Dillon Precision Products RL550C, Assembly And User Instructions Manual

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With the Operating Handle up in its neutral position, manually take one primer that
you will be using and drop it anvil side up in the hole in the Magazine Cap as shown
below:
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Cycle the Handle smoothly down and back up and push the Handle fully to the rear to the primer eating
position.
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The primer should present itself in Station 1 on top of the Primer Punch as shown below—repeat this step
3 times--if successful proceed to the next step, if not proceed to Primer Drop Alignment Section 10.2.
8.3.3 Verify Primer Seating Depth
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Put a de-primed case in Station 1 and a primer in the Primer Magazine. Cycle the Operating Handle down and
push the Operating Handle firmly to the rear (push-stroke) seating the primer. Remove the case and verify the
primer is seated flush or slightly below flush. Primer seating depth is an important parameter to control when
reloading and can be a safety issue. The ideal seating depth is .002” to .006” (.008” Max) below the case head.
WARNING! “High” or protruding primers can lead to slam fires in semi-autos or firing out of battery and can
stop a revolver’s cylinder from rotating.
Seating the primer too deep can damage the primer, cause misfires
and or inconsistent ignition. Refer to Section 16.4. on Primer Basics and Safety.
Drop one primer in
Magazine Shield/Cap
Correct presentation
of primer—Single
primer drop test
Magazine Tip Alignment Tab
Lightly tighten
knurled Magazine
Cap
Magazine Cap fits over
end of Magazine Tube