75%HS with ScarH, 70% with UMP45, 86% with MX4, 76% with M416, etc.  http://prntscr.com/gh8e5g

That's 72% HS with AR's, 75% with PDW's, 73% with DMR's, 71% with LMG's.  http://prntscr.com/gh8epz

http://battlelog.battlefield.com/bf4/battlereport/show/1/904609632650002112/1881017734/