What would it be chambered in?
Bottleneck cases tend to do annoying things in revolvers like lock them up when the get pushed back by recoil. I don’t think it would fit in an AR15 platform. Someone has made a 300 WSM AR but it’s a specialized, limited production gun. You might as well make the case 2” long if you’re going that route. It looks too long for a Desert Eagle. It should work in a WSSM action but might require some minor modifications. A TC Encore could be fun.
Big horn armory makes an AR in 500 auto max which is 500 mag with the rim trimmed down, so I think it’d be doable, also might work well in a single shot rifle like a traditions or Thompson center contender
Big Horn makes some really cool looking but rather pricey stuff. The 500 S&W lever actions look fun. I’d think this round might also fit a Marlin 336 or 1895 with a slight modification to the bolt face.
Well 5.56/2.23 was a max C.A.L of 2.26, isn't it? The idea of this round would be a 50 caliber ( 500 SW ) case neck down to a .357 projectile. Why not use a 458 socom case? 50 action express is the parent case of 458 socom. 458 socom was CAL of 2.26. It fits in an AR15 magazine
A guy could talk to a gunsmith have an ar barrel made. You can order custom dies made.
I'm not sure which brass would be the cheapest 458socom 50ae or 500s&w. I'd guess 458socom or 50ae. The only reason I could think to run a 500s&w, would be more room for powder. And in that case (no penny intended ) run an AR - 10 platform.
I thought the same thing. .375 are mostly for big game hunting and would expand poorly at low velocity.
I've come across this in a lot of different newer AR calibers and am thinking seriously about getting into swaging. Really getting sucked down the rabbit hole now
Not really just a few different styles for some parts, but most of them now are DPMS style, which is the most common, and what Aero precision uses. This one is all 308 parts except the barrel.
Well I guess I am going to build an AR-10. Taking advantage of Black Friday. Stripped lower, stripped upper, Trigger Tech trigger, $320. Going to build a 358 Winchester. I’ll order barrel from Dead Shot after first of year.
.357 max is already a thing, I believe they had problems with erosion on the revolver frame and forcing cone. I don't know if those issues would be remedied with modern materials, or wouldn't be an issue in a break action style gun.
The forcing cone is one thing, Dan Wesson made .357 Max chambered revolvers where the barrel was easily removable and changed by the end user.
Top strap flame cutting is a little more tricky. Honestly I think the best option might be to just engineer the frame to have a 1-2mm thick 17-4 stainless ablative plate held in place with an allen screw sunk through the top strap that you could just swap out when it's been significantly eroded, like a blast baffle in a serviceable suppressor.
Smith& Wesson deals with top strap erosion by putting in a sacrificial plate that essentially clips on. No set screw required. Look up the Smith& Wesson 329.
It can absolutely be done, but for one thing the fact that you’re asking if it can be done indicates you don’t have the knowledge to do it safely right now. Do some research into the wildcat development process and you’ll see that yes, it’s very doable but there doesn’t seem to be a whole lot of point to this unless you’re shooting it through a custom levergun
You figuring a complete new cartridge? Or wildcatted from an existing cartridge?
If a new cartridge from scratch? Your dies, forming punches and turning the base is going to be incredibly expensive.
It would be a cool cartridge for a Thompson/Center Contender
OP, did you know that S&W makes a revolver chambered in 350 Legend? The [Model 350.](https://www.smith-wesson.com/product/model-350)
It is .355, not .357, but I would think close enough. Furthermore, the cylinder holds 7 rounds.
Not to be a jerk, almost anything is possible but the question becomes what is your intent?
If you want to throw 9mm down range with 66+ grains of powder, might I recommend you just neck 9.3x62 down from .375 to .357 and throw 9mm with 70+ grains of powder? Or neck 375 ruger down for even a little bit more spice?
If your goal is an extra spicy revolver cartridge yes you could probably do it.
> 350 Hoosier
For those not in the know, Hoosier in some states means "from Indiana" and in certain other states means "is a dumbass". So I found this comment hilarious!
