I've used 44-40. I tend to get blotchy results but I think that is more reflective of my novice attempts than the product.Originally Posted by marlinmounter
But, it has held up well. I've read a lot about cold bluing not being as effective as hot bluing but I often wonder...I mean, when a smith does a barrel re-crown or other small work, they use cold bluing and no one thinks twice about it.
Maybe yours is a surface prep issue? Just tossing something out there is all.