.357 Gas Check Making Tool

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David Wile

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Jan 4, 2003
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634
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Mechanicsburg, PA
Hey folks,

I recently bought one of Charlie Darnall's .357 gas check making tools from him on E-Bay. I paid for it immediately, and Charlie sent it out to me just as immediately. I was eager to start using it and got a thin sheet of virgin lead to cut the discs from an aluminum soda can. Then I thought of using a hard rubber pad I use to do leather work instead of the lead sheet. While Charlie's instructions recommended a lead slab, I found the hard rubber pad to work very well for me.

Right away I was cutting perfect discs with the punch Charlie provided, and I quickly cut about thirty or so of them. The kit also contains an anvil into which the disc is placed, and a mandrel which is then used to punch the disc trough the anvil and form its final shape. I placed my first disc as closely as I could in the center of the anvil and punched it through with the mandrel. My gas check was a bust. It was not centered in the anvil and came out all wrong. I tried a dozen or so of my discs, but none of them made a good gas check. Yes, I read the directions, but something was wrong.

I thought my discs were too small for the anvil and gave Charlie a call to ask what the problem might be. We talked for quite some time about everything related to the gas check tool, and I wanted to try some more things to see if I could get it right. Charlie insisted on sending me a whole new tool set to try, and I received it two days later. When I opened the package, I noticed that Charlie had inserted the mandrel in the anvil in a different manner than I was using my first set. Suddenly I started to wonder if I was using the tool the wrong way.

I pulled the new tool set mandrel out of the anvil and checked the anvil from that end. Well, talk about being ashamed and dumb - I immediately realized I had been putting my discs in the wrong end of the anvil. I had been putting the discs in the bottom end of the anvil, and that was why the discs did not seem big enough for the anvil and moved around so much.

Using my original tool set, I put a disc in the correct end of the anvil, placed the mandrel in place, and a gentle tap with a plastic mallet produced a perfect .357 gas check that fits my Lyman 155 gr. bullets perfectly. I made several more perfect gas checks with my original tool to make sure I was doing it right, and then I made a bunch of gas checks with the new tool Charlie had sent me at no cost. All my gaschecks come out of the bottom of the anvil perfect, and they fit my #358156 cast bullets perfectly. I use my Lyman 45 Lubrisizer to seat the gascheck, size, and lube the bullets. In using them, I see no difference between my hand made gas checks and the ones I have always purchased from Lyman or Hornady.

I had to call Charlie and tell him that I now had two perfectly good .357 gas check tools because of my dumbness - and I only paid him for one! Charlie was as gracious as could be and didn't even make fun of me. I offered to send one of thea tool sets back to him, but he told me not to bother. Charlie Darnall is one square shooter.

I then offered to resell one of the .357 tools on E-Bay and send him the money, but he said I was welcome to sell the tool and keep the money. I told him that I could not do that to him and that I would be happy to sell the tool, ship it to whoever buys it and send the money to him. He really is a good guy, and his tool really does make excellent gas checks. I intend to bid on .30, .44 Mag, and .45 calibers as soon as he starts selling again.

In the meantime, if anyone is interested in buying one of Charlie's .357 gas check tools that I know works perfectly, I will be glad to ship it and send the money to Charlie. My E-Mail address is [email protected] , and my home phone number is 717-766-1026. Please feel free to contact me if you have any questions about Charlie's tool set.

Best wishes,
Dave Wile
 
Dave,

That's an excellent post, and it's nice to know that Charlie stands behind his product. It's also good information that the tool actually works as advertised.

Thank you for the information.

Fred
 
Where do you get the copper sheet to make the gas checks out of?

Any estimate of what they cost when you get done making them?

rcmodel
 
I can't find the gas check makers any longer on ebay...I thought they were more hype than practical. Does Charlie have a web page and offer tools for other calibers?
 
Hey folks,

To RC: "Where do you get the copper sheet to make the gas checks out of? Any estimate of what they cost when you get done making them?" Most of the folks cut the top and bottom off an aluminum soda can, cut up one side, and then cut their discs from the flat side of the can. So far, I know the aluminum works just fine on my .357 bullets. I have also heard of some folks buying copper sheet material to cut their discs, but Charlie says you should use a higher grade of punch to cut the copper. He supplies a Chinese punch with his tool set and it works quite well with aluminum cans. I intend to try his tool sets for 30, 44, and 45 caliber as soon as he puts them up for sale on E-Bay. If the aluminum checks work for those calibers, I won't bother with copper sheet material. So other than the cost of the tool set, there is no additional cost if you use old aluminum cans.

To JR45: "I can't find the gas check makers any longer on ebay...I thought they were more hype than practical. Does Charlie have a web page and offer tools for other calibers?" The only place Charlie sells his tool sets is on E-Bay, and lots of folks have tried to buy direct, but he won't do it. At the present time, he does not have any on sale, but he will probably get some available in a week or two. Set up an E-Bay search for Gas Check Tool, mark it to leave you a E-Mail message, and you will be notified when Charlie gets some back on sale.

