You DO NOT need to field strip your pistol to clean. I had a ton of trouble taking/putting it together. So once I got it together, I vowed to never, ever, take it apart again.
Now, all you need to do to clean is:
1) Pull the bolt back and engage the bolt catch.
2) Give the inside of the pistol (through the ejector) a few blasts of compressed air.
3) Repeat step 2. This time use a solvent spray can. I use CLP Breakfree with great success. Don't spray too much, 2 should do it. If that stuff is dripping from your magazine well, you used too much.
4) Optional step. Use a Q-tip dipped in CLP or solvent to clean the hard to reach places inside your pistol. Again, optional.
5) Run through the bore with a boresnake or boreworm with a bit of CLP or solvent once or twice.
6) You are done. The whole process takes less than 5 minutes.
Most important thing is, DO NOT OVER CLEAN. If it ain't broke, it doesn't need fixing. Just shoot the crap out of your Ruger and only clean when it begins to show signs of failure.
ATK.