Bulged Barrel on shotgun

[Vart]

I have an old English, John Harper, SxS 12 ga. I was shooting off some old reloads in which the shot had fallen out. 1 round had a double explosion, as soft one followed by a louder one (seemed like a hang fire in a way) the second one created a bulge in the left barrel about 6" from the muzzle. Is this repairable or is it ok to still use with light target loads?

 

[rookieforever33]

Think about it this way. If its bad, its bad. Dont mess around with malfunctioning firearms. Go to a gunsmith, or keep as is for an ornament. Would be quite the story hanging on the wall.

 

[wyogoat]

Is it Damascus by chance since you said it was old and English?
Maybe you just unintentionally jug choked it and it will pattern great out of that barrel…