I didn't think Winchester ever offered the M70 - of whatever version - in .284 Winchester, much less one with CRF and a DBM. Evidently they did, unless this has been cobbled together. NB, this is not my rifle, so I have no connection with the listing other than I just found it interesting.

https://www.gunbroker.com/item/1005638663

"An archer sees how far he can be from a target and still hit it, a bowhunter sees how close he can get before he shoots." It is certainly easy to use that same line of thinking with firearms. -- Unknown