Still sub moa but last time I took it out to range was feb 2020 just before pandemic. I borescoped after cleaning and stored it in safe until last week , when I found above issue. It did not have this 2 years ago. I used bore tech carbon and copper remover and generous oil before I packed it away in safe. Don’t know if my safe was too humid. I will take it out to range to see is accuracy suffered or not. Just shocked at how chrome plate split out. Maybe I left bore tech copper solvent in bore too long even though bore tech does not have ammonia?Accuracy?
Thanks. For those with chrome lined barrels, what is your cleaning regimen and what solvents do you use? Obviously my solvents and regimen does not work as video clearly shows...Plating is only a stop gap measure in the throat area. It does not defeat heat transfer to the barrel steel. Once the integrity of the plating is compromised oxidation/pitting begins. Just a fact with chrome moly barrels.
Yes. I think its required but on car and motorcycle parts they put it on extra thick to polish it smooth before chrome. Its like wet sanding high build primerI don't know how barrels are chromed but weren't car parts copper plated before being chromed.
Actually copper, nickel, and then chrome.I don't know how barrels are chromed but weren't car parts copper plated before being chromed.
That clears that problem nicely.The chrome on a car or motorcycle parts is nothing like the hard chrome used in the bore of a firearm.