emtrescue6--Many thanks. I don't know why I did not think of trying there. I did not realize that the gun was that old. I have been told that the cracked forearm issue was largely caused by screwing the retainer nut down too hard. I was told to tighten it until it was firm, then back it off a click. I always had mine set for low power ammo and just shot the cheap one oz. loads. The brass ring that goes around the mag. tube is not easy to figure out. If it needs changing, you need to find directions on how to set it. That is a minus with these old guns. But they were beautifully made. Thanks again.