Here is an overview of all the factors that affect PSp: The PSp is very variable, being affected by the players weapon skill, movement, arms and much more.
Now the total spread consists of two major factors, the player's spread (from here on referred to as PSp) and the weapon's spread (referred to as WSp).
These settings all affect the player's spread. How much each point of the associated skill under the weapon's requirement affects spread How much each point of STR under the weapon's requirement affects spread Used when calculating SkillBonusMultiplier Used when calculating ArmConditionPenalty Instead we are presented with the following new settings in FNV: And just to point out here again, FNV is full of data and settings that are legacies from Oblivion and FO3, so just because something exists in the data files, doesn't mean it's actually used anywhere. Now forget all about it, because none of the settings or formulas are used in Fallout New Vegas. A lot of you probably know the Gun Spread Formula from the (original) GECK wiki.