There are clear differences between the English and Spanish weapon range color guides, while at the same time the numeric values of inches in the English version and centimeters in the Spanish version do indeed match accordingly. Posting the weapons I spotted being different in the below post:
They are simply if different scales. The numbers are correct. Visually they seem to be differents, but... 8" => 20cm 16" => 40cm 24" => 60cm The spanish graphic representation is out of scale