Minor Bomb Arrow damage bug?

I have a bowman with 500 min range and bomb arrow does 130%.
When I attack low level mobs like slimes and snails, it does around 300.
I'm not sure if it's a bug or not but when I hit my min it really slows training and farming a lot.

 

Obvious question - what level is your skill?

 

30, I said it does 130%

 

I could be very wrong on this, but does it have anything to do with bow mastery? Like, at max rank Bow Mastery gives 60% mastery, and IIRC that means that the minimum damage you will do is 60% of your minimum range... 60% of 500 is 300?

I think?

I don't actually know?

 

The shot that hits the monster does like 20% damage or something ridiculous, the bomb hits other monsters (up to 5). This was how it was implemented in gms too.

 

So this looks like it isn't a bug either?

 

Yeah it's talked about here under the title "Mob Attacks Raw Math" where the damage is cited at 40%. There's a lot of other useful info there too, like the bizarre crit formulas used for 2nd job skills.