I do not crimp for my Ruger No. 1-V in 222 Rem. but then I see no reason to crimp for any of my handloads regardless of cartridge. I see no reason to do so. There is no problem needing crimping to solve. Oh and by the way, my 1V shoots under 1/2" at 100 yards all day long. Recently it gave me my first ever 1/3" 100 yard group with a hunting rifle.Seems to me that the only reason for crimping with a single-shot would be if you were concerned about getting consistent ignition with a certain primer/powder combo.
I don't have a #1-V in .223, but I DO have a .223 single-shot (T/C Contender carbine). No crimp.
Jimreed1948, Welcome from Missouri!Crimp .223 Ruger #1 V
Those of you shooting the Ruger #1 V are you crimping or following the theory of bolt actions where no crimp is needed?