The Lee Bullet Feed Kits for 9mm
works well for many but not all bullets. Unfortunately, they do not work
well with Berry's 9mm round nose plated bullets, or other 9mm
plated bullets that mimic this design. The shape of the ogive on this
bullet allows the bullet that is sitting on top of the bullet in the Feed Fingers to tip too far back into the Feed Die as the bullet in the Feed Fingers is pulled out from underneath. When this bullet then drops
down, it lands on the edge of its base, instead of flat on its base, and
all of the other bullets cascade from the Feed Tube.
If you wish
to use this bullet with the Lee Bullet Feed Kit, one fix is to modify the Feed Die designed for bullets up to .46" long. The modification to be made
is to machine a small arch in the front of the Feed Die using a
grinding stone in a Dremel type rotary tool. This arch should be just
high enough and wide enough to allow the .5525" long bullet to exit the Feed Die in the grip of the Feed Fingers. This modification keeps the
bullet on top of the bullet in the Feed Fingers upright so it lands flat
on its base when the bullet in the Feed Fingers is pulled out from
underneath. This prevents all the rest of the bullets from raining down out of the Feed Tube.