FArmorRatingMax

Description	This is a multiplier used to scale the armor rating of armor by skill. A skill of 100 Multiplies the armor rating by 1.0. The fArmorRatingBase value sets the lower threshold for skills of 0. The actual value is interpolated between the two. For example, a skill of 50 is 50% of the way between the min and max, which turns out to be 67.5%.
Default value	1.0000

Note: There are two very similar looking, but different, settings, fMaxArmorRating, which sets the maximum percentage of damage that can be blocked by armor (default is 85), and this setting.