Re: Ruger 10/22 cleaning question
A cleaning rod made of brass or aluminum CAN'T harm the bore or crown, regardless of which end you use it from.
Some prefer to drill a hole in the back of the 10/.22 receiver, so a rod can be used from the breech end.
I use my own version of a "bore snake". It's a piece of masons' line, about 5' long, with a loop tied in one end. I run the line thru the bore from the breech end, then bring the loose end back and run it thru the loop for about 6". Add a patch in the loop, then wet it with oil or solvent, or keep it dry. As the whole thing is pulled thru the bore, the loose end of the line goes thru as well, so I don't have to manually insert it thru the bore for each pass.
2 patches with Hoppes, followed by one dry patch is all it takes to make the bore shiny clean. I cut the patches pretty large, so they pull thru hard.
There are several little tricks one learns about 10/.22's over time. For me, it just makes them more interesting and enjoyable.
Around here, we don't say "Oh shucks", or "oh man". We say Oh BAMA!!