The title pretty much says it all. Watched enough videos to realize that there are surely various opinions, some seem to never do a complete disassembly…just wondering if there is a consensus here or not.
Every time.
Flintlocks I remove all but the barrel, I remove the barrel every year or two.
I remove the Lock and vent liner (on ones that have).
Percussion rifle my barrel lifts off so I pull it and the Nipple every time.
Percussion pistols I remove the cylinders each time, only break down grips etc maybe once a year.
As far as 'wearing out threads'; in my opinion that is operator error and/or bad maintenance (not greasing or improper grease).
As for the barrels and cylinders; I only use nylon brushes or TOW.
I have never had a rust issue but I am in a very dry region (except one that was gifted to me a rusty mess, it's all good after days and days of elbow grease).
With religious cleaning (maybe 20min or so per piece) I never get bad build ups or surprises.
Clean, Dry, Lube/Oil, Wipe, Hang it up.
All part of owning, and keeping, firearms.
Now for unmentionables I am not as aggresive; always 'clean' but only do full break downs every few trips.
Oh; and I only use Black Powder, no interest in fake stuff.