Jack, I think it was 160 degrees. I have a laser thermometer that I use occasionally on the farm to check the temps on gearboxes, etc. that I will use to be sure I get the receiver temp right. It probably isn't that critical, but if Ithaca said 160, then that's what I will try.
I'll try to take some before and after pictures, including pictures of the one with the colors I'm attempting to match, and post them.
I totally understood that this is in no way like a "torch job" that heats very small areas to too high temps, but thanks for saying it again Miller. The differences need to be well understood by all interested in these things.