From the pictures here I'm trying to decide what it is that you see as a problem. When the action is levered, the bolt slides rearward engaging the hammer to cock the rifle. You will notice that the lower rear of the bolt has a protrusion that exceedes that of the rack on the bolt. This allows the cocking mechanism to engage via rear bolt contacting the hammer but allows clearance between hammer and rack once rifle is cocked. Almost all exposed hammer actions work this way.
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