You can find copies still being sold. They’re just expensive as all get out. $95 on Amazon for a paperback. $200 for hardcover.
Out of print, but apparently still in demand.
This book is largely why I got in to reloading my own ammo...
It was reprinted as a trade paperback.$44 here.... If you want it I suspect you might want to act quickly. :-)
The softcover is a recent release.
The hardcover was $1200 at Amazon a year ago. I have a pristine copy and then dragged my feet in selling it...