RE: I recently picked up a .243 for deer hunting due too some shoulder trouble.
100 grain round nose or the Nosler Partition. Thats the only two bullets that I ever had any consistant performance from with the 243. I never tried the Barnes X bullets. Got rid of the 243's. I feel your pain in the shoulder. I have a real bad shoulder and it does not appear that it is repairable. I had to get rid of all my hard kickers as well. I now shoot the 6.5x55.