Sheridan Diabolo Pellets and my Beeman R10D in .20

Does anyone out here remember this pellet from decades ago. After trying many other pellets and this was many years ago, this pellet/springer combination was the holy grail of springers. I was going through some of my air gun stuff and I ran across this lid from an old tin that I had other stuff in. If I could ever find these pellets again, I think I could afford give my pcps a rest for a few weeks!

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