well don't feel bad about sticking a swab in a bore. I found that when that happens it is usually caused because there;
[ul][*]was not enough moisture on the swab.[*]the cloth patch was too large (if you cut your own)[*]the patch was pushed down the bore in too long of a stroke too fast[/ul]
I like to work that wet patch about two inches at a time working it back and fourth to make sure it is cleaning the crud off that part of the barrel before moving it down further in the bore. When you reach the crud ring, you will feel it. This is where you really have to slow down and take short strokes, scrubbing back and fourth until the crud ring is removed. Then a couple dry patches and your done.

It sounds like you have a great load worked up already and the rifle is shooting excellent. Nice going. Always nice when a rifle tunes in fast. Good luck with your shooting.