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Found it online several years ago. Looks like it came from a computer program. Not sure which program.

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Sorry about the quality but hope this helps. https://uploads.tapatalk-cdn.com/20171122/e155ed63c9cd321f0910265f99aa80bd.jpg

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Kevin,

Our aluminum 35 checks have a height of 0.0740 and our copper checks have a height of 0.0785. Hope that helps!

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I have seen these. Wondering if there is any interest in these. I know they haven't been made in a while and wondering if anyone still uses these molds.

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Just be on the safe side to keep wet WD40 away from powder.

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This is what we are using: https://www.amazon.com/s/ref=nb_sb_noss_2?url=search-alias%3Daps&field-keywords=Coppertex . Obviously a little pricy if your just using it for yourself. We cut it into one...

Gas checks will discolor if stored in open air. This is a natural process of copper oxidation. To prevent this they should be stored in a airtight container with a copper corrosion prevention medium...

Aluminum typically has spring back that copper does not. Copper should give you best fit.

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The major advantage of aluminum over copper is typically cost. If you can get both at the same price I would go with copper. Try to get samples before you load a bunch to make sure you like fit and...

Gator Checks is a brand name. Aluminum being bad for bores relates to the supposed issue related to aluminum oxide. This is not an issue with aluminum checks. We are talking about literal microns of...

Sounds like you need a slightly thinner check. If you could email us at sales@VulcanChecks.com we can get you replacement checks free of charge.

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Lyman gas checks are made by Hornady and repackaged under Lymans' name. So they are interchangeable.

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I am not sure how to reach the Gavin gentleman but I know Sagebrush and I are still selling on Gunbroker and our websites.

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Welcome to the new irrational eBay

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So, it turns out eBay has made a decision that they do not want folks selling anything firearms related including gas checks. All of us had our postings removed for a violation of their rules. Some...

Six, can you post the dimension of the gas check shank? We have run into a couple of Lee Molds like this and might be able to help with an extra thin check.

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Sage, welcome to the club. Had a long conversation with eBay folks today and they actually hung up on me! Some business lol. Off to other sites and of course our own. Leave it to a California tech...

Ricochet, Not sure if you have seen this article but it may help you out:

http://castboolits.gunloads.com/showthread.php?262509-New-article-from-Glen-Fryxell

Psychbiker, either should fit ok for you. I would suggest picking up a sample pack to try prior to purchasing a large volume.

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Wes Sage at sageoutdoors.com I believe is stocking 50 Caliber checks.

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Generally if you are going to push over 1200fps it would require a gas check. Under that I wouldn't be too worried. Even if the mold is designed for a check you wouldn't have to use one if you keep...

Gnoahhh, We make a 0.008 copper gas check for 22. Much thinner than Hornadys. Will probably work. We have sample packs available to try on our website at www.VulcanChecks.com

Your probably thinking of Yonky. His website is Www.coilandfoil.com

Traditional Lyman Checks were of the slip fit style. There are a couple of people out there making slip fit checks including us. We do offering something a little different though. We provide...

Newton,

Are you using a Lee Push Through Sizing Die?

I have found that aluminum checks are significantly more susceptable to tearing vs. copper checks. One thing I have found is if you are...