I've got a bunch of American Rifleman magazines. If anyone can use them, here they are, Bandera / 1604 area. I don't want to put them straight into the landfill. 1960 - 2000, extensive, but not complete.
I had 20 years of them as well as other gun magazines. Sadly, they all were lost in a flood. Since then, I don't save them anymore; I distribute them. Whenever I go to a Doctor or Dentist office, I take several with me and leave them behind.
They published a letter this guy wrote in the 60's. He was curious how effective ultrasonic cleaning was. He ran an experiment with his bulls eye gun. He put a measured amount of a radioactive isotope in his 45 ACP loads and fired them. He measured radioactivity with his Geiger counter (of course he had a Geiger counter. Don't you?) before his regular cleaning and after. He did the same using ultrasonic cleaning. No significant difference.
I might be out that way tomorrow or the next day around 5 or 6 pm. If noone has them claimed and im in the area I will give you a call, drop me your number in a private msg if that sounds like a good time frame. @3AXBAT