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Re: Finished the 7mm pinfire
Posted: Thu Jan 16, 2025 9:12 am
by GrapeApe
DAMN...
I'm not aware of any "good" (FP) .510" moulds
Not sure a "sleek" pointed .510" at BP speeds would be very good for taking game
Re: Finished the 7mm pinfire
Posted: Thu Jan 16, 2025 1:02 pm
by Bigslug
Justsomedude wrote: āThu Jan 16, 2025 8:14 am
Well, after doing some research and because of overpopulation, 45acp blanks are out of stock everywhere unless I put in a special order and wait forever
. But I do have a 50 caliber blank at the shop right now. I reckon I could stick to the plan but make it a 50 caliber and use 50 Alaskan brass. It would actually be a .510 diameter bullet but again, pinfires aren't firearms. I think that would be one helluva thumper.
My dad came up with a Civil War Maynard carbine a few years ago. Basically a modern .51-52" caliber brass cartridge with a REALLY wide rim for manual extraction and a flash hole instead of a primer pocket to receive the flame jet from a musket percussion cap - or, in some cases, the patented Maynard tape primers. Pretty simple design that was sturdy enough to make the transition to the postwar black powder target cartridge era. Might be a place to start. I don't think it would be too challenging to make a pinfire version.
Or maybe a side-swinging action with an under=hammer? Hammer probably wants to be on the gun's centerline, and underneath would keep it out of the line of sight.
Re: Finished the 7mm pinfire
Posted: Thu Jan 16, 2025 6:53 pm
by Justsomedude
Another correction. The 50 barrel I have is an actual 50, not a 510 bore. That changes things again. I have a plethora of 500 s&w magnum brass that would work well but I was hoping for something with more powder capacity.
Re: Finished the 7mm pinfire
Posted: Thu Jan 16, 2025 6:56 pm
by Justsomedude
Bigslug wrote: āThu Jan 16, 2025 1:02 pm
Justsomedude wrote: āThu Jan 16, 2025 8:14 am
Well, after doing some research and because of overpopulation, 45acp blanks are out of stock everywhere unless I put in a special order and wait forever
. But I do have a 50 caliber blank at the shop right now. I reckon I could stick to the plan but make it a 50 caliber and use 50 Alaskan brass. It would actually be a .510 diameter bullet but again, pinfires aren't firearms. I think that would be one helluva thumper.
My dad came up with a Civil War Maynard carbine a few years ago. Basically a modern .51-52" caliber brass cartridge with a REALLY wide rim for manual extraction and a flash hole instead of a primer pocket to receive the flame jet from a musket percussion cap - or, in some cases, the patented Maynard tape primers. Pretty simple design that was sturdy enough to make the transition to the postwar black powder target cartridge era. Might be a place to start. I don't think it would be too challenging to make a pinfire version.
Or maybe a side-swinging action with an under=hammer? Hammer probably wants to be on the gun's centerline, and underneath would keep it out of the line of sight.
That's an interesting concept that I'd love to see. It doesn't surprise me that it worked. People don't realize just how damn hot musket caps are. But I already have the rifle built in my head, granted I'll make small corrections along the way as required. As I always say, if I put it on paper it will never work. I just have to build it.
Re: Finished the 7mm pinfire
Posted: Thu Jan 16, 2025 7:27 pm
by CPJ 2.0
You can always make cases from scratch from brass tube.
Cut to length the proper diameter tube, solder a plug in the ass end.
Re: Finished the 7mm pinfire
Posted: Thu Jan 16, 2025 8:40 pm
by Justsomedude
CPJ 2.0 wrote: āThu Jan 16, 2025 7:27 pm
You can always make cases from scratch from brass tube.
Cut to length the proper diameter tube, solder a plug in the ass end.
This is probably going to be the route I take to get the case capacity that I want. It's a custom rifle so it might as well be custom ammo too. I think something that looks like this would be nasty on deer.
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Re: Finished the 7mm pinfire
Posted: Thu Jan 16, 2025 9:37 pm
by GrapeApe
Justsomedude wrote: āThu Jan 16, 2025 8:40 pm
This is probably going to be the route I take to get the case capacity that I want. It's a custom rifle so it might as well be custom ammo too.
I think something that looks like this would be nasty on deer.
20250116_153419.jpg
I disagree about that bullet. I doubt you'll be able to to push it fast enough for reliable expansion, and the small "me-splat" isn't going to do much damage as the rest of the bullet just slides the tissue out of the way.
