CVA Kentucky Rust Blue Barrel Prep

[bacarper]

Hello All,

I have a few other threads regarding using LMF for rust bluing but thought I'd tackle this question with a new thread. I'm hoping I can get some opinions on the attached image. The rest of the barrel has been sanded down to 400 grit but I have this weird "pit" near the back end of he barrel. It looks to me like when the "breech" (sorry if this isn't the right terminology) was installed or maybe welded, this pit was left behind.

Ascetically, it doesn't bother me and I'm okay with moving forward with the browning/bluing, I'm just wondering if it will cause any major issues down the road or if the LMF solution could get trapped in there and pit out. I've seen similar defects in other CVA kit barrels but I'm concerned I'll have to remove too much material to try and sand it out.

As always, thanks in advance for all the help!

 

[Pete G]

I would drawfile it out.

 

[bacarper]

I would drawfile it out.

Thanks for the input! Why the vote on filing it out?

 

[waksupi]

Thanks for the input! Why the vote on filing it out?

Because that's the way you deal with that.

 

[bacarper]

Because that's the way you deal with that.

haha fair enough - Draw filing took care of it. I was just concerned it may be a void during the construction and filing more would open it up further.

 

[waksupi]

haha fair enough - Draw filing took care of it. I was just concerned it may be a void during the construction and filing more would open it up further.

If there was a void there, I would sure want to know for sure!

 

[stikshooter]

Hello All,

I have a few other threads regarding using LMF for rust bluing but thought I'd tackle this question with a new thread. I'm hoping I can get some opinions on the attached image. The rest of the barrel has been sanded down to 400 grit but I have this weird "pit" near the back end of he barrel. It looks to me like when the "breech" (sorry if this isn't the right terminology) was installed or maybe welded, this pit was left behind.

Ascetically, it doesn't bother me and I'm okay with moving forward with the browning/bluing, I'm just wondering if it will cause any major issues down the road or if the LMF solution could get trapped in there and pit out. I've seen similar defects in other CVA kit barrels but I'm concerned I'll have to remove too much material to try and sand it out.

As always, thanks in advance for all the help!

200 grit is where i stop!/Ed

 

[deerstalkert]

i would worry more about the hole on the wrong side of the barrel!
seriously though 400 grit tends to make for a splotchy finish for some reason.

 

[bacarper]

i would worry more about the hole on the wrong side of the barrel!
seriously though 400 grit tends to make for a splotchy finish for some reason.

haha Nice catch - I flipped the picture when I transferred it to the computer

 

[waksupi]

I've prepped hundreds of firearms for bluing or browning. 320 grit seems to be the sweet spot for sanding. Consistently good finish. Going to finer grades of sandpaper takes too much of the "tooth" from the metal, resulting in poor looking finish, if you can get it to stick at all.