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Old 07-20-2011, 11:31 PM   #2
Join Date: Aug 2010
Location: MI
Default Re: Glass Bottle vs. 9 mm Parabellum

Originally Posted by Gurps Fan View Post
Anyone knows that any commercial 9mm handgun round can easily destroy any of glassware in your house in one shot. But does this happen in GURPS?

A small (1/4 cup = 2 fluid ounces) glass bottle has DR 1 and HP 3 (Low-Tech, p. 34). It's a piece of glass with no moving parts, so it's obviously Homogenous. The bottle is going to match against an iconic 9mm handgun, Beretta 92F (High-Tech, p. 100), which does 2d+2 pi or 9 points (on average). On hit, the glass bottle above takes an injury of (9 - DR 1) * 1/5 (for Homogenous) = 1 point, rounded down.

Yes, only one point per round --you need to shoot the bottle three times with 9mm handgun to force it to roll a unconsciousness check (partial destruction), and six times to force it to roll a death check (total destruction)! This is clearly a murphy. How can you destroy glassware with a handgun in one shot in GURPS, just like in the real life?
As noted on Low Tech p34, Glass bottles aren't Homogenous (which is meant for solid objects), they are Brittle - see Bpg 136. - so 9 points of damage - 1DR will shatter the glassware just fine.
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