I tried getting in touch with DD but they are not replying. Maybe you know or have a way of finding out...
The upper is marked .223, the lower "Multi" and the manual you shipped with the rifle says that DD only chambers three calibers: 5.56, 6.8 and 300 Blackout.
Furthermore the advertising on the US market refers to it as ".223/5.56"
Is the chamber on my V5 actually 5.56 but marked .223 for export reasons? Can I shoot 5.56 ammo in it?
I'm a little confused by all this contradicting info.
Thanks and hope you can shed some light on this.