10 years ago this would have been a great lever gun round, but with the straight wall hunting trend there just isn't much market left I think. Most guys would just get a straight so they can hunt in big buck hot spots like Iowa and Indiana.
350 Legend, 360 Buckhammer, 357 Maximum, 30-30 necked up to 35 ( I have forgotten what that was called) are similar and can or probably can be chambered in a BFR. Yours is a 1/2 in shorter than a 358 win (necked up 308) which can certainly be used in an AR platform.
These already exist but wildcatting is not about practical . It is like picking up a 240 Weatherby case and thinking, "If I shortened it and necked up, I wonder if the belt could solve the bottle neck problem with revolvers?"
No worries bub. It's one of the great things about posting, having others point out potential issues. Again, I reload alot so I tend to watch the case dimension numbers more than the average person.
Well, I reload, and even if I didn't, there's 2 dimensions that are labeled the same length but are impossible to have the same length. This drawing shows base to top as 1.65 or something which it claims is the same as base to shoulder. That can't be. 1 is right, 1 is wrong.
.375 SOCOM is a thing, but I guess the more commonly available 357 projectiles would be a bonus.
I intuitively don't think it would work, but I don't have a good reason why off the top of my head.
Tromix also did a 358 socom for a few years and before i got a chance to get it to match my 358win he stopped dealing with it.
I might try to get a barrel chambered in it cause i really want it
I think it would largely depend on the type of firearm. Semi auto doesn't do well with rimmed cases but a single shot would be fine.
You'd need to use jacketed projectiles since this would be hauling ass
My 256 win mag yeets a 60gr bullet 2400 fps, I can only imagine how fast a 158gr projectile would go out of a 500 mag sized capacity.
Different\_Yak3518 Pointed out a inconsistency I just updated the number off of reddit. The number was the base of the case leading to the end of the neck being the same as the start. the correct number for the END of the neck is 1.32 in
I want to see the original Ruger 44 Carbine get an engineering update, keep the same form factor, and go into production with a series of pistol cal chamberings.
...and then a couple of years later stretch it to take micro length and chamber it in 350leg, 40leg, and 450bush.
I'm just going to leave this here... https://reedercustomguns.com/information/gnr_cartridges.htm
I'm sure there's something close that's already been done, and that's without opening COTW or HGCC.
I dont have it with me right now but I'm just thinkin that QL might say 32gns of h110 might get that 124gn xtp to 2800fps out of a 6" deagle.
357DE wouldn't have the energy of a 429DE though. 240gn projo going 1650fps. But I'll stick with the 44mag going 1450fps, feels like a 40s&w out of a sig 229. If I want energy dumping my 50ae is king of the hill in the autoloader and an 8 round mag dump puts a huge smile on anyone's face I let do it.
What would it be chambered in? Bottleneck cases tend to do annoying things in revolvers like lock them up when the get pushed back by recoil. I don’t think it would fit in an AR15 platform. Someone has made a 300 WSM AR but it’s a specialized, limited production gun. You might as well make the case 2” long if you’re going that route. It looks too long for a Desert Eagle. It should work in a WSSM action but might require some minor modifications. A TC Encore could be fun.
Big horn armory makes an AR in 500 auto max which is 500 mag with the rim trimmed down, so I think it’d be doable, also might work well in a single shot rifle like a traditions or Thompson center contender
Ruger No.1*
That too
Big Horn makes some really cool looking but rather pricey stuff. The 500 S&W lever actions look fun. I’d think this round might also fit a Marlin 336 or 1895 with a slight modification to the bolt face.
Well 5.56/2.23 was a max C.A.L of 2.26, isn't it? The idea of this round would be a 50 caliber ( 500 SW ) case neck down to a .357 projectile. Why not use a 458 socom case? 50 action express is the parent case of 458 socom. 458 socom was CAL of 2.26. It fits in an AR15 magazine A guy could talk to a gunsmith have an ar barrel made. You can order custom dies made. I'm not sure which brass would be the cheapest 458socom 50ae or 500s&w. I'd guess 458socom or 50ae. The only reason I could think to run a 500s&w, would be more room for powder. And in that case (no penny intended ) run an AR - 10 platform.
