I just finished putting together a 223 Savage for my 10 yr old. I have some 5.56 55 gr FMJ ammo. Only factory stuff I could find. I know the difference in throating of the 223 and the 5.56. These are 55 bullets. I will measure the distance to the ogive tonight to verify they are not being jammed.

Do the same 5.56/223 issue exist in bolt guns that everyone is so concerned about for the ARs? I am shooting this to just sight the rifle and have a few fired rounds to set the headspace on my dies. I will reload everything from that point on using my existing LC brass.

Thanks, Tim