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"An interrupter lug—or “Chicklet”—on the bolt’s top (arrow) locks into a recess in the A17’s receiver. It keeps the gun locked until its carrier moves under recoil, allowing the bolt to open.""
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The bullet strike was a separate incident a few days earlier in another rifle. The suppressor had worked loose. Operator error. The little .17 bullet fragmented and punched a couple of holes in the...

Im not knowledgeable about that but as I understand it..

+Semi auto version of .17 rifles have been plagued with problems cycling.

+Savage completely redesigned the concept with their A17...

Here is a Winchester Primer from two days ago. Hand load for a .260. Right cheek powder burn which matched nicely to the left from a suppressor bullet stike in baffles resulting in a lot of powder...