Talk:Development/@comment-121.54.58.233-20150718181705/@comment-5380363-20150727024621

You can usually get an excess of these from the standard AP Shell crafting during regular daily construction. Recipe is 10/90/90/30. You can also get these from the Big Guns recipe for the 46cm Triple Mount (10/300/250/10).

I'd rather not get too many of them, though you'll probably need them for the 25mm Concentrated Deployment upgrade.