Is anyone using Ramshot Exterminator in the 45/70? I've got a pound of it and am having issues with it gumming up the action on my Marlin 1895GG. I'm guessing that I might need to crimp a little tighter as it appears to be un-burnt powder mixed with the oil. I've been using H4895 with no issues but got this powder from a buddy and like it (it is very accurate, easy on my shoulder and meters like a dream from my powder measure), but if I've got to fight it to open the bolt and clean the action after every shot, it's not for me in that rifle. It's supposed to be good in the .223 so I'll try it there but I'd like it to work in a couple of different calibers. Any ideas or advice?