Adjusting Weapon stats for smaller and larger creatures

[DrSpunj]

I'm trying to convert some halfspears for Diminuitive creatures.

Halfspears are usually Medium size weapons doing 1d6 dmg with a crit of x3 and a range increment of 20'.

The MM provides a table on on pg. 14 to modify the damage from 1d6. Since Small creatures can throw a weapon they normally have to use two hands to wield, I brought the halfspear down to the Tiny size (taking the damage from 1d6 down 2 steps to 1d3).

My question centers on the Range Increment. I realize this is a fantasy game, but it doesn't make sense to me that someone that small can throw an appropriately-for-them sized Halfspear and still have a range increment of 20'! Is there a rule I'm missing/forgetting that helps adjust this? And if there is such a rule, does it differentiate between thrown and projectile weapons?

Thanks.
DrSpunj

 

[hong]

There are no set rules on modifying ranges. However, you could just halve the range increment for each downsizing step, since that's how the size categories work.

 

[EOL]

I wouldn't (even if creating spears for fine creatures) reduce the range increment below 5' because that would just be a pain.

 

[CRGreathouse]

The only example I can think of that might help is bows:

Composite shortbow 70 ft (PH 99)
Composite longbow 110 ft (PH 99)
. . .
Gargantuan composite longbow 180 ft (MM 102)

 

[DrSpunj]

Hmm...

Thanks all. I didn't remember a specific ruling about it. I'll play around with it. I don't want the little guys not to be able to hit the party members at all, so I'll just find something that seems to fit. Thanks again.

DrSpunj

 

[(Psi)SeveredHead]

The Monster Manual has rules for this, so does a cleric spell (Righteous Might).
Note that 1d12 and 2d6 are the same thing, and 1d10 doesn't really count (what do you do with a Huge bastard sword?).

The list is something like this
1d3
1d4
1d6
1d8 or 2d4
1d12 or 2d6
2d8
4d6
4d8
For every size category increase, go down the list by one. For every size category decrease, go up the list by one.

Hope this helps.

For range, just cut to 3/4 when you go down a size category (based on brute, weight lifting strength, not just strength score. A halfling has -2 to Strength because it's a little weak for its size. But seeing how it weights about 50 pounds, it realistically should be a lot weaker).