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Checkmaker Gas Check
Forming Tool and Die sets
LEE Sizing Dies push through adaptor

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Patmarlins Checkmaker Dies

Gas Check Forming Tool and Die sets


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Check out the new "tall" 30T cal Checkmaker™...


Hello Pat,
Just a few lines to say Thank You.
I purchased the 44 and 35 plain base dies over 2 years ago.  I have made thousands of checks. Your dies have performed flawlessly.
To tell the truth,  I worked the Heck out of them. 
There are many shooters who appreciate your devotion and commitment.
Again Thanks.
-John Leone
I know you have hundreds of raves regarding your checkmaker. I just wanted to add my 2 cents worth. I ordered a PB checkmaker a few years ago for my .357's and recently got one for my 44 mag rifles. I can't say enough about this product. I just got a 44 cal 280 gr LFN PB mold from Veral at LBT and your checks make this bullet perform superbly in my Ruger 77/44 and my Henry 44 mag carbine. Accuracy is incredible with full house loads using a sweetened wheel weight alloy. I've included a couple of pictures of my checkmaker mountain dew bullets. Thanks for a great product. 
-Bill Gufford





Push Through Adaptor for LEE Sizing Dies

-Push Through Adaptor for LEE Sizing Dies- 




Gas Check Forming Tool and Die sets


Make your own quality gas checks and NEVER buy Gas Checks again!


  • Meet or exceed accuracy shooting results of factory gas checks.

  • Very user friendly - fast and easy to use, and to set up.

  • Produce concentric gas checks that fit and STAY on, using the accuracy of your reloading press.

  • +/- .0005" Precision Heavy Duty machined quality with no moving parts to break or gum up.

  • Lifetime purchase and user resharpen able and FULLY rebuildable..!

  • Over 62 Calibers currently in Production and MORE to come...


Patmarlins™ fully guarantees EVERY die set and all products offered to be spot on
and work flawlessly to your satisfaction,
with a "No BS" warranty.

To all customers...

Folks, I absolutely guarantee my products work as advertised, AND will work to your satisfaction.
As always customer support is a TOP priority. Your order is guaranteed to be spot on and work flawlessly. I stand behind my products with the best of a "No Nonsense" warranty.

Thank you so much for your kindness and business,


I have one of Patmarlin's 35cal PB check makers. I get my aluminum from soda cans.
The die is ingenious, works beautifully and so do the checks.

Hello Pat,

Your .30 cal Checkmaker has arrived today in Switzerland. Works like a charm with 0.02mm (0.008") copper foil and the checks fit all my different .30 cal Lee & MP bullets. Looking forward to the results of my next range trip. I'm highly satisfied with your product, thank you very much!

Best regards,


"For my own use in target competitions, I use Pat Marlin checks I make myself.  I have had wins with PM checks 🙂

When you find the right thickness of Copper or Alu, they stay on well and match the Hornady, which are now priced away from my pocket."