Something along these lines, especially the HP, cast from pure lead to
maybe 30 or 40:1 would do a much better job IMO
https://noebulletmolds.com/site/513-450-rf/
Re: Finished the 7mm pinfire
Posted: Thu Jan 16, 2025 10:25 pm
by GrapeApe
Re: Finished the 7mm pinfire
Posted: Fri Jan 17, 2025 4:55 am
by GrapeApe
Since you're going .500" instead of .510, I think the HP version above. would perform nicely
Re: Finished the 7mm pinfire
Posted: Fri Jan 17, 2025 5:33 am
by Justsomedude
Yeah that 404 grain looks like the winning ticket. That sitting on 75 grains of 777 will likely be a winning combination. We can call it the 50 JSD
Re: Finished the 7mm pinfire
Posted: Fri Jan 17, 2025 1:53 pm
by GrapeApe
50 JSD-PF...
Gotta add the PF, for Pin fire
and even 60-70gr should give good penetration & expansion, if they're cast soft enough. They ought to pack quite a punch.
Re: Finished the 7mm pinfire
Posted: Mon Feb 17, 2025 11:10 pm
by Justsomedude
Dicking around again today. Made this with 500s&w brass. The bullet is just for show. I'd use the 404 grainers that GrapeApe linked to. With the 404 grainers, it'll hold 60 grains of FFF powder. So I guess a 50-60 pinfire it is Also found a wooden stock that I'll be able to cut and use instead of working one from scratch so now I can order my materials for the reciever with the width measurements.
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Re: Finished the 7mm pinfire
Posted: Tue Feb 18, 2025 1:51 am
by Bigslug
NEAT!
That NOE mold of Grape Ape's looks like an upscaled copy of Keith's .45 Auto Rim bullet - the Ideal/Lyman 452423.
Lefaucheaux pinfire of the 1850's meets Elmer Keith bullet of the 1930's meets S&W X-frame brass of the 2000's. . .
PLEASE put an M-lok & Picatinny rails, flashlight, and red dot sight on this thing!!
Re: Finished the 7mm pinfire
Posted: Tue Feb 18, 2025 1:59 am
by Diver43
Is that a single shot?
Re: Finished the 7mm pinfire
Posted: Tue Feb 18, 2025 3:31 am
by Wambli Ska
Iām really liking this project
Re: Finished the 7mm pinfire
Posted: Tue Feb 18, 2025 4:17 am
by Justsomedude
Diver43 wrote: āTue Feb 18, 2025 1:59 am
Is that a single shot?
It will be a falling block, of sorts. Single shot
Re: Finished the 7mm pinfire
Posted: Tue Feb 18, 2025 4:19 am
by GrapeApe
Wambli Ska wrote: āTue Feb 18, 2025 3:31 am
Iām really liking this project
I'm still hoping to have the chance to bloody it this fall on a deer
Re: Finished the 7mm pinfire
Posted: Tue Feb 18, 2025 4:21 am
by Justsomedude
Bigslug wrote: āTue Feb 18, 2025 1:51 am
NEAT!
That NOE mold of Grape Ape's looks like an upscaled copy of Keith's .45 Auto Rim bullet - the Ideal/Lyman 452423.
Lefaucheaux pinfire of the 1850's meets Elmer Keith bullet of the 1930's meets S&W X-frame brass of the 2000's. . .
PLEASE put an M-lok & Picatinny rails, flashlight, and red dot sight on this thing!!
Hell, someone was already upset with me that I modified the 7mm pinfire just to make it function lol. They'd have a stroke if I did that
Re: Finished the 7mm pinfire
Posted: Tue Feb 18, 2025 4:29 am
by Justsomedude
GrapeApe wrote: āTue Feb 18, 2025 4:19 am
Wambli Ska wrote: āTue Feb 18, 2025 3:31 am
Iām really liking this project
I'm still hoping to have the chance to bloody it this fall on a deer
It be heading your way when it's finished so you can make me proud! Also wanted the opinion on round barrel or hexagon, or octagonal?
Re: Finished the 7mm pinfire
Posted: Tue Feb 18, 2025 4:49 am
by CPJ 2.0
Justsomedude wrote: āTue Feb 18, 2025 4:21 am
Bigslug wrote: āTue Feb 18, 2025 1:51 am
NEAT!
That NOE mold of Grape Ape's looks like an upscaled copy of Keith's .45 Auto Rim bullet - the Ideal/Lyman 452423.
Lefaucheaux pinfire of the 1850's meets Elmer Keith bullet of the 1930's meets S&W X-frame brass of the 2000's. . .
