Pglasgow

mr onmyway,

I'd give the nipple a good inspection. If the rifle has been dry fired much, then the top of the nipple will be bulged a little. Enough anyway that the cap may not be seating on the tip of the nipple.(Like maybe the first try compresses it to the nipple tip and the second fires it.)

I'd look there first and try a new nipple if its bulged any at the tip. They are a $1 at Walmart right now.