Dillon Precision Products RL550C, Assembly And User Instructions Manual

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8.4.6 Pistol Cases--belling (flaring) the case mouth
•
Note: The Pistol Powder Funnel performs three processes—1-activating the powder measure (with a case), 2-
funneling powder into the case and 3-belling the case mouth.
•
The desired amount of bell/flare is just enough to allow the bullet to sit on the case mouth without falling off or
over and enough belling to keep the case from shaving bullet material, especially with lead bullets. On
handgun cartridges, a sized belled (flared) case mouth diameter should measure approximately .010" larger
than an unflared case mouth.
This is different from adjusting the Powder Die for a bottlenecked case, which is
discussed below.
•
Take the empty pistol case from the previous step and place it in Station 2. Cycle the Operating Handle down
and back up. Remove and inspect the case for proper belling. Thread the Powder Die up or down a small
amount (~
⅛
turn at a time) with your fingers while keeping the Powder Measure from rotating. Place the case
back in Station 2 and repeat the test until the proper amount of belling is attained as shown below. (Over
flaring can be corrected by gently resizing the case back in the Size Die.)
8.4.7 Rifle Cases--again, full Powder Bar Travel is required as previously discussed. Place an empty sized, properly
trimmed and expanded case in Station 2, with no powder in the Powder Measure. (It is highly recommended to
always chamfer and deburr a rifle case neck to assist seating of the bullet and dropping powder.) Note--the Rifle
caliber-specific Powder Funnel fits over the outside of the case neck. Loosen the 7/8-14 Powder Die Locknut and
the two-socket head clamping screws. Cycle the Operating Handle down and raise the Operating Handle just
enough to disengage the case from the Powder Funnel while threading the 7/8-14 powder Die up or down with
your fingers to achieve full travel of the Charge Bar Arm.
The proper adjustment is the Powder Bar reaching the
end of its travel at the same time the Operating Handle reaches the bottom of its travel as the Powder funnel just
barely touches the case neck—a little clearance is acceptable.
Tighten the locknut and the two Powder Die
clamping screws. Excessive contact between the Rifle Powder Funnel and the neck of the case can buckle the case
and/or damage the Powder Measure.
No Belling Adequate Belling Excessive Belling
Flaring Taper of
Pistol Powder
Funnel
Measuring Belling
Just enough Belling to allow
the bullet to sit in the case
mouth without falling over
and not shaving bullet
material