Does anyone know how to get this thing to turn? I've heard of heading up the net, but that seems a bit iffy. I'm afraid the whole breech block would heat up. Suggestions welcome and appreciated.
I would not recommend heating up the breech. People have recommended using heat to break loose the permanent Loctite on shroud. The Loctite used on the hammer spring adjustment should have been blue Loctite , which is not permanent. You should be able to break it loose with the proper allen key.
I had to heat it with a butane torch to get it loose. The hammer spring screw has a hex hole for a 5mm hex key but the screw hole seemed really soft so heating it quickly made it possible to finally get it turned out. It may be possible to get it out without heat but I did not want to risk stripping the hex hole out. Also, I don't believe it is red loctite because it did not take much heat to get it broke free.
I made the same mistake also on my previous Boss, and rounded the hex nut. I used a micro propane torch, heated up the nut (not directly on the breech block), and it came loose quite easily. So, I'd suggest, heat it up for a couple of seconds, and give it a try. Try to do it gently, and don't use more heat than necessary.
The nut is too flimsy. It is like a piece of tin. I got mine out, but was not in best of shape. Mine is a 400, not 500, but must be the same. I put a 24" barrel on mine and had to back it out as far as it would go , or shorten spring.
It might be a "lever B", as well as your gun is tuned. The one on my unregulated 500 was loose enough that over time it would start backing out. I did apply a little blue Loctite on it though. jk
Rather than using any type of heating torch directly on the nut, a better method would be to heat a piece of steel bar and hold the heated end of the bar against the nut and let the heat soak into the nut itself to soften the Loctite, should only take a minute or two and would save heating the entire area with a torch which may lead to damaging the breech block if you are bit enthusiastic with the heating torch, I would prefer to be a bit cautious.
The hammer spring tension adjuster on my wildcat is frozen, won't budge. They must have used red locktite or something permanent because I tried a heatgun and a small propane torch. I even drilled two small holes in the outer area opposite of each other after the thin aluminum middle stripped out to insert needle nose pliers and get a better bite on turning it. No luck. I'm gonna leave it for now but I'll need to cut it out if I want to remove it and replace it with a new one, or have a more heavy duty one made