You may be able to find those A zooms in your caliber on Ebay.
I did that for my 458 lott, and better yet it was their 2nds, so I got functionally perfect snap caps in 458 lott for $2 a set, yes, $2 for two.
Bought 8 total and use them in my CZ 458 lott to practice and function test, they run through it perfectly.