Was curious if anyone has loaded any of these up for a .264 win mag? Load data seems hard to come by. Looking at the 129 grain bullet. Has a bc .571, thinking this would be a barn burner for mule deer.
They've only published one manual: Swift Bullet Company: Reloading Manual Number One.
It's currently out of print, but you can get a CD-ROM version from a few reloading suppliers (or directly from Swift). You can also try looking for a used copy, but there aren't many around and the going rate appears to be $70-150.
My Swift #1 is packed away right now. Otherwise, I probably would have offered some of their data.