Pro-Mag REM-A2 30 rd drum cleaning

[u/NeruLight]

Hey all, I used to love my 30 round pro-mag 597 .22 drums but I find that over time their reliability is going down. Getting feed issues and I can feel that it’s getting a bit sticky. I fear I ran too much crap and waxy ammo through them. I can’t find any disassembly videos and I know drums are a pain to reassemble so I’m nervous to just wing it. AI says to just spray ballistol in there but isn’t that a gun oil which you shouldn’t use in a magazine? If I did want to just wash it somehow what should I use or maybe lubricate only somehow? Anyone have any advice?