Since it was likely my comment on "over cleaning" let me explain.
There are several trains of thought on cleaning.
The military love clean guns, it has nothing to do with accuracy but everything to do with reliablity. Your life and those around you depend on that rifle firing everytime you pull the trigger. Not half the time, not even some of the time, every time. So you do as the good MCpl says and clean and maintain your rifle everyday.
Next we have Benchrest shooters. They love to clean their bores, then fire fouling shots so hopefully their bullets form a very tiny group. Nothing wrong with this, they get the results they are looking for.
Next we have fullbore shooters. Years ago they shot DND issued ammo, it is dirty, has black sealent on the bullets and whatever copper was in the pot bullet jackets. Cleaning every day was a necessity with old chrome moly barrels.
Now they are shooting stainless match barrel, with better jacketed bullets and cleaner burning powder. The DCRA matches are going on right now and you can bet some of those guy will not clean their barrels for the entire match (10 days of about 50 rounds a day) Some guys will clean every night but the majority won't. Some will only clean when the groups start to open up. While others have a round count that they clean after.
If you are caught in the rain during a match, rifles are dried off, oiled to prevent rust, removed from the stock and dried out and a couple dry patches down the barrel.
After the barrel is cleaned it can take a few rounds to settle in and start shooting "on call" again.
There really isn't anything wrong with being meticulous and diligent in your cleaning routine but I don't feel it is necessary. For me I know that with a fouled bore where my first shot will go the next day or two weeks from now. With a clean bore you never really know for sure. I have gone over 800 rounds without cleaning the bore and still won weekend matches.
