I had a Holland and Holland 8 BORE double rifle recolor hardened after some pitting was removed and engraving recut. The action came back with a small crack in the front slot where the front barrel lug went in. The hardener (who I will not name) welded the crack and recolored. Second time it came out fine. It seems the larger the action the more chance of it becoming warped. When having a rifle color hardened in the USA you get what you get. Some reds and oranges sometimes that aren't on English hardened guns.
