spot on barrel

[Kentuckywindage]

im LMF'ing a friends .54cal barrel and theres a couple darn spots that will not take. I used 80 grit sand paper to open the pores and this spot is about an inch long and will not take anything. He tried browning it before sending it to me and got the same results.

What can these spots be? I was thinking differences in the way the barrel was heated. Heat spots?

 

[paulvallandigham]

It could be differential heating, but its more likely some slag or some foreign metal that didn't get thoroughly mixed with the rest of the metal when it was first made into a billet.

Heat the spot up hot with a propane torch, and then brown it. With several applications, you should be able to match that "spot" to the rest of the browning on the barrel.

 

[Kentuckywindage]

sounds good. I figured that i would pick up some BC plum brown and if they dont take, a quick zap and be all finished.

 

[paulvallandigham]

Since you started with LMF browning solution, you might as well try to finish with it. I have not used LMF browning solution, as I have been perfectly happy with the color I get with the BC Plum Brown. But, I would be wary of using the two different compounds on the same barrel. I am not sure you would be able to match the results of the two different processes. At least from the barrels pictured on this forum, I don't see where the cold Brown LMF formula produces the same dark brown finish I get with the Plum Brown.

Just my thoughts. Let us know how it comes out.

 

[smallmouth]

My two cents here. Chuck Dixion's book actually suggests that you can start the browning with Plum Brown style hot then go to the cold -- kind of gets it started. Doesn't mention going the other way, but I see no why not. Take your time and keep at it till you got what you want.

Sirjohn

 

[bingo1952]

The BC Plum Brown is more of a chocalate color whereas the cold formulas tend to go a little more towards the red end of the spectrum.

 

[Kentuckywindage]

well i think i got over worried. i have 3 coats on it now and its taking color great.