I recently had a tikka bolt release pin break during a normal bolt cycle. I cycle my bolt as I imagine most do, quickly and aggressively to be ready for a follow up. This is my first and only tikka and have never noticed this pin before it broke. My action was professionally bedded in an aftermarket stock. The stock has a shelf for the bottom of this pin to rest on, which it was resting on after it was broken. The top part of the broken pin was missing, I found the black finger mechanism and spring on the ground.
After receiving my new pin and installing it, I noticed something seemed odd to me. When installed this pin goes through a hole, then through the finger mechanism and into a small hole in the action above the mechanism. It sticks out the bottom as much as seen here when properly installed.
![Screenshot 2024-07-25 at 11.50.17 AM.png Screenshot 2024-07-25 at 11.50.17 AM.png](https://forumdata.rokslide.com/file/forumdata/data/attachments/717/717626-a6cec0cd5ac8cdbe13cbfb653c205e38.jpg)
My pin was sticking out about 1/4-3/8" lower than seen here because the shelf in my stock sits that much below the pin when the pin is properly installed, meaning it drops to rest on the shelf. This appears to me to result in the pin dropping out of the top hole and resting still within the finger mechanism. I confirmed this by the new pin (properly installed) dropping the same amount when installed after manipulating the bolt release mechanism a couple of times. In the pic below it drops to about the bottom red line. When the pin falls out of the top hole, it puts a force on the pin it was not designed for, resulting in what I think caused the breakage.
I![Screenshot 2024-07-25 at 11.50.17 AM.png Screenshot 2024-07-25 at 11.50.17 AM.png](https://forumdata.rokslide.com/file/forumdata/data/attachments/717/717627-4d662359ecc0797c0be1d447e7cc1a5c.jpg)
After recognizing this, I put some bedding compound on the shelf up to the height of the properly installed pin. You can see in the picture, the bottom of the bedding compound (lower red line) is the top of the normal shelf. The pin now sits just a hair above the bedding compound. I added just under 3/8" of compound.
![IMG_2815.jpeg IMG_2815.jpeg](https://forumdata.rokslide.com/file/forumdata/data/attachments/717/717629-e7abe88479ed9fc6023708831513f8b0.jpg)
I have very little experience with this kind of stuff. Does what I am saying make sense? Does this fix seem appropriate? Thanks for any feedback.
After receiving my new pin and installing it, I noticed something seemed odd to me. When installed this pin goes through a hole, then through the finger mechanism and into a small hole in the action above the mechanism. It sticks out the bottom as much as seen here when properly installed.
![Screenshot 2024-07-25 at 11.50.17 AM.png Screenshot 2024-07-25 at 11.50.17 AM.png](https://forumdata.rokslide.com/file/forumdata/data/attachments/717/717626-a6cec0cd5ac8cdbe13cbfb653c205e38.jpg)
My pin was sticking out about 1/4-3/8" lower than seen here because the shelf in my stock sits that much below the pin when the pin is properly installed, meaning it drops to rest on the shelf. This appears to me to result in the pin dropping out of the top hole and resting still within the finger mechanism. I confirmed this by the new pin (properly installed) dropping the same amount when installed after manipulating the bolt release mechanism a couple of times. In the pic below it drops to about the bottom red line. When the pin falls out of the top hole, it puts a force on the pin it was not designed for, resulting in what I think caused the breakage.
I
![Screenshot 2024-07-25 at 11.50.17 AM.png Screenshot 2024-07-25 at 11.50.17 AM.png](https://forumdata.rokslide.com/file/forumdata/data/attachments/717/717627-4d662359ecc0797c0be1d447e7cc1a5c.jpg)
After recognizing this, I put some bedding compound on the shelf up to the height of the properly installed pin. You can see in the picture, the bottom of the bedding compound (lower red line) is the top of the normal shelf. The pin now sits just a hair above the bedding compound. I added just under 3/8" of compound.
![IMG_2815.jpeg IMG_2815.jpeg](https://forumdata.rokslide.com/file/forumdata/data/attachments/717/717629-e7abe88479ed9fc6023708831513f8b0.jpg)
I have very little experience with this kind of stuff. Does what I am saying make sense? Does this fix seem appropriate? Thanks for any feedback.
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