I shot a lot of loose 777 through a Lyman Great Plains 50 at local monthly matches.

I was careful to clean it at the end of the match with wet patches, dry patches and I left it lubed.

With the inlines, having along a good range rod to swab the bore clean, dry and lubed at the end of a days hunt and pulling the breech plug when I got home worked fine.
If I'd lubed the breech plug beforehand...

Leave the breech plug in dirty too long and it can be a fight to remove as some bits of crud get driven into the threads.

It's was simpler to have a ratchet, extension and socket, lube and patches under the foam of the rifle case and a range rod with the rifle.

"Camping places fix themselves in your mind as if you had spent long periods of your life in them.
You will remember a curve of your wagon track in the grass of the plain like the features of a friend."
Isak Dinesen