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Author Topic: Wildcat Cartridges  (Read 810 times)

Offline GWP

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Wildcat Cartridges
« on: March 07, 2021, 09:44:09 AM »
In the past I was 'fairly' into wildcats. Probably the nastiest one I had was a 14” handgun .358 JDJ barrel I had for my Thompson Contender. 444 Marlin case necked down to .358. Pushed a 180gn bullet at 2500 fps and was BRUTAL to shoot.
The last one I was personally going to make was necking down a 25 ACP to 22 using cut down 22 Hornet dies to make a cute little bottleneck for use in a Thompson Contender barrel. That would have been an easy one because I could use a 22 Hornet reamer to make the chamber as well. Lost interest in the project and then they came out with the 22 TCM.
There are so many new cartridges on the market, and you can always load up or down to get what you want, but still, wildcat's are fun to play with.
Anyone else do them?
« Last Edit: March 07, 2021, 10:19:15 AM by GWP »

Offline kselkhunter

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Re: Wildcat Cartridges
« Reply #1 on: March 07, 2021, 09:53:48 AM »
@yorketransport is one of the resident wildcat experts on here.  He's posted about lots of fun wildcats over the years.

Your .358 JDJ is very similar to 356Win, and I imagine the recoil in a Contender was "stout".  In fact, I have a 356Win Redding form & trim die specific for forming 444 Marlin cases into 356 Win.   Granted these days 356 Win is a glorified wildcat as no more rifles are made for it....but Winchester at least does one run for new brass manufacturing every year.   So it's not technically a "wildcat" yet. 

One of these years I'll find a used 30-30 and have JES turn it into a 35/30-30 for a cast bullet shooter for this pile of 250gr Beartooth bullets that I have (356Win neck isn't quite long enough for the gas check to not be sitting down in the powder below the neck, whereas 35/30-30 neck is).  Always wanted to try the 405 JES as well.   


« Last Edit: March 07, 2021, 10:01:05 AM by kselkhunter »

Offline GWP

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Re: Wildcat Cartridges
« Reply #2 on: March 07, 2021, 10:12:45 AM »
Ahhhh yes, the old ‘I will spend hundreds (or more) to make this oddball to use up $50 worth of bullets’ syndrome! I know it well!  :chuckle: :chuckle:

Offline GWP

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Re: Wildcat Cartridges
« Reply #3 on: March 07, 2021, 10:17:48 AM »
@yorketransport is one of the resident wildcat experts on here.  He's posted about lots of fun wildcats over the years.

Your .358 JDJ is very similar to 356Win, and I imagine the recoil in a Contender was "stout".  In fact, I have a 356Win Redding form & trim die specific for forming 444 Marlin cases into 356 Win.   Granted these days 356 Win is a glorified wildcat as no more rifles are made for it....but Winchester at least does one run for new brass manufacturing every year.   So it's not technically a "wildcat" yet. 

One of these years I'll find a used 30-30 and have JES turn it into a 35/30-30 for a cast bullet shooter for this pile of 250gr Beartooth bullets that I have (356Win neck isn't quite long enough for the gas check to not be sitting down in the powder below the neck, whereas 35/30-30 neck is).  Always wanted to try the 405 JES as well.

I had a .357 Maximum (barrel I used for the .358 JDJ) that sounds like what you would end up with. Not as much fun as ‘making something’ though.

Offline kselkhunter

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Re: Wildcat Cartridges
« Reply #4 on: March 07, 2021, 11:06:04 AM »
Ahhhh yes, the old ‘I will spend hundreds (or more) to make this oddball to use up $50 worth of bullets’ syndrome! I know it well!  :chuckle: :chuckle:

Yep.  The cast bullets shoot fine in my 35 Whelen, and I don't "need" a 35/30-30......but.......    yeah it's not hard to come up with excuses for wanting a new rifle......


The North Fork 270gr 35 cal bullet was my excuse for eventually planning on a 358 STA or related wildcat build....then North Fork went out of business....then their assets/IP got bought and they're now made in Sweden and distributed by Reloaders International out of Pendleton, OR... so you can get North Fork bullets again (albeit limited stock right now).....methinks a higher velocity 35 cal is now again in my future plans....  :-)   My 35 Whelen can't spin those 270s fast enough for proper use.   Yeah....that's a good reason why I need a 358 STA!   :chuckle:

Offline fly-by

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Re: Wildcat Cartridges
« Reply #5 on: March 07, 2021, 08:45:54 PM »
My current wildcat project is a .35 Ackley magnum found on the orphan rack at a local shop. It's basically the wildcat precursor to the .358 Norma.  Did a chamber cast to verify what it was and have fireformed some brass from .300 WM.   
I think a better, more modern version would be a .375 Ruger necked down to .358.

Offline JimmyHoffa

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Re: Wildcat Cartridges
« Reply #6 on: March 07, 2021, 09:03:03 PM »
@yorketransport is one of the resident wildcat experts on here.  He's posted about lots of fun wildcats over the years.

Your .358 JDJ is very similar to 356Win, and I imagine the recoil in a Contender was "stout".  In fact, I have a 356Win Redding form & trim die specific for forming 444 Marlin cases into 356 Win.   Granted these days 356 Win is a glorified wildcat as no more rifles are made for it....but Winchester at least does one run for new brass manufacturing every year.   So it's not technically a "wildcat" yet. 

