Landngroove- I shot some Pinnacle(3fg) in my 50 caplock,yesterday. I now, only use Stumpkillers liquid Moose stuff,for patch lube. When shooting the 'SUB' powders,the patches are lubed to where they are just damp.With APP and PInnacle powder just use regular caps,CCI#11,is what I used yesterday. Both powders shot well,APP leaves gray-like residue,Pinnacle leaves lighter color.Both clean up with plain water,and you can rinse your patches and re-use. The only differnce I noticed,APP has a much sharper recoil,and Pinnacle seems more like real B/P.I did not use my 'Chrono'(it was killed by a .416 Rigby,and is still dead). With Pinnacle,I loaded 85grns(by volume),slobbered the patch with Stump's moose juice,left it loaded for five minutes,capped,fired no problem. I would strongly advise NOT doing this with APP.The Pinnacle powder works in FLintlocks,APP DOES NOT. Both loads shot point of aim at 100yds,off hand my normal score,38-41. Both powders did this consistently(when I did my part).Hope this helps...Respecfully Montanadan..(I have spent the last 6mos.practicing the 100 off hand,I still really suck)