I just sold my BL22 that I owned it for almost fifty years.I made my own cleaning string with some weed eater line heated and flattened on one end, and then cut on an angle on the other end, to pierce the patch.The Bl22 is not an easy gun to take apart, and then put back together, plus it is easy to lose small delicate parts, and not get them together properly."Mixup98" on Youtube, has a great video on the process on taking it apart, and carefully putting it all back.His channel is a good one ............If you have trouble making the bore cleaner, i will mail you one out, and make one myself for you.Everyone loves them for cleaning their gun, that I have given to them.It cleans any barrel without damage, plus is good for removing excessive fouling, between groups.