After watching a number of cleaning videos, particularly for CZ 452, 455, and 457 rifles, I decided to invest in some new chemistry for cleaning them.
What I picked up was BoreTech Rimfire Fomula and BoreTech Carbon Remover.
I have been having some issues with my CZ457 MTR with accuracy dropping off even though I have been cleaning it with Hoppes regularly.I hate to see the groups open up and it was brought to my attention that it might be caused by a buildup of carbon in the barrel and chamber.
I had already cleaned this rifle using the Hoppes cleaners. I decided to go ahead and clean it again with the BoreTech Rimfire Formula.
I started with a dry patch to see what might be there and the patch came out clean.
I then began the recommended process of using the BoreTech. I ran the first wet patch through and took a look and oh boy was that patch dirty. It took 5 patches before one showed reasonably clean. I then ran a wet brush( synthetic/plastic) through the barrel about 10 passes and spun it by hand in the chamber to loosen stuff up. I then ran more wet patches through the barrel. It took 3 patches this time to get clean a clean looking patch.
I then left the rifle sit for 15 minutes.
I again ran a wet patch through the barrel. The first one was a little gray. The next was clean looking. I then ran a couple of dry patches through the barrel to remove the cleaner.
This cleaning method removed a lot of "stuff" from the barrel and chamber even after having been cleaned with Hoppes.
I can hardly wait to get back to the range to see if my groups improve.
I haven't tried the Carbon Remover yet. I will leave that for another cleaning session.
Does anyone else have stories about finding better cleaning products?