taiwanluthiers
Cast Iron
- Joined
- Dec 6, 2016
- Location
- Xinjhuan District, New Taipei City
Here is the action that I just almost finished from the blank that I bought from JP Longfellow a while back. I had previously made my own action without the use of any broaches, EDM, or shaper by using end mills, some engineering skills, a file, and a LOT of elbow grease. That rifle shoots really well considering... That put me off quite a while on touching JP Longfellow's blank (considering how much it costs) but I finally got to it. Most the machining was uneventful but I went a little too long on the ejection port (forgot to account for tool width) and as a result there's a huge gouge behind the ejection port on the rear bridge. Was hoping the scope mount will hide it.
I also messed up on the trigger. Basically the blueprint that I have to work with assumes a receiver diameter of 1.350" and JP Longfellow's blank is 1.450" in diameter. As a result much of the dimensions have to be changed on the fly and this really messes with hole locations. Last time I tried to index off of the center line the hole was too close to the raceways leading to a lot of grinding of the trigger assembly in order for the bolt to slide in. Well now I ended up with the opposite problem since I had moved the hole too much out, and the striker will not be held back at all by the trigger. I did everything I can to say elongate the hole with a 1/8" end mill but all it does is cause the end mill to bend (never underestimate how flexible a 1/8" end mill is!) so I got frustrated and milled the area out, drilled a hole in the milled out area, and screwed it in with a M3 bolt (I broke the tap too, I hate small taps) and now it works fine.
The only thing now is, I notice on a commercial Remington action, the front of the receiver and the rear of the receiver is not at the same level so scope bases for them are made to fit that. However now the scope holes are about .86" apart on both ends. On a factory Remington action the rear scope hole is much closer together. The question is, what commercial scope mount can I use, or do I need to make my own with Picatinny rail blanks?
I also messed up on the trigger. Basically the blueprint that I have to work with assumes a receiver diameter of 1.350" and JP Longfellow's blank is 1.450" in diameter. As a result much of the dimensions have to be changed on the fly and this really messes with hole locations. Last time I tried to index off of the center line the hole was too close to the raceways leading to a lot of grinding of the trigger assembly in order for the bolt to slide in. Well now I ended up with the opposite problem since I had moved the hole too much out, and the striker will not be held back at all by the trigger. I did everything I can to say elongate the hole with a 1/8" end mill but all it does is cause the end mill to bend (never underestimate how flexible a 1/8" end mill is!) so I got frustrated and milled the area out, drilled a hole in the milled out area, and screwed it in with a M3 bolt (I broke the tap too, I hate small taps) and now it works fine.
The only thing now is, I notice on a commercial Remington action, the front of the receiver and the rear of the receiver is not at the same level so scope bases for them are made to fit that. However now the scope holes are about .86" apart on both ends. On a factory Remington action the rear scope hole is much closer together. The question is, what commercial scope mount can I use, or do I need to make my own with Picatinny rail blanks?