I did a search for this here, Google, in the GECK wiki, and in a few game ini files, but could not find anything on it. Is it even possible to remove or raise the 100 unit limit on the reloading bench?

If so, I would appreciate it someone could make one or tell me where to look (at least a starting point) for this in GECK.

maybe make a recipe that lets you make more than bullet at a time say one unit create 5 bullets at the cost of 5 times what it would be used in making one then the 100 units is 500 bullets

That won't be nearly sufficient. I'm using a couple ammo mods right now that allow complete breakdown of ammo (including melting down of casings) so it can be turned into other kinds of ammo. There's just way too much stuff I'd have to modify for this, all in different mods, and it seems silly to me to do that. It would be better if there were simply a way to remove the limit.

Pretty sure it's an XML thing, ask one of the menu editing modders to include it.