I’m gonna bet it’s either the Bolt Retaining Pin or the Cocking Piece Pin that broke. My guess is the Bolt Retaining Pin, as I’ve never seen a Cocking piece Pin break. And you likely have the larger diameter Firing Pin(which is the reason the retaining pins broke) But could be something else.

Bolt Retaining Pin: https://www.gunshack.com/savage-part...-retaining-pin

Cocking Piece Pin: https://www.gunpartscorp.com/products/1354170E

So, you may need a couple pieces, including the Firing pin.