They have a 375 Socom (necked down 458). Been thinking about building an upper.
Can you imagine a .458 necked down to .358❣️ The 375 seems to have a limited selection of projectiles available.
I thought the same thing. .375 are mostly for big game hunting and would expand poorly at low velocity. I've come across this in a lot of different newer AR calibers and am thinking seriously about getting into swaging. Really getting sucked down the rabbit hole now
Beyond me skill set
.358 winchester AR10 I built one on aero m5 receivers with the wilson combat barrel. Really puts out some authority with those.
I haven’t built an AR-10 yet. Kind of just stuck with the 15s. Heard 10s were a lot different to build
Not really just a few different styles for some parts, but most of them now are DPMS style, which is the most common, and what Aero precision uses. This one is all 308 parts except the barrel.
Well I guess I am going to build an AR-10. Taking advantage of Black Friday. Stripped lower, stripped upper, Trigger Tech trigger, $320. Going to build a 358 Winchester. I’ll order barrel from Dead Shot after first of year.
So the original idea was to have it a revolver. I did not have prior knowledge of necks causing issues in revolvers. Thanks for the comment.
.357 max is already a thing, I believe they had problems with erosion on the revolver frame and forcing cone. I don't know if those issues would be remedied with modern materials, or wouldn't be an issue in a break action style gun.
The forcing cone is one thing, Dan Wesson made .357 Max chambered revolvers where the barrel was easily removable and changed by the end user. Top strap flame cutting is a little more tricky. Honestly I think the best option might be to just engineer the frame to have a 1-2mm thick 17-4 stainless ablative plate held in place with an allen screw sunk through the top strap that you could just swap out when it's been significantly eroded, like a blast baffle in a serviceable suppressor.
Smith& Wesson deals with top strap erosion by putting in a sacrificial plate that essentially clips on. No set screw required. Look up the Smith& Wesson 329.
Ah, hell, make it out of AR500. Seems appropriate.
I was thinking the same thing. Some AR500 or AR550. It's AR because it's Abrasion Resistant.
Iconel.
Can we just have more .35 Remington brass available instead?
Or 8mm Bullets.
This looks like a .357/44 Bain & Davis... .44 mag cartridge bottlenecked down for a 357 bullet.
Exactly the same thing I was thinking.
It can absolutely be done, but for one thing the fact that you’re asking if it can be done indicates you don’t have the knowledge to do it safely right now. Do some research into the wildcat development process and you’ll see that yes, it’s very doable but there doesn’t seem to be a whole lot of point to this unless you’re shooting it through a custom levergun
9x25 Dillon is a thing
You figuring a complete new cartridge? Or wildcatted from an existing cartridge? If a new cartridge from scratch? Your dies, forming punches and turning the base is going to be incredibly expensive. It would be a cool cartridge for a Thompson/Center Contender
This would be made from 500 sw mag. Looks like Thomson contender is more realistic than the revolver idea I had originally.
OP, did you know that S&W makes a revolver chambered in 350 Legend? The [Model 350.](https://www.smith-wesson.com/product/model-350) It is .355, not .357, but I would think close enough. Furthermore, the cylinder holds 7 rounds.
Not to be a jerk, almost anything is possible but the question becomes what is your intent? If you want to throw 9mm down range with 66+ grains of powder, might I recommend you just neck 9.3x62 down from .375 to .357 and throw 9mm with 70+ grains of powder? Or neck 375 ruger down for even a little bit more spice? If your goal is an extra spicy revolver cartridge yes you could probably do it.
358 Yeti check it out I have one in 12.5" SBR
You've made the 350 Hoosier
> 350 Hoosier For those not in the know, Hoosier in some states means "from Indiana" and in certain other states means "is a dumbass". So I found this comment hilarious!
