It works fine, I've been using mine just like the others here that did the same thing before I made mine. /ubbthreads/images/graemlins/wink.gif Didn't need a vise for anything, do half of the length gauge at a time, the other half will be in the chuck, just work it down with a file, the end near the cutter is the only part that's critical, the other half just needs to be small enough to fit in the case.
Just touch the pilot end with a dremel cutoff tool to shorten it a bit at a time until it trims to recommended trim length. Polish the tip a bit with 600 wet/dry paper with the gauge chucked in the press, do the same for the bearing surface near the cutter.
As cheap as the length gauges are, it's not a real catastophe if you screw one up, some folks can do that ya know!! /ubbthreads/images/graemlins/smiliesmack.gif