i'm using a teslong did have it working on the tablet then it died . now working on the laptop . without the borescope you have no clue if you have cleaned it
i cant speak to Alliant PP2000MR so i cant say how much of it i could get into the magic powder holder thingies with a CX set at the depth this gun likes . its a long bullet and takes up powder space
until i was able to get that new hornady CX 139 . imr4451 and hornady 139 btsp bullets was it . however with the CX bullet you cant get enough 4451 it in the case to get decent velocity.