well if you go on down to wal mart or someplace you can get yourself reasonably cheap a cleaning kit for all shotguns. It has everything needed to get started and get it cleaned. Then they should have a rifle kit, and all you will need, IMHO, is the bore brush and the tip for patches that fits .270. It too should have the solvent and patches needed to clean it.

I usually clean mine after each trip to the range, or after coming in from hunting and it has rained, or been damp, like snow, and it might get warm and sweat in the car or house. After the season, I clean them thoroughly and then lightly oil the inside of the barrel and the gun and put it in the safe till I get it out. remeber when you get it back out to use, to run a patch with solvent down the barrel to remove the oil, followed by a dry patch or two! [8D]