This striker as a .243 was a shooter but more recoil than I like. Switched it to a .221fb and it works just right for target and varmint.

Need a caliber for deer without changing the bolt head. Is there much difference in a 8 twist .223, a 6 x 45, or one of the TCU calibers? Have plenty of .223 brass that can be resized. The .221fb is legal here for deer and does just fine with 55gr but is a little light. Need to shoot 100-200yrds and would be good to have 75+gr loads.