This started one afternoon in my 'Stay Alive!' online game where I have been working out some rules.
While MSPE did a fairly good job of laying out ranges for missile weapons with varying Saving Roll difficulties based on gun type and movement, I like the simplicity of of the 7.5 rules where there are 5 levels of Saving Roll based on range.
But, I don't like the idea of a range going from 'Point Blank' to '30 Feet'. Plus, Point Blank is pretty much a sure thing in most cases. You can always rule that for some weapons, Point Blank would be a negative (for a bow maybe).
So here is my new Weapon Range chart for SA! I use Level 0 as a (10), you could also just treat it as a 'DO NOT CRITICAL FAIL'. Either way, I think adding the 'Moderate' range makes sense.