GRAB ONE BOYS! I got one and it is sweet! Throws exactly 350 grains with hard alloy (about 1-15 or so with some linotype).
I load 45 grains volume 777 FFG with a drop tube, and crimp over the front driving band. Feeds slick! I tried on the driving band and under it, but it tended to bobble and sticvk a bit. The 45 grains is compressed, but no signs of excessive pressure (no flatning, not cratering, etc,) Seems as accurate as the BAC .512/350.
I smear a little LEE alox around the groove area, let it dry, and then size it. Very nice.
Thanks Pard!!!!!!