27
•
The cartridge overall length specified in the reloading manuals for a cartridge is usually the minimum
length for that bullet/powder charge combination.
WARNING! Avoid loading shorter than the
minimum specified length.
This will seat the bullet deeper into the case which decreases the case
volume and increases the pressure. This may cause an overpressure condition, especially in pistol
cartridges.
•
The bullet must be seated deep enough into the case to provide enough “hold/grip” on the bullet.
•
The bullet should not contact the rifling/lands in the barrel when the cartridge is chambered.
WARNING! --seating bullets into the lands can cause an overpressure condition!
•
The cartridge must fit the firearm’s chamber or magazine (if it has one).
•
The bullet may have a cannelure(s) or a crimping groove that may be used to determine the proper
COAL.
8.6.2
Installation of the Seating Die
•
The Square Deal Seating Assembly consists of a Die Body that drops into the frame and an adjustable
Seating Stem that threads into the Shellplate. The Square Deal is shipped with one Seating Stem
installed and the other shipped separately. There is a third stem included for .38/.357 “wadcutter”
bullets.
•
Select the Seating Stem that matches the nose of the bullet being seated.
•
Thread the Stem into Station #3 on the Toolhead using the Bench Wrench or a 9/16” Wrench. Start
with the Stem 5 turns down. At this point, the Die will not be down far enough to begin seating the
bullet.
8.6.3
Adjustment of the Seating Die
•
Determine the overall cartridge length (COAL) required in your reloading manual.
•
Place a belled case into Station 3. Place a bullet on the belled case mouth and lower the Handle.
Then, raise the Handle just enough to remove the cartridge. Use a dial caliper to measure the cartridge
overall length (COAL). If the bullet is not seated deep enough, screw the Seating Die down 1/2 turn at a
Round Nose
Seat Stem
Wad Cutter
Seat Stem
(.38/.357 only)
Flat Nose
Seat Stem
Select the Stem that best fits
the nose of the bullet
Thread Stem into Station #3 using the Bench
Wrench or a 9/16” Wrench 5 turns down—further
adjustment is required
Seat Die Body #3 installed in the
Frame below Toolhead
Adjustable Seating Stem
threads into Toolhead
Summary of Contents for Square Deal B
Page 50: ...50 13 DILLON PRECISION Square Deal B EXPLODED VIEWS AND PARTS IDENTIFIER 13 1 Main Assembly ...
Page 51: ...51 13 2 Frame and Lower Assembly Index Assembly Index Assembly installed in Frame Index Pawl ...
Page 52: ...52 13 3 Typical Toolhead Assembly 45ACP Shown ...
Page 53: ...53 13 4 Automatic Primer Assembly ...
Page 55: ...55 13 6 Primer Early Warning System ...