Can you reward him with some peanuts???
hahaha...like this?
@spife7980 , et al
Ok, got some more pics but I think my Teslong is defective. Note in the pic I posted originally in this thread that you can see the ribbed stem of the side view mirror and when I moved the mirror out further to get better focus, it all got a bit worse. I have talked to Teslong, they asked for pics, the CS rep said "dunno what this is, this should not be happening, I'm escalating to our engineer". So, in the pics below, please excuse the continued awful quality. They are also kind of dark as the higher the lighting the worse the symptoms of the issue.
I tried the empty cartridge and scope from the muzzle but with a 25" barrel and a muzzle brake, the Teslong didn't reach far enough. Its a self-timing Pierson's brake and I can take it off (supposedly), but I have a clinic coming up in 7 weeks or so and do NOT want to fuck up this rifle. Be my luck that I would twist the barrel loose trying to get the brake off. Well, if that did happened, then there must be some bad juju in how barrel was torqued on so its not a very imminent danger, I think.
this is the free bore/throat. Its clean
Here is step down where the neck should end (more or less) and it is also clean from there forward into the throat.
Here is the first "ring" which is a bit back from where the chamber indicates the end of the neck. Now, I did shoot some reloads trimmed with my friend's Gerard which was set for 1.90" instead of SAAMI 1.91" (I beleive). And, it really ain't much to worry about at all.
Here are the darker rings I first posted and indeed they are further back in the chamber yet and I suspect you are exactly right that its just a bit of a dirty chamber as its not where near where the chamber indicates should be the end of the neck.
By the by, its easy to find the step down in the chamber for the end of the neck as I can feel it with the Teslong probe. Easy peasy and Robert's your Mother's Brother (sorry, last job before I retired was for an UK company....a few British-isms stuck with me haha)
So, I think this is showing that I don't have any immediate carbon ring problems to address. Are we agreed on that with this new data?
Cheers (really the only British-ism I spout regularly as it really is useful and beats the hell out of long goodbys)