Ranged weapons and damage.

How does everyone manage the differing damage from ranged weapons?
I've just put in the stats for a .410 shotgun which has 10/20/50 2D5/1D4/1D2
But only the 2D5 is available for damage.
Would it be best to have it entered three times and use the stats for the correct range?

I think that is the quickest workaround, maybe copy every weapon as you come to use it and give it it's range modifiers so you can have a drag and drop damage for the different ranges

Yes you will need multiple instances of the weapon.