Yep, same here. I took my load data from 2 magazine articles by Mike Venturino about reloading for the .40-82 WCF. I had the same results he did with hang fires and shotgun sized "patterns" rather than "groups" as close as 25 yards. Once I used the cornmeal filler that he settled on in his articles my 1886 Winchester would shoot 2" to 2 1/2" groups at 100 yards. Sadly, I was talked out of that rapid taper barrel '86 Winchester by a gentleman who just HAD to have it for his collection (plus he paid me a HUGE amount of money compared to what I had originally paid for the rifle) so I let it go to him. Thankfully I kept the RCBS dies, Lyman mould, and formed brass for it which helped immensely when I found and bought a nice old Winchester 1885 High Wall single shot in .40-82. It likes that same Venturino load with the cornmeal filler too ...