weeks with an answer of whether demand warants production.
I've sat on this idea for approximately 20 years, my friends. I was already busy then, and not really excited about the thin aluminum stock. Business is slack enough now to consider it, and the new, and very abundant 24 oz cans make the concept quite attractive.
I made a serious typo error above yesterday, when I originally wrote this, by leaving a 0 off the price! And got quite a flood of responses! $15 would certainly be an attractive price but at todays prices, tool steel, heat treatment and the precision grinding required (which I don't have the equipment for) to make what I'm promising will cost me probably $40 each at least, plus all my own machining time, as I'll be doing all the rest. So I can't appoligize for the price. It is a Rolls Royce tool that will be a pleasure to use and FAST.
I believe it will be workable to ream the check shanks on customer molds to suit a single check. Probably all molds except Lee, if they don't have too short a check shank. I'll ruin a few molds for friends before I take this on for sure, because I don't sell anything that isn't tried and true..