Using the 650, I pull the handle fast and then slow down just as the cutting starts.
This is for a couple reasons.
First, when the cutter first hits the 223 case neck, the shoulder of the case has not yet reached the trim die and it tends to grab and spin.
Jamming the case neck into the cutter really fast lets the case neck grab the die.
Once the case grabs the die, the case does not spin anymore and then I am feeding in the case at a rate that does not lug the motor down TOO MUCH, but I am surely lugging it down some.
It's a dillon, IF I wear it out, they will replace it...
Now, when I reach the top of the stroke, I reverse the press arm to withdraw the case mouth back into the die about 1/16" (the case mouth is actually sticking out of the top of the die while the cutter is trimming it.
If there is any burr on the outside of the case, this causes that burr to fold up and stick out the top of the case mouth.
Now I push the case back UP so that the cutter trims the case again.
Think of this as "double bumping".
Any flash that WAS there is now removed by the cutter.
The pause to double bump is not as long as the pause to seat a primer and place a bullet if you were loading ammo in the conventional way a 650 is used, so my production rate is similar to loading.
With more of my secrets revealed, happy trimming guys...
I don't read these forums very often, so by all means hit me by email if you have questions.
Randall Rausch
www.ar15barrels.com
randall@ar15barrels.com
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