Are there any double rifle regulation experts here?

[Ironoxide]

https://www.amazon.com/Swpeet-Polis...ewelry+polishing+dremel&qid=1625423367&sr=8-8
I have used something like the above with good sucess. These will peal the solder right back and not harm the steel as long as you dont get heavy handed.

Easy way to clean it up.

Fleener

Thanks. I ordered them for future.

I managed to remove a lot of the solder manually (with a sharp scraper made of brass), but some is remaining.

I also shot the fully soldered barrel and after few test shots it seems good. I'll know for sure when I shoot more.

 

[Britsmoothy]

Sorry I missed your last update .
Please keep the updates coming.
Will not a steel scraper remove the soft tinning?

 

[Ironoxide]

Sorry I missed your last update .
Please keep the updates coming.
Will not a steel scraper remove the soft tinning?

No worries I think it would, but it may also scratch the barrels if it slips. While the brass one was quite safe (but left a little tin).

At the moment Im concentrating on shooting the gun to make sure I like it. Then I'll give it some time just in case and then finish.