I thought 69* were the small primers. I read that they also had a 57*, and seem to remember them....but I don't remember much about them.
Regarding the 97*, I've read are the same ballistically as the 209P and 209STS, except the 97* had an open flash-hole.
So this brings up another question. What was the primer used in Blue Peters Target Loads, i.e. the load the followed the Blue Magics and were advertised has having a "new hotter primer". That primer was called a 209something, but I can't remember what. Some claimed it was hotter simply because it was just a Federal 209 dressed like a Remington, and supplied to Remington by Federal.
Which brings up the 209T. Wasn't that the Federal primer for the Champion II hull?