I HAVE THE KNIGHT BK-92 IN .50 CAL., HAD IT FOR YEARS. ALSO I USE THE CONVERSTION KIT FOR THE 209 PRIMERS, I ALSO USE 2 50gr. PYODEX PELLETS, AND I USE A KNIGHT RED HOT 250gr. SABOT, IT SHOOTS GREAT TOPPED OFF WITH A NIKON BUCKMASTER 3-9X40 SCOPE. JUST PUT SOME GREASE ON THE THREADS OF THE BREECH PLUG, AND ACTION.