Hi Jn<BR>The best way to learn about PP is to buy Paul Matthews book the paper patch, he wrote a series of 4 or5 books on Black powder cartriges.<BR>They are available through Wolfs publishing (same people from Rifle and Hloader) but before you buy the book you should check out Brents web site <A HREF="http://www.public.iastate.edu/~codi/PPB/PPB.html" TARGET=_blank>http://www.public.iastate.edu/~codi/PPB/PPB.html</A> this gentlemen knows a lot about it.<BR>He put me in the right direction.<P>I believe he may refer to the BP list on his site,mostly BP competition shooters there , most helpfull and knowledgable.<BR>If not I can find it for you.<P>The fiftyes in the original twist are hard to make shoot accurately the comepetition guys rebarrel to a faster twist 1-20 or so.<P>The accuraty I get was done (brent's idea) by shooting bullets (PP) in bore size not groove size ,the bullet is in the case just far enough to hold it there maybe .200" this way most of the bullet is in the barrel when the round is chambered.<P>When I bought the gun I also bought 100 cases and they will last me a long time.<P>Cases are available form Huntington.<P>Hope this helps.<BR>Regards Martin