6
Digital Powder Measure Instruction Manual Version 1.1
10)
Lube your cases and begin trimming. The control box allows for varying the speed of the
trimmer. Most often you will want to run it at a medium to high speed. Use the highest speed
that produces a clean cut. If you see chatter, try slowing down the motor.
Cartridge Conversion
The trimmer can convert 223 cases into 300 AAC Blackout in one pass. Be aware however that a
considerable amount of brass is being removed during this conversion. Using a slower cycle rate and
adding some dwell to the trimming operation will help produce a clean cut. Watch for chip build up in
the vacuum manifold and in the vacuum hose. These can become clogged with chips quickly. Check the
manifold and hose every 50 to 75 cases and clean out excess chips.
Be sure to turn off and unplug the
trimmer before cleaning chips!
The short 300 AAC case (and trim die) often require the use of an off-set
tool head. The lock ring may also need to be moved to the bottom side of the tool head to secure the
die.
Note: when converting cases, be sure to check the neck thickness of the finished 300 AAC cases.
Some 223 cases will be thicker than others and may produce 300 AAC cases with necks that will
exceed SAAMI maximum neck diameter. Your 223 cases will need to be separated and only the case
brands that will produce in-spec neck diameters should be converted.
Changing the Carbide Cutter
1)
To change the cutter, unplug the control box from the power outlet and unplug the trimmer
from the control box. Then unthread the trimmer from trim die.
2)
Remove the four screws holding the mounting adapter to the trimmer motor and lift the
adapter off the trimmer shaft.
3)
Place a wrench onto the flats on the trimmer shaft and another wrench on the collet nut. Turn
the collet nut counterclockwise to loosen the collet.
4)
Once the collet is loose, the cutter can be slid out.
5)
Reverse the above procedure to reinstall a cutter.
Troubleshooting
Refer to the knowledge base section on our website under
SUPPORT
for troubleshooting articles relating
to setup and operation.
http://www.markvii-loading.com/knowledgebase
Please contact us for technical support
Phone:
1-888-462-7577
Hours: 9:00am-4:30pm, ET, M
–
F
