Per Kent Bellah's article in the May '59 GUNS magazine, the Harvey .224 K-Chuk was a K-Hornet trimmed .050". Bellah also mentioned it in a couple of his articles in GUN DIGESTS of the period as well.

In his literature dated January '63, Harvey states that "Some time ago we discontinued the blown out case, the original variety, because of reloading problems.

The standard Hornet case is shortened or trimmed .050"."

Do you have a K-Chuk conversion?

Hope this helps.

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Good shooting.