New recruit here

I have an old barrel I'd like to reblue.
Can anyone tell me, is there any problem if I just submerged the entire barrel, rifling and all in the solution?
I know some people plug the ends, but why not just do the lot?
Thanks
Meek
meek wrote:I know some people plug the ends, but why not just do the lot?
Monty wrote:Or just skipping the work of plugging the throat/muzzle?
Monty wrote:1. Strictly speaking it bluing does add thickness to whatever you're bluing. I think it's something like a half of one thousandth of an inch... couldn't say if that has any appreciable impact or raises any safety issues due to reducing the internal diameter of the barrel, but there it is.