Pistol Range is on pg 270 of the pdf, rifle range is described on 275. Grapple range is loosely considered about 5' as it would take a round (2-3 seconds) low perception zombie at 5'6" high to close that distance. (If you want to discuss 'fast perception' zombies, I'm sure they're grapple range would be much farther)
Hope that helps!
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