Since I had to remove the stock of my Miroku M500 20-bore for repairs, I thought I would take a few photos while everything was exposed.
Safety ON. Vertical post impinges on raised sections of trigger bars so triggers can’t be pulled.
Safety OFF. Vertical post now in front of raised sections of trigger bars which can be lifted and triggers can be pulled.
Two large screw heads under top bar of action. The further screw holds the V spring for the top lever. The closer screw sits in an elongated slot which allows the safety mechanism to move fore/aft.
General view of action. Shadowed slot under the left side plate houses the left striker (internal hammer). These aren’t ‘side plates’ according to the strict definition but it’s a useful term under the circumstances.
Left striker (in fired position) under left side plate. Surprisingly, the total forward movement of the head of the internal hammer on firing is no more than 1cm (2/5th of an inch).
Left striker in cocked position.
Both strikers in cocked position
Lighter coloured horizontal oblong at rear of action is the back of the Purdey locking bolt which moves to the rear when the top lever is pushed to the right.
Threaded hole in the very rear of the frame accepts the long bolt which hold the stock in place. The bearing surface around the threaded hole is very small. If you drop your shotgun, as I did, there is every chance that the metal surface will push back into the head of the stock, forcing the ‘wings’ apart, cracking the wood.
Brown colouration inside the action isn’t rust, it’s red dust from the inside of the stock trapped in lubricant.
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