Can PointForm tools be used with "Bull Head" rail?

Not really.

The PointForm tool is designed to clamp onto the base of the rail when it is clamped into the tool. Bull Head rail has no base as it is shaped similar to an “I” beam. If the rail is taller than the groove in the PointForm tool, the tool will hold the rail by clamping onto the top of the head and bottom of the foot of the rail.

The height of the groove in the PointForm tool isn’t held to very high tolerance, so we can’t guarantee it will hold the rail. We have had customers successfully shim the groove in the tool with thin brass stock that will allow the rail to be held securely, but this is a workaround and isn’t guaranteed to work.