Pella hunter
Following caygads instructions andone other thought - I swab after every shot - I want the barrel in the same condition (partially fouled) it will be when I am hunting, anyway on that swab after I have cleared the barrel I make several very rapid pushes down the barrel listening for the air to rush out of the nipple... I am also listening for dry area... no bubbling or gurgling...
Even then once in awhile I will need to resort to the nipple pick....