I started a thread on the bullet some time back, it is the old Ray Thompson gas check bullet, with two crimp grooves to facilitate loading ..357 loads in .38 special brass.
I loaded a hand full of these bullets in 9mm brass over 4 gr. of Unique seated to the bottom crimp groove. Weight in my alloy is 162 gr. without a gas check. COL is 1.122. These feed and function nicely in my Ruger P89, I finally got around to chronographing them with mixed brass they run between 1000-1050 fps. Primers are a little flat but other than that no pressure signs.