How to get a nice weapon, if you have the Hells Rangers stuff. Saw Gladd do this today, similar to what I did, but they figured out what FP you needed.
Make a new character. Get to the Stash, grab the Hells Rangers weapon (for me it was the AR). Put in the general stash. Swap back to main character and the the weapon. Take the weapon to Zahedi and change the Variant (for me it was to Tactical). If the firepower changes to 359+, keep it. Upgrade it to Epic, then level it up. A 359fp epic AR, when lvl'd to 50 has 90.9fp.
If the Variant change doesn't give you 359+, just Alt-F4 (without exiting the change variant screen). Log back in and repeat.