You already own it by the sounds of it. Most ammunition problems have been rectified now. Very accurate round. Will cover all small vermin within SENSIBLE range including fox. Widely available. Relatively cheap. No hassle of reloading. Frangible round unlike the ricochet prone rimfire .22lr.
If you inspect cases first generally rules out most problems. But being aware of any squib round is essential in any calibre with experience. Had 2 in all the years of I had hmrs. Removed bolt and then using clean rod removed bullet. That was before I checked cases I will add
Great round in my op