One of these years I'll find a used 30-30 and have JES turn it into a 35/30-30 for a cast bullet shooter for this pile of 250gr Beartooth bullets that I have (356Win neck isn't quite long enough for the gas check to not be sitting down in the powder below the neck, whereas 35/30-30 neck is).  Always wanted to try the 405 JES as well.
I'm interested in the .35-30/30.  I have a barrel for a .32 WS, that is ringed a little bit.  I was thinking the .35 option would be a little bit more my liking than going to a 38-55.  Tough part is finding the dies.  Only pre-owned dies for .35-30/30 I've seen were around $200.  The other option was to have them made.  Probably still be less than trying to get a new 26" octagonal barrel in 32.

Offline kselkhunter

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Re: Wildcat Cartridges
« Reply #7 on: March 07, 2021, 09:13:21 PM »
JES will turn it into a 35/30-30 for $250 for the 3 groove. http://www.35caliber.com/2.html   He'll also take it to 356Win and other cartridges.  He won't go up to 405 JES or 444 Marlin if you have the barrel bands model, just the forend models (recoil reasons).

He re-bored a 30-30 Marlin for me up to 356 Win and a 30-06 up to 35 Whelen.  Both shoot very well as the re-bores.   

CH4D sells the 35/30-30 dies for $109 for 2 die set.  They also have a 40 degree Improved version, and JES will do both.
https://www.ch4d.com/products/dies/caliber-list?filter-col=caliber&filter=35%2F30-30


Offline MountainWalk

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Re: Wildcat Cartridges
« Reply #8 on: March 07, 2021, 09:25:14 PM »

Online kselkhunter
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Re: Wildcat Cartridges
« Reply #7 on: Today at 09:13:21 PM »
Quote
JES will turn it into a 35/30-30 for $250 for the 3 groove. http://www.35caliber.com/2.html   He'll also take it to 356Win and other cartridges.  He won't go up to 405 JES or 444 Marlin if you have the barrel bands model, just the forend models (recoil reasons).

He re-bored a 30-30 Marlin for me up to 356 Win and a 30-06 up to 35 Whelen.  Both shoot very well as the re-bores.   

CH4D sells the 35/30-30 dies for $109 for 2 die set.  They also have a 40 degree Improved version




    That's some prime info. Thanks.
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Offline JimmyHoffa

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Re: Wildcat Cartridges
« Reply #9 on: March 07, 2021, 09:53:42 PM »
JES will turn it into a 35/30-30 for $250 for the 3 groove. http://www.35caliber.com/2.html   He'll also take it to 356Win and other cartridges.  He won't go up to 405 JES or 444 Marlin if you have the barrel bands model, just the forend models (recoil reasons).

He re-bored a 30-30 Marlin for me up to 356 Win and a 30-06 up to 35 Whelen.  Both shoot very well as the re-bores.   

CH4D sells the 35/30-30 dies for $109 for 2 die set.  They also have a 40 degree Improved version, and JES will do both.
https://www.ch4d.com/products/dies/caliber-list?filter-col=caliber&filter=35%2F30-30
Yeah, JES would have to check it to see that the barrel could go to .35, it would be pushing it.  That specific barrel would probably have to go .38.  I've read nothing but good things about his services and turn around times, so he'd be top of the list.

Offline kselkhunter

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Re: Wildcat Cartridges
« Reply #10 on: March 07, 2021, 10:05:38 PM »
You'd have to have some pretty deep rust or cuts or something to not be able to get to 35 and have to skip up to 38.  But Jesse is a good guy.  I've been to his shop multiple times and talked with him and toured his machine shop, as I dropped the rifles off and pick them up (I visit customers not far north of his place) in person.  My advice is to select a few bullet options for each caliber (35 cal, 38-55, 375win, 405, 444) and let him advise what he thinks would be the best fit for that particular rifle.  And he'll set the twist rate to optimize for your preferred bullets.


Offline JimmyHoffa

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Re: Wildcat Cartridges
« Reply #11 on: March 07, 2021, 10:12:15 PM »
It's noticeable if you look through the barrel, only way to get any kind of measurement is across the flats on the barrel.  The ring/bulge is about halfway down.  I got it as a project barrel anyways.

Offline BigGoonTuna

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Re: Wildcat Cartridges
« Reply #12 on: March 08, 2021, 07:55:50 AM »
I had JES turn my badly pitted m99 in .300 savage into a .358 win last year. I think it was back in my hands in 10 days.

Would love to find a beater marlin 336sc to have turned into a 35-30/30 or .356 win.
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Offline hunter399

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Re: Wildcat Cartridges
« Reply #13 on: March 08, 2021, 08:29:41 AM »
I only have one,and I don't know if I would call it a wildcat .
25-223 or 25/45
Black hole. Barrel in an ar platform.
You can buy factory ammo still ,But it will continue to fade.
And become a true wildcat.
I've used it on deer ,it's alright if you do your part.But nothing great.
I just cronograph some loads about a month ago.
It was coming in at 2860 with 87 grain bullet.
Two birds in the Bush is always better than one in the hand-that way you can always go to the Bush and hunt another day .conservation=Better hunting.
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