Description
For as long as we've been reloading we've always hated setting up our full length sizing dies. We've been using shims to help this along for quite a long while now, but have not really been pleased with them. It seems we always misplace them, or can't find the ones we need, or grab the wrong ones, and they always seem to be covered in rust. For as many years as we've been doing this we've always been looking for a better way. After searching off and on for a solution to this nagging problem we finally have a workable solution. The PMA Micro Die Adjuster.
The PMA Tool Micro Die Adjuster (MDA) replaces your existing lock ring and can be used with nearly any 7/8-14 full length sizing die. We successfully used this tool with sizing dies from Redding, RCBS, Hornady, Lee, Harrells Precision and those made from Newlon Precision die blanks. It allows you to easily make adjustments to your “shoulder bump” as fine as .0005”. The engraved marks on the MDA are equal to approximately .001” (true adjustment .000992”) of adjustment to the shoulder bump. Splitting the engraved marks is therefore approximately equal to .0005”. The design of the MDA does not allow it to work with the Forster Co-Ax press and is not intended for use with turret presses, progressive presses or the RCBS Summit press. Some custom dies for very short cartridges may require the use of an extended shellholder.Micro Die Adjuster shown in use installed on Custom Newlon/Scott 6mm PPC Die and Harrells Precision Compact Press.
**Includes Thumb Screw Upgrade for locking the adjustment in place
61 Reviews
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Time saver
This is a well thought out piece to add to a sizing die. Makes sizing die adjustment very easy. I would recommend this to anyone.
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Fantastic Tool!
The workmanship and quality on this tool is amazing. It works perfectly. I had it set up and resizing brass in no time at all! Thank You. Wayne
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Taught me a lot about different brands of brass
Wish I had this years ago, I learned so much about different manufactures of brass and how hard or soft the brass was. I can now adjust for those differences. Once set my cases are very consistant.
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Excellent Tool Assures Consistent Headspace
No more "close enough" for headspace on batches of brass. With this tool set up is easy to put headspace exactly where you want it, then repeat it exactly for subsequent batches for the same cartridge.
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One Fine Tool
Spent a couple of hours testing and playing with my new toy, beyond accurate and worth twice the price, no shims!
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I'm glad they thought of this
Great product.Shims used to drive me crazy,put a .002 in and get .0035 of change. With this if you want .0015 set it and that's what you get. Won't work on a Redding turret press however-no swing room.
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Easy to follow instructions
Set up was quick and easy to follow instructions, gives consistant shoulder readings, great product