8 Bore Pinfire

Licensed to kill said:
So Magtechs could be used??
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For standard bore stuff possible. Most pinfire a don’t have a rim or much of a rim. Biggest issue would be to make a cap holder for the cases being rather thin ballon head. with paper or plastic a .209 style cap holder can be used.

I haven’t fixed mine yet but I am probably just going to use plastic with a homemade cap holder and toy caps for primers.
 
Licensed to kill said:
So Magtechs could
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antiqueguy said:
For standard bore stuff possible. Most pinfire a don’t have a rim or much of a rim. Biggest issue would be to make a cap holder for the cases being rather thin ballon head. with paper or plastic a .209 style cap holder can be used.

I haven’t fixed mine yet but I am probably just going to use plastic with a homemade cap holder and toy caps for primers.
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Never had it handled a Pinfire so was unaware that they typically were rimless. No matter, rim can be turned off. Don’t think the cap holder would be difficult to make. For the record, I have converted all my Magtechs (.410, 20ga and 16ga) to 209’s (as well as the 303 Brit and .444 Marlin that are used as .410.)
 
Licensed to kill said:
So Magtechs could be used??
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The procedure is to enlarge the primer hole in the case, and make little brass inserts that are a push fit. The Magtech cases are semi-balloon head?
Don't know if they would work with this system. Maybe the primer pocket could be closed, and a cap holder fitted into the base of the case from the front.
 
tiriaq said:
The procedure is to enlarge the primer hole in the case, and make little brass inserts that are a push fit. The Magtech cases are semi-balloon head?
Don't know if they would work with this system. Maybe the primer pocket could be closed, and a cap holder fitted into the base of the case from the front.
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The Magtech accommodate 209’s well and I can’t see an issue making a cap holder to fit that hole. Not likely going to go there but you never know. Might try it “just because” to see how it goes but won’t have anything to try them in.
 
If the 209 primer pocket is large enough for a little brass plug that could hold a cap sideways, then it could work.
 
tiriaq said:
If the 209 primer pocket is large enough for a little brass plug that could hold a cap sideways, then it could work.
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I have a buggered up 16ga brass shell. I already bored it for 209’s so I might try it just to see. I guess the first order of business is to see how a #11 cap will fit sideways. If it won’t fit with room for a cup it’s a no go from the start. I would like to see a cutaway to show how they were made back in the day.
 
Where would you even start wrt one offing a big S×S reciever? 4140 HT? These require a lot of hand fitting. Is it worth it to get a CNC VS a manual machine for one offs? Respect. At one time there were several web sites which showcased completely home produced arms which were not the usual welded together scrap chair legs etc. They are mostly gone.
 
fat tony said:
Where would you even start wrt one offing a big S×S reciever? 4140 HT? These require a lot of hand fitting. Is it worth it to get a CNC VS a manual machine for one offs? Respect. At one time there were several web sites which showcased completely home produced arms which were not the usual welded together scrap chair legs etc. They are mostly gone.
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Manual would probably be all that’s needed I don’t see much point in having cnc unless you are making thousands of parts at a time.
 
Licensed to kill said:
I have a buggered up 16ga brass shell. I already bored it for 209’s so I might try it just to see. I guess the first order of business is to see how a #11 cap will fit sideways. If it won’t fit with room for a cup it’s a no go from the start. I would like to see a cutaway to show how they were made back in the day.
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IMG_3340.jpegIMG_3341.jpeg
 
fat tony said:
. Is it worth it to get a CNC VS a manual machine for one offs?
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Certainly not for everyone but I can’t count all tje things I have bought for a “ one offs” or expecting to use it a few times but after owning it it become indispensable. When you don’t own it, you don’t look to it to accomplish a task but when it is there, I find LOTS of things to do that I just would have done another, more difficult way had I not hade the “ specialty” tool. Don’t know if I explained that well but, like I said, not for everyone.
 
antiqueguy said:
View attachment 1063110View attachment 1063111
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I know this is outside of normal thinking (moreso) but I have thought it would be more repeatable to make custom cases with a seat for the primer on the circumference of the case with a flash hole incorporated instead of messing with the problematic 1860's solution they came up with. The Moore teat fire system - not exactly what I was thinking of, more like the 84mm Carl Gustav system. Has anyone seen a diagram showing the breakdown of the 84mm priming system, by the way?
 
The flash from the cap passes trough that little cut to ignite the powder. The cap is in upside down, the pointed end of the pin is against the primer compound.
The little index mark on the outside of the face allows the thing to be indexed properly so the pin can be inserted in contact with the cap.
 
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