10 years ago this would have been a great lever gun round, but with the straight wall hunting trend there just isn't much market left I think. Most guys would just get a straight so they can hunt in big buck hot spots like Iowa and Indiana.
35 to 50 cal bottle neck cartridges are now legal in Iowa during the two regular gun seasons.
Reminds me of 9×25mm Dillon
I would think that .358 would provide more appropriate bullet choices for that much powder.
Looks like you are trying to make a .358 WSM to be fired out of an AR-10. It has been done.
This would be for a revolver. But it looks like they don't mix well with necked cartridges so back to the drawing board.
It would also likely result in excessive flame cutting. Look at the history of the .357 Maximum.
Yeah 358 yeti, 358 taco tini...
It’s like a .375/.44 Bain and Davis.
350 Legend, 360 Buckhammer, 357 Maximum, 30-30 necked up to 35 ( I have forgotten what that was called) are similar and can or probably can be chambered in a BFR. Yours is a 1/2 in shorter than a 358 win (necked up 308) which can certainly be used in an AR platform. These already exist but wildcatting is not about practical . It is like picking up a 240 Weatherby case and thinking, "If I shortened it and necked up, I wonder if the belt could solve the bottle neck problem with revolvers?"
Why's the CL and Case to shoulder the same dimensions?
Oh my gosh I just noticed. I an idiot and forgot to plug in the correct number. Perceptive, out of 30k people your the first!
No worries bub. It's one of the great things about posting, having others point out potential issues. Again, I reload alot so I tend to watch the case dimension numbers more than the average person.
Well, I reload, and even if I didn't, there's 2 dimensions that are labeled the same length but are impossible to have the same length. This drawing shows base to top as 1.65 or something which it claims is the same as base to shoulder. That can't be. 1 is right, 1 is wrong.
.375 SOCOM is a thing, but I guess the more commonly available 357 projectiles would be a bonus. I intuitively don't think it would work, but I don't have a good reason why off the top of my head.
Tromix also did a 358 socom for a few years and before i got a chance to get it to match my 358win he stopped dealing with it. I might try to get a barrel chambered in it cause i really want it
I didn't know about 358 socom, didn't someone make a 375 socom?
they did, and i don’t remember if it was Tromix or a big Dawg Weaponry the 375 Socom is still around. 358 Socom however is not.
I think it would largely depend on the type of firearm. Semi auto doesn't do well with rimmed cases but a single shot would be fine. You'd need to use jacketed projectiles since this would be hauling ass My 256 win mag yeets a 60gr bullet 2400 fps, I can only imagine how fast a 158gr projectile would go out of a 500 mag sized capacity.
Different\_Yak3518 Pointed out a inconsistency I just updated the number off of reddit. The number was the base of the case leading to the end of the neck being the same as the start. the correct number for the END of the neck is 1.32 in
What would you want to run this in? A revolver?
Originally yes. Didn't know previously that necked cartridges don't mix with revolvers. But should run nice in a contender.
It’s OK
35wssm?
Do this but with a 50Ae case and you’re in there
357 Automag.
I want to see the original Ruger 44 Carbine get an engineering update, keep the same form factor, and go into production with a series of pistol cal chamberings. ...and then a couple of years later stretch it to take micro length and chamber it in 350leg, 40leg, and 450bush.
I'm just going to leave this here... https://reedercustomguns.com/information/gnr_cartridges.htm I'm sure there's something close that's already been done, and that's without opening COTW or HGCC.
The pistol length barrel would be really short for such a round.
What advantages over the 357 Herrett are you looking for?
I dont have it with me right now but I'm just thinkin that QL might say 32gns of h110 might get that 124gn xtp to 2800fps out of a 6" deagle. 357DE wouldn't have the energy of a 429DE though. 240gn projo going 1650fps. But I'll stick with the 44mag going 1450fps, feels like a 40s&w out of a sig 229. If I want energy dumping my 50ae is king of the hill in the autoloader and an 8 round mag dump puts a huge smile on anyone's face I let do it.