Mining Pick? How much damage to stone?

Emirikol

Adventurer
We currently have a question in our game. Our dwarf is going to dig through some stone after a vampire who went through a crack. how much damage does a miners pick do to the stone?

Should he be using his greataxe instead?

jh
 

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Well, I'd make use of three rules.

The first is:

SRD: Carrying said:
Ineffective Weapons: Certain weapons just can’t effectively deal damage to certain objects.

I'd say, "Sorry. Your battle axe just doesn't do any damage to the stone wall. Care to try something built for the task?"

Second: Medium Heavy Picks generally do 1d6 damage.

But these heavy picks are actually military picks, and so are suitable for use as weapons.

A miner's pick is not. I'd increase it to a two-handed, improvised weapon, and increase the damage dice to 1d8.

Third: One inch of stone has 15 hit points, and Hardness 8. I would not allow Power Attack to be used in this case. So, every 15 HP of damage he does to the stone wall results in a one inch depression. You'll need to decide how big the depression is.
 

So, is it assumable that the actual area of the hole that is created for these 15 hp's is large enough for a person to move through. Say, a 5x5 hole as standard. 15 hp's per 1 " thick.

Sound about right?

jh
 

Well, let's do a quick math check, eh?

Let's say an average miner has a Strength score of 14. That gives him an average damage of 1d8+3 per 6 seconds.

The chance that he damages the wall at all in any given round is 3 / 8, or ~38%.

When he does manage to damage the wall, he'll roll 10 damage on average, which means he'll get 2 points past the hardness. His average damage per round, then, 0.75.

Therefore, it will take a standard miner, on average, 20 rounds, or two minutes, to put a 5' by 5' by 1" depression in a wall of rock.

This translates into roughly 4 hours to dig a 5' by 5' by 10' tunnel for a standard miner. It seems a little fast, to me, but then we're dealing with D&D, so a little bit of unreality seems fine.

Note that if you make the above-mentioned miner slightly weaker (Strength 12 or 13), it takes a full 24 hours of work to dig the same tunnel.

So, how do those numbers sound to you?
 

The DMG has hit points for sections of wall, per inch of thickness, based on material. The hit points represent a 5 ft x 5 ft area. Once you "kill" such an area, you have opened a breach.

In that sense, any weapon can eventually do it, though as Patryn of Elvenshae mentioned, you can rule certain weapons as useless.
 


Hong said:

Some people don't allow power attack to be used unless you are actually rolling attacks. I think that's an odd ruling, but a lot of people do things I think are odd. I got used to it...

-Tatsu
 


hong said:

It doesn't seem right to me.

Power Attack is a combat feat that represents (in my head, anyway), ignoring certain openings in your opponent's defense in order to strike only at particularly opportune times (for an increase in damage per successful hit).

So, if you're not making attack rolls, there's no "certain openings" to ignore, and therefore no benefit to be gained.

This has a side-effect of disallowing Power Attacks on CDGs, which follows similar logic, but allowing it on standard attacks against helpless foes. I find the cinematic aspect of this palatable.

I'm not entirely sold on the issue, however, and YMMV.
 

Patryn, your explanations and analysis seem spot on, except for one thing that I disagree with. IMO, a miner's pick should do slightly more than 1d8 damage, since otherwise, a character without above-average strength would *never* be able to get anywhere with it. I don't mind a low-Str character being moderately ineffective with a pick, but the idea of having an average human (or dwarf, for that matter) swinging away at a wall for an arbitrarily long amount of time and not making any progress at all seems a little odd.
If it were my game, I'd simply rule that a pick does 1 extra point of damage against suitable objects (such as unworked stone). This means that even a normal person could make some progress with it, while a Str 14 character such as the one you used in your example above (a person who is actually very strong) is able to make exceptional progress.
 

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