when I say hot, I mean heating with a cutting torch until it is cherry. The sleeve retainer is made to hold in hot places as well.

I agree with the screws possibly being a tad too long...I use clear finger nail polish instead of Loctite, it holds well and breaks loose when I need to change...

If this happens again, I'd go with JB Weld instead of silver solder...

Hubby11...I slow down in the summer heat and clean well between shots...Heat is hard on sabots as well, so it sometimes hurts your groups...Typically I carry several guns to shoot, so my inline can cool...

What is the working time with the 640 and do you apply it to both surfaces?
Thinking of using it on my Triumph.