It must be noted that, though the M22 fed fine, extraction was difficult and ejection was inconsistent. With the provided five-round magazine in place, ejection was impossible; in fact, after each shot the magazine had to be removed for the case to be expelled. When employing the 17-round HC version from the Tac Ultra, ejection was far more reliable, though still not perfect. It’s my hope that SAAMI approval is attained and other arms makers bring to market .22 TCM-chambered rifles, as the cartridge’s full potential in a long gun isn’t currently being realized.
ref https://www.americanrifleman.org/articl ... paign=0817