Lyman PRIMER POCKET UNIFORMER Small Rifle and Small Pistol

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Lyman PRIMER POCKET UNIFORMER Small Rifle and Small Pistol
[7810218]

37.50 Euro

Lyman PRIMER POCKET UNIFORMER Small Rifle and Small Pistol

Product may vary slightly from image representation

Description

The Uniformer tools are designed to cut rifle primer pockets to a uniform depth.
Uniform primer depth will produce more consistent ignition and can lead to improved accuracy.
Primer pocket uniformers cut the primer pocket to a uniform depth and at the same time squares the seating surface for the anvil of the primer.

Primers are constructed so that the anvil protrudes slightly from the open end of the primer cup.
This is necessary so that the anvil will rest firmly on the bottom of the primer pocket.
When the firing pin strikes the primer, the impact sensitive compound inside the primer is crushed between the anvil and cup causing the compound to ignite.
Variations in the depth of the depth or configuration of the primer pocket, or in the primer seating operation itself, can alter the effects of the firing pin blow.
This in turn effects the ignition of the primer and may affect the accuracy of the cartridge.

To use the uniformer tool, insert the proper size tool, large or small, into the primer pocket of an empty, deprimed case.
Be sure to hold the case straight in-line with the tool and turn the crank several times while applying pressure against the cutter.
Keep the case straight in-line with the cutter as holding the case at an angle could enlarge the primer pocket and cause gas leakage.
Continue to turn the crank until the shoulder of the cutting tool makes contact with the head of the case.
Remove the case from the tool and check for any brass shavings.
Remove any shavings that are found. If no material is removed, the primer pocket is already as deep as it should be.

Attention

● The uniform tools are factory set to S.A.A.M.I. specifications and are fixed in place. No adjustments are needed or should be attempted!
● DO NOT use the large uniformer tool on pistol cases as large pistol primers are a different height than large rifle cases.
● If military cases are used, remove the primer pocket crimp first before uniforming the pocket depth.