Befähigungsprüfung Waffengewerbe (Büchsenmacher) Practice Questions - Befähigungsprüfung Waffengewerbe (Büchsenmacher) (Austria) Exam

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Why is the Kersten fastener (Straßburger Verschluss / Doppel-Greener) particularly favored for high-pressure double rifles (Doppelbüchsen) and combination guns (Kombinierte Waffen)?

It eliminates the need for any underlugs (Laufhaken) or hinge pin (Scharnierstift). Its twin upper barrel extension lugs engage dual crossbolts high above the hinge pin axis, providing tremendous resistance against barrel opening torque (Aufkippmoment) and lateral spread. It enables fully automatic self-loading of consecutive shots. It is cheaper and faster to machine than standard single underlug sliding bolts.

Correct Answer:

Its twin upper barrel extension lugs engage dual crossbolts high above the hinge pin axis, providing tremendous resistance against barrel opening torque (Aufkippmoment) and lateral spread.

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