To Floppy_D: "...does he offer it in .430?" If I understand you correctly, you are probably asking about gas checks for 44 caliber bullets which are .429 in jacketed. If that is correct, then yes he does make a tool set for the 44 Special and 44 Mag. He also makes tool sets for .30 and .45 caliber that I know for sure, and I have also seen some others which I have not paid any attention since I did not use them. I think they may have been 7MM and 8MM, but I am not sure about them.

At the price of gas checks these days, this tool set I got for .357 is simply great. It is kind of slow going, but then again there is a lot of slow going about reloading ammo - especially if you are using cast bullets. I found I could sit in my recliner chair watching TV while I cut discs from cans and then formed the discs into gas checks.

In case anyone is wondering, I am not a spokesman for Charlie Darnall. I bought one of his tool sets and found out it worked great after I learned what I was doing wrong. I also found out Charlie is really a good guy after talking to him a number of times.

Best wishes,
Dave Wile
 
Dang!

I have Nitro powder solvent.
And Foaming Bore Cleaner solvent.
And CLP solvent.
And Copper solvent.
And Plastic Shotgun Wad solvent.

Now you're telling me I got to have Aluminum Beer Can solvent too? :what:

rcmodel
 
Hey RC,

I don't think you need any special solvent for aluminum gas checks. I have not had any problem with the bore of my pistol since using them. This was a topic over on the Cast Boolits forum some time ago, but most folks found the aluminum was not notable in any way. Several have reported good results with rifle usage and aluminum gas checks, but there have also been others reporting good results using copper sheet metal. When I get a tool set for my 45-70, I will at least try using the aluminum checks. Remember, the aluminum cans are covered inside and out with some finish to keep the aluminum from oxidizing and changing the taste of the product. All I can say is that it seems mighty good for my .357.

If you happen to give them a try, let us know how you make out.

Best wishes,
Dave Wile
 
Nobody said "beer" cans, rcmodel. :D

I'm interested in one and can't find them on ebay... google didn't turn up much, do you know how else to order one?
 
Hey folks,

Beer cans, soda cans, as long as they are aluminum.

Charlie Darnell only sells his tool sets on E-Bay. You can try to buy them direct, but a lot of folks have tried and he just will not do it. At the present time, he does not have any on sale, but he will probably get some available in a week or two. When I last talked to him a couple of days ago, he said he had some family things that he had to take care of for a while. My suggestion is to set up an E-Bay search for Gas Check Tool, mark it to leave you a E-Mail message, and you will be notified when Charlie gets some back on sale.

To RC: the tool sets are pretty simple at first glance. A punch that cuts an aluminum disc, a die (or anvil) that accepts the disc for forming, and a mandrel that fits in the die/anvil and punches the disc into the final gas check shape. Charlie machines the die/anvil as well as the mandrel from stock steel to make the proper shape. Then he heat treats all three parts to harden them. The punch is also sharpened. Me, I'm not a machinist, so that is beyond my abilities. At the prices he sells them for (including shipping), it hardly seems worth the effort to make them for yourself. Most of them sell for about $35, and he charges less than $5 for shipping. Pretty hard to beat that kind of a deal.

Best wishes,
Dave Wile
 
To Lordgroom: "I am interested. Can you send pics and list a price?" Sorry, but I am not the one making and selling these tool sets. The fellow who makes them is Charlie Darnall, and he has only been selling them on E-Bay. He does not have any for sale at this time, but I suspect he will have more available in a couple of weeks.

To lee n. field: "Interesting. Does he do one suitable for .303 (ie, .311 bullet)?" Again, I am sorry, but I have no idea if he makes one for the 303 Brit. He may, but I do not recall seeing one.

Remember folks, I am not the guy making these tools, and I am not his agent. I just happened to buy one in .357 caliber and found it to be an excellent product and thought I would pass my information on to others who might be interested.

Best wishes,
Dave Wile
 
From your first post,"I then offered to resell one of the .357 tools on E-Bay and send him the money, but he said I was welcome to sell the tool and keep the money. I told him that I could not do that to him and that I would be happy to sell the tool, ship it to whoever buys it and send the money to him. He really is a good guy, and his tool really does make excellent gas checks. I intend to bid on .30, .44 Mag, and .45 calibers as soon as he starts selling again.

In the meantime, if anyone is interested in buying one of Charlie's .357 gas check tools that I know works perfectly, I will be glad to ship it and send the money to Charlie. My E-Mail address is [email protected] , and my home phone number is 717-766-1026. Please feel free to contact me if you have any questions about Charlie's tool set.
"

I was expressing an interest in buying the extra gas check cutter that was shipped to you when you believed it was malfunctioning. Have you already sold or returned the extra?
 
Hey Lordgroom,

Yes, I sold the extra .357 gas check tool set to another fellow who already had one of Charlie's .45 caliber gas check tool sets. He was telling me that he uses one thickness of aluminum to gas check his .45 bullets for his 45-70, and that he could not tell the difference between his aluminum gas checks and the commercial ones from Hornady or Lyman. That is the same result I have had with the .357 aluminum gas check. I have already bought another tool set from Charlie on one of his latest E-Bay deals. I bought the .45 for my 45-70 and look forward to testing it. Keep an eye out for his stuff on E-Bay. With the price of commercial gas checks these days, you just cannot beat these tool sets he is making.

Best wishes,
Dave Wile
 
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