If your can of APP has been opened for several months, take the lid off and sniff it. If it smells like brown sugar it has gotten moisture and is deteriorating. Same thing happens with JSG. Mine was opened in Sep. of last year. When i checked it two weeks ago itis smelling like brown sugar.

My Encore was very accurate with 90 grains of JSG from that can. Not sure now. That opened can of JSG seemed inconsistent when used in another gun about ten days ago.Got to shoot it all up and get another can. When that can is opened it will go into an Army ammo can with dessicant.

Be careful what you use in the bore of your gun. i use Militecin the bore ofmyEncore. The stuff kind of penetrates the metal and i have to swab it out really well with alcohol before loading. Otherwise there is that crud ring.

Good luck.