Things have obviously changed, when I was in the mob, (pre IRA activites 1969), as a member of the regimental shooting team I kept my weapon with me in barracks or at home in a WD Hiring. We didn't put them in the armoury as they had all been zeroed to ourselves and we didn't want them mixed up with others.
Much later than that (mis 80s), there was a crackdown after someone (poss RAFP, poss Odiham, excuse memory) took a pistol home to MQs and shot someone in a domestic. Sorry for the inadequate detail-someone will remember.
****, fan etc.
Oh, and weren't 'misfires' in the chanted declaration?