Redding Micro-Adjust Taper Crimp Dies for .223 Rem and .308 Win
Redding is now offering Micro-Adjusting Taper Crimp Dies for the .223 Remington (5.56×45) and .308 Winchester (7.62×51), the two most popular cartridges used in competitive rifle shooting. New for 2014, these top-adjusting, micrometer-style dies, you can adjust crimp precisely without having to back-out the die and reposition the lock ring.
The process of traditional taper crimp die adjustment is generally both time consuming and imprecise due to the 1:14″ thread pitch coupled with the need to reposition the lock ring after each adjustment. The new Redding Micro-Adjusting Taper Crimp Dies for .223 Rem and .308 Win use a knurled, micrometer-type head situated to provide approximately +/- 0.100″ of adjustment after initial die set-up. The actual crimp is applied with a hardened steel “free floating” internal sleeve.
To Taper Crimp or Not to Crimp?
Do you actually need a taper crimp on .223 Rem or .308 Win cartridges? If you are shooting a precision bolt gun, the answer is “probably not”. However, if you are hand-loading ammo for a semi-automatic rifle, there are reasons you may want to apply a taper crimp on the cartridge. And high-volume .223 Rem shooters may want to apply a taper crimp, particularly when loading mixed headstamp brass using a progressive press. The new Redding dies allow you to control the amount of crimp easily and more efficiently. Redding claims that: “Down time and loss of production due to adjustment of the crimp are virtually eliminated, dramatically increasing the rounds per hour rates of all progressive and turret-style presses.”
High-volume hand-loaders often struggle with the realities of case variation and the resulting difficulties in obtaining a uniform crimp. Redding notes: “Case length is not the only variable, as case neck-wall thickness also impacts where the case intersects the die’s tapered crimping surface.”
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