I think I'm seeing the diameter and my brain, even though I know it, is thinking "oh 16 and 17 grain."Neither my friend, in .22 JSB makes the 25.39gr KO slugs in .216, .217, and .218.
I believe the brand you're thinking are Rifle Slug Series, they make a 18.13gr slug.
Also a gentlemen from Florida has a online site his brand of slugs is Tremor and he makes 18gr slugs as well, I have 2 tins of those.
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