It's noticable. A 150 recoils harder than a 120 in mine. Neither are what I'd consider unreasonable but you can tell.Yes for sure. We are not looking for a reduced recoil load anymore, just thinking that a 120 grain should produce less recoil than a 150-160 grain bullet. And if the 120 will do the job for now on deer and antelope, then why not try it.
I have two Tikkas:
45 of R15, BR2, 120 TTSX, standard oal is around 3150.
48.5 of CFE223, CCI250, 2.9 oal using a long action bolt stop and mag, 3246.
Both are basically straight from the Barnes website.