deletions | additions       diff --git a/Background.tex b/Background.tex  index 87771a6..aa03509 100644  --- a/Background.tex  +++ b/Background.tex 
...
\section{Background}  Modern military practice in regards to riflemanship hinges on repetitive drill in a few standard firing modes, distances,  until the rank and file learns an intuitive feel for projectile behavior, i.e. deviation from path, altitude loss over distance etc. In this manner, it Repetitive drilling attempts to make recruits more or less equally effective at all distances up to the maximum effective distance of the weapon, although response time is expected to suffer if accuracy is to be maintained.  Experience is achieved when the activity becomes muscle memory. It  is hoped that soldiers who need to return fire do so instinctively, in reaction to the external world, no different than one learns to expect an oncoming cars behavior in an intersection.50 meters is determined to be the maximum effective range of a soldier armed with a M16-family assault rifle, assisted only with iron site (no magnification or focal point).