I was wondering the advantage of using a davcon over a JB weld from my local hardware store. I bought some JB weld that had a PSI rating of 5000 for a bolt handle conversion on a stock but when it was time to bed the rifle I ordered some davcon and when it showe up it had a PSI rating in the mid 2000's. Does this PSI rating refer to the hardness and if so would the JB weld I found be better to use for the bedding job.