November 1, 2021
Click-Adjust Die Options Available from PMA Tool & Whidden Gunworks
Setting the shoulder bump during full-length (FL), sizing is one of the most important aspects in precision reloading. The amount of “bump”, or the amount of bump, should be exact and consistent for each loaded round. To achieve the desired bump and case body size, you might need to adjust the die position when switching brands of brass. Even if you are using the same brand of brass you might need to adjust the FL die depending on how many brass load cycles you have. Brass that has been fired multiple times will behave differently to new or nearly-new brass.
Even with the same cartridge, brass loaded in semi-auto rifles may require more bump than brass fired from bolt guns. If you are shooting.223 Rem ammunition in an AR15, rather than a bolt-action rifle, you will normally need to push the shoulder back further.
How do you adjust your full-length dies to make them fit? Although you can move a locking ring up or down, it can be tedious and time-consuming. Some men use shims at one-thousandth intervals. However, this still requires you to take your dies out of the press. There is an easier way…
PMA Tool Micro-Die Adjuster
It would be amazing if your FL die could be adjusted precisely in half-thousandths of an inch using a simple click. With products from Whidden Gunworks and PMA Tool, this is now possible. PMA Tool has a Micro-Die adjuster that can replace your existing lock rings and can be used with almost any 7/8-14 full-length sizing die. The engraved marks correspond approximately to.001? Adjustment of the shoulder bump. The engraved marks can be divided by approximately.0005? (Half a thousandth). This product is loved by users who say it increases precision and saves them time.
Whidden Click-Adjustable FL Sizing Die System
Whidden Gunworks has a click-adjustable FL Sizer Die with a special, indexed Ring. Whidden’s Click Adjustable Sizer Die System allows for quick, precise bump adjustments. One click changes the bump.001? It’s easy and quick. A shoulder bump gauge is included with the Click Adjustable Sizing Die. John Whidden explains:
“There is a need to make it easier to adjust the sizer properly. There have been no other options than trial and error to adjust the shoulder setback. It’s a tedious and difficult job that anyone who has tried it can attest to. The click-feel adjustment is made possible by the combination of our die and lock rings. Each click moves the shoulder bump by.001”, so you can find the exact spot you want. John Whidden
New Universal Click Adjustable Lock Ring for Standard Sizing Dies
Whidden Gunworks now offers a Universal Click Adjustable Lock Ring that can be used with all standard sizing dies. This Lock Ring is a great alternative to buying a complete die. It provides all the functionality of the click-adjustable Whidden sizing dies, but for standard 7/8-14 dies. Lock Ring Instructions PDF.
John Whidden explains that the Universal Click Adjustable Lock Ring (Patent Number: 10,393,488) can instantly transform your sizer into a Click Adjustable die. This ring can be used with any 7/8 OD sizer from any brand with an adjustable shoulder bump. The inner and outer rings can rotate independently from each other. Each click is rated in true 1,000,000ths adjustment and has.100? total available travel. Two rifles can be loaded with different headspace. This allows for optimization of the shoulder bump for each rifle.
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Tags: Click Adjustable Ring, Click-Adjust Dies, FL Sizing Dies, PMA Tool, Whidden Gunworks, Whidden Universal Die Lock Ring
