Hi Cerwyn,
Thanks for the tip. The pin does have a grub screw.
Unfortunately the pin has a collar near the base. When the grub screw is adjusted, the pin can only move in a forward direction.
I need to move the pin away from the carts in the mag. Right now, they practically touch one another.
I'm going to try to locate a couple of metal washers of sufficient height and diameter with the idea of finding a washer wide enough to move the det pin about 3/8" away from where it presently sits.
The acceptable choice will go into the trunnion then the det pin assembly will be seated on top of the washer.
With the right sized washer I think I can increase the distance from the tip of the pin to the cart in the magazine.
If this "solution" doesn't work, I think a machinist will need to reduce the shaft length.
Thanks again, Chris