A bulk box of the primed cases will last most a lifetime. I been working on mine since the early 80's and I still have more then 1/2 left and I gave a bunch away.
The long range .22 silhouette shooters used these primed cases to get a more powerful long rifle load before the .22 mag was excepted for this type of shooting.
Baja that is a fine looking bullet. Let us know how they shoot.
4 grains of 3F KIK seems to work very good for me with out fouling control.
I give the bullet a light coating of straight lanolin by rolling them over a case lube pad.