Hallo guys.
Today for first time I cleaned my S&W 640, so wanted to come by and ask for some advice.
I used multi purpose Ballistol for cleaning and lubrication. First of I took of the grips, as there was a lot of dirt around them. Secondly I applied ballistol with a tooth brush all over the gun, so it could start to dissolve dirt a little bit. After that I took the metal brush that came in my brush kit (not sure if it is "bronze" or brass or something else) and run through the barrel from crown to forcing cone. At the end of the first run I realized that my brush is too long and I cannot run it all the way though, also, I noticed that this metal brush needed a lot of force to run through the barrel which seemed a bit odd, although this was first time I ever cleaned a gun, so what do I know, anyhow I was afraid of damaging the barrel so I changed the brush. Second time I used the other (possibly nylon or whatever - photo posted previously in this thread) brush - went through the barrel few times. Then cut up my old cotton T-shirt and used it for patches - went through few times with those. After that I repeated this process for all five chambers using that softer (black nylon or whatever) brush. After that I took a toothbrush and brush all around the gun and at the end wiped off the ballistol with a microfiber cloth. After this I once again used my home setup to test the trigger pull because it seemed lighter - it actually was 15,4lbs (7kg). Not sure why it got lighter, possibly because some ballistol got into the action. Today I didn't take of the cover to clean the gun from inside because I lacked confidence to do it the first time I clean a gun.
Here are few questions:
1) Is it ok that I cannot run the brushes fully though the barrel or should I definitely find a shorter brushes so I can run them fully through the barrel?
2) Is that metal brush ok to use for cleaning (it goes though with quite a push)?
3) Can my toothbrush damage crown or chambers when I use it to brush of all around the gun?
4) Can I use ballistol to clean my rubber grips?
5) Could it be that there was a glue on the perimeter of the grip inner surfaces so that both halves of the grips stick together?
Here are few pictures - what can you say about the barrel - is it ok?
It seems that there are some little scratches inside the barrel (at the crown and at the forcing cone), also it seems that there is a little pitting (one hole) near the crown, I'm not sure though, because I cannot see with my own eyes everything that is in these pictures (taken with my S4 mini mobile phone).
Should I clean the barrel and chambers one more with that metal brush? Can that brush ever damage barrel or chambers?
Thanks