When I was shooting 3-position with the retired WW11 lads in the 70's (somewere not retired yet), many of them used .222's and used the same rifles with Speer 55gr.Spitzers or Hornady 55gr. SP's for their deer hunting, in the "Kootenays" (South Central BC) as well as on Vancouver island.
The odd guy said the 70gr. Speer was really good on rib shots.