Tim, I too was accustomed to cleaning 'powder burners'. The same techniques do not really apply well to AGs. Solvents are basically out. Brass brushes not needed.
Really all I do is push/pull clean patchs through occasionally until they come through the bore clean. Using solvents ,for me, caused me to need to re-season the bore again and again. And set accuracy back to the beginning. I stopped the vigorous scrubbing of the bore ( by AG standards) and the accuracy improved greatly.
And I don't oil the bore. If I was to put an AG up for sometime, I may put a very light coat of oil in the bore. But remove it before shooting the AG again.
The only time that I now clean an AG like a powder burner is when I get a new AG, as the bores are usually a mess from the factory.