Got a bunch of these in a big box of older reloading stuff. Not familiar with them. 22 cal 55gr soft point. Just curious if anyone knows who manufactured them? Thanks in advance

They were made by Nosler a long time ago.
They called them Zippido's.

I have some for two of my rifles and they are tough,good bullets.

Yep, Nosler Zipedo's. my 243 really liked the 75 gr version. I was the precursor to the Ballistic Tip with a solid base and those driving bands. The 75 and 85 gr in 243 expanded very easily. It seems I was loading them around the '72-'76 time frame.

Appreciate the info fellers. Found out all about them on the google.