PLEASE put an M-lok & Picatinny rails, flashlight, and red dot sight on this thing!!
Hell, someone was already upset with me that I modified the 7mm pinfire just to make it function lol. They'd have a stroke if I did that
Perfect. Let them stroke.
Re: Finished the 7mm pinfire
Posted: Tue Feb 18, 2025 4:53 am
by Bigslug
Justsomedude wrote: āTue Feb 18, 2025 4:29 am
GrapeApe wrote: āTue Feb 18, 2025 4:19 am
Wambli Ska wrote: āTue Feb 18, 2025 3:31 am
Iām really liking this project
I'm still hoping to have the chance to bloody it this fall on a deer
It be heading your way when it's finished so you can make me proud! Also wanted the opinion on round barrel or hexagon, or octagonal?
Octagonal: better flat surface for the Pic rail and red dot. You can even use the taper as your long range 20 MOA slant base.
Better still, put one of those side attachments on the Pic rail to hold your ballistic computing cell phone. I wanna see just how many anachronisms we can put on this thing!
Somewhat, and only somewhat, more seriously, it WOULD be cool if you could work in some kind of ejector assembly that engages on whatever part of the pin remains outside the case after firing.
Re: Finished the 7mm pinfire
Posted: Tue Feb 18, 2025 5:50 am
by Justsomedude
CPJ 2.0 wrote: āTue Feb 18, 2025 4:49 am
Justsomedude wrote: āTue Feb 18, 2025 4:21 am
Bigslug wrote: āTue Feb 18, 2025 1:51 am
NEAT!
That NOE mold of Grape Ape's looks like an upscaled copy of Keith's .45 Auto Rim bullet - the Ideal/Lyman 452423.
Lefaucheaux pinfire of the 1850's meets Elmer Keith bullet of the 1930's meets S&W X-frame brass of the 2000's. . .
PLEASE put an M-lok & Picatinny rails, flashlight, and red dot sight on this thing!!
Hell, someone was already upset with me that I modified the 7mm pinfire just to make it function lol. They'd have a stroke if I did that
Perfect. Let them stroke.
Oh, you....
Re: Finished the 7mm pinfire
Posted: Tue Feb 18, 2025 5:55 am
by Justsomedude
Bigslug wrote: āTue Feb 18, 2025 4:53 am
Justsomedude wrote: āTue Feb 18, 2025 4:29 am
GrapeApe wrote: āTue Feb 18, 2025 4:19 am
I'm still hoping to have the chance to bloody it this fall on a deer
It be heading your way when it's finished so you can make me proud! Also wanted the opinion on round barrel or hexagon, or octagonal?
Octagonal: better flat surface for the Pic rail and red dot. You can even use the taper as your long range 20 MOA slant base.
Better still, put one of those side attachments on the Pic rail to hold your ballistic computing cell phone. I wanna see just how many anachronisms we can put on this thing!
Somewhat, and only somewhat, more seriously, it WOULD be cool if you could work in some kind of ejector assembly that engages on whatever part of the pin remains outside the case after firing.
So I need a drop calculator AND a thermal, along with 45Ā° backup sights, just incase I get caught in a gunfight at night
But on a serious note, I was considering a spring loaded ejector that would push on the base of the pin and be actuated when the lever is opened. That depends on how anxious and impatient I get when it's close to being done. Not really necessary but it would be cool to have on there. And I'm going to hot blue this when I'm done. I think that'll look slick. Wait til y'all see how I do the hammer and trigger. I've never seen it done before and I think it'll work superb.
Re: Finished the 7mm pinfire
Posted: Tue Feb 18, 2025 6:19 am
by Justsomedude
I also realized something yesterday. I can make a pinfire shotgun pistol in whatever gauge I'd like, smooth bore and all since pinfires and their ammo aren't firearms or firearm ammo. A SxS pistol would be pretty slick in 16 or 20 gauge. It would be easy to make the brass from scratch and either 3d print the rest of the hull or use cardboard and epoxy it. A guy could even use smokeless just as a middle finger to you know who.
Re: Finished the 7mm pinfire
Posted: Tue Feb 18, 2025 6:31 am
by GrapeApe
Concerning the barrel contour.. Builders choice
. But I do have a 50 caliber blank at the shop right now. I reckon I could stick to the plan but make it a 50 caliber and use 50 Alaskan brass. It would actually be a .510 diameter bullet but again, pinfires aren't firearms. I think that would be one helluva thumper.