I took the time to messure the exact range aim assist kicks in for all precision rifles. The ranges where messured using the DMR's scope and are accurate to the first comma.
The ranges before the June 3rd weapon tuning are in red, to put it into perspective (Unscoped/Scoped). The Sniper Rifle is also included, note the ridiculous unscoped RRR:
BR: ( 30,71 / 61,16 ) ->> BR: ( 27,60m / 55,10m )
Carbine: ( 30,75 / 61,21 ) ->> Carbine: ( 27,20m / 55,00m )
LR: ( 30,70 / 91,58 ) ->> LR: ( 36,65m / 109,65m )
DMR: ( 38,57 / 114,64 ) ->> DMR: ( 36,80m / 109,70m )
SR: ( 38,20m / 152,20m / 342,80m )
Although I personally did notice it on the BR and Carbine a little bit but it could very well be a placebo with the difference being so miniscule... Discuss!