I have tamed loads of these guys. Fairly easy especially with prime meat. Heres how to tame them:

Youll need: slingshot with 40 stone, five bolas, and 25 raw meat.

First, bola the raptor

Second, pelt the raptor with rock.

Third, feed it raw meat and keep track of its torpor.

Fourth, You have your raptor! Congrats!