Though .223 is a ".22 cal" projectile, you know that the pressures are much higher than this suppressor was engineered to withstand. Get a dedicated 5.56 can if you want to shoot .223. Just sayin'. Also, this is the response I got back from YHM when I sent them my tech question about the SS Mite.
Sir,
Thank you for your interest in our products. Yes, you can shoot either .22 mag or .17HMR through either a
Stainless Steel Mite or a Wraith .22 with no problems. You CANNOT shoot them out of an aluminum Mite,(YHM-3340-A
orYHM-3360-A), as the pressures are too great for an aluminum suppressor and you will damage the suppressor. There
is no problem though useing them in a stainless steel suppressor. One other note, the Wraith .22 is NOT a take
apart suppressor. It is like our Phantoms and does not come apart. Only the Mites come apart.
Thanks,
Tom Camilleri
Sales-Tech
YHM