Does anyone have reliable information regarding the rifles used by the infantrymen of Longstreet's corps ( and more specifically, Law's brigade) at Gettysburg? I have assumed that Confederate longarms may have been very heterogeneous and varied in all units, as determined by necessity or by individual soldiers' preferences. This was so early in the war, but I have wondered if the rifles used by confederates had become more uniform by the time of the Battle of Gettysburg; or indeed Were some rebel infantrymen still allowed to preferentially use 'buck and ball' flintlocks as was the case at Shiloh, only fifteen months earlier? Conversely, did every infantryman prefer a 58 cal Springfield or perhaps an Enfield? I know a lot more about the guns of the Civil War than how they were distributed among the troops.