Cleaning my BP barrels until the patches come out perfectly clean, drying them out and oiling them.
The oil is applied with a wool mop saturated in oil and pumped up and down the barrel a few times, on the last pull, I spin the mop faster than the rifling so the oil is forced into the rifling from the sideways rotation of the mop.
I find that after 3-4 days, the oil seems to have thinned out to nothing and I can get drown/red dirty patches out the barrel.
So it seems that I need to dry better and maybe change my oil for something better?
Drying is done with patches until 'dry'.

I've used :-

Hoppes No9
Abby gun oil
Rig Grease
Barricade

Has anybody used other oils that keep a UK gun rust free after cleaning?

My bores shine like a mirror with a bore light, and patch smoothly, but I would like to able to re-patch them a week after cleaning and not have dirty brown patches again.

P.S,
I use a bronze brush also during a clean.