Author Topic: Variation on the 32-20 (the 30C-Rimmed)  (Read 602 times)

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Offline gcrank1

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Variation on the 32-20 (the 30C-Rimmed)
« on: January 29, 2013, 05:48:34 AM »
Just thinkin'
One of the things about building up a 32-20 is getting a barrel with the right size bore/groove dimensions. I have had 32-20s and currently just download 30-30 to 32-20 ballistics, but the notion has been a-workin' in me......
I took a 32-20 case and ran it through a 30 Carbine size die, now it isnt quite the slightly bottleneck of the original case and will hold a typical 30 cal. projectile, and HAS a rim.
There are a number of 30 cal. barrels and blanks suitable to stub up on a Handi which could be chambered 30Carb. and a rimcut made. Some brass may require a small bit of trimming to length.
Lots of bullets to choose from, too.
IF you end up not liking it (oh why could that be?) you can rechamber to any number of 30 cal. cartridges.
"Halt while I adjust my accoutrements!"
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Offline wganz

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Re: Variation on the 32-20 (the 30C-Rimmed)
« Reply #1 on: January 29, 2013, 05:16:07 PM »
IMHO, the .30-.357 Mag wildcat would be easier to do since the parent case already has a rim.

Offline craigster

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Re: Variation on the 32-20 (the 30C-Rimmed)
« Reply #2 on: January 29, 2013, 05:21:45 PM »
I think you'd wind up with something similar to the old .310 Cadet. I have a Martini so chambered and it is one neat rifle. I use fire formed 32-20 brass shortened a bit to closely match the original brass. With the correct bullet it is an accurate and fun little shooter. Find a reamer and go for it!


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Offline twoshooter

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Re: Variation on the 32-20 (the 30C-Rimmed)
« Reply #3 on: January 29, 2013, 05:22:56 PM »
The contenders chambered for 32/20 used a 308 bore and came with both a 308 and 311 expander buttons in the RCBS reloading dies. The 300 AAC/Whisper is pretty close , but unfortunately, no rim. 357 cases can be made to work, but the neck is very short and run out is considerable.  The concept is very sound though, as the case size is very efficient.

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Offline gcrank1

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Re: Variation on the 32-20 (the 30C-Rimmed)
« Reply #4 on: January 29, 2013, 05:53:00 PM »
Wganz, the 32-20 'parent' I suggest already has a rim too, and does not require the somewhat troublesome neck reforming, so I dont think the 30-357 would be easier to do overall; plus the 30C dieset is likely found reasonably priced, if not cheap on a gunshow table. I havent been all that fond of the bottleneck on the 32-20 and havent I heard that carbide dies are available for the 30C? Carbide does make the resizing go ever so much quicker and easier (and a bunch of us just like mostly straight cases anyway).
The 32-20, .310 Cadet, and higher performance 30C have all proven themselves as viable cartridges from cast bullet through jacketed so the 'size' is good, and with the faster twist of the typical 30cal. barrel should be good for longer/heavier bullets of both persuasions for sub-sonic, schuetzen, small game, plinkin', etc. I know at least a couple of guys have campaigned the 32-20 quick twist for schuetzen matches. No reason it cant be done with a plain base 30cal. cast bullet.
Now if the case I suggest doesnt have enough powder capacity for one, that 30-357 could very well be the next step up, and I have liked that cartridge since hearing about it some years back.
This notion of mine is one of those 'what if' concepts.
"Halt while I adjust my accoutrements!"
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We are only temporary caretakers of the past heading toward an uncertain future
22Mag UV / 22LR  Sportster
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Offline nanuk-O-dah-Nort

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Re: Variation on the 32-20 (the 30C-Rimmed)
« Reply #5 on: January 29, 2013, 10:52:52 PM »
when I look at the specs, it would appear the 32/20 and the 30C are a match, with the 32/20 being a few hairs longer. 0.025" by my calc.

so, why not just put a recess on a 30C chambered barrel, stub it in, and go shooting?

sound like it makes a lot of sense to me!

and with the extra length, one can trim them to be a perfect fit for cast or paper patching.

You could get the same efficiency by fill/drill a 30-30 with Lino, but what is the fun in that?



Offline bikerbeans

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Re: Variation on the 32-20 (the 30C-Rimmed)
« Reply #6 on: January 30, 2013, 12:55:52 AM »
gcrank1,
If a fellow had a 30-06 takeoff barrel (maybe from a Ruger #1 ;) ) you could cut off the existing chamber and turn this barrel down to fit inside a 12ga Pardner barrel.  Make a nice little heavy barrel liner gun.  Ream the installed liner, cut and crown to length, make an extractor cut and replace the 12ga ejector with a 22H ejector and you are good to go.  Well almost, probably wouldn't hurt to have a scope rail or a set of open sights.  I await pics of your finished project. 8)
 
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Offline geezerbiker

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Re: Variation on the 32-20 (the 30C-Rimmed)
« Reply #7 on: January 30, 2013, 01:36:05 AM »
Why not just go with a .30 Herret rather than reinvent the wheel?

Tony

Offline casper_zip

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Re: Variation on the 32-20 (the 30C-Rimmed)
« Reply #8 on: January 30, 2013, 02:28:11 AM »
Try you one of the fablous 30 Reece. This thing is fantastic for it's size. Uses common ole 38 special cases, run it into a Reece die, and load it with any 30 cal. bullet you have. It is cheap to shoot, extremely accurate, will kill anything the 300 Whisper will. Ask me how I know. I have a MGM barrel for mine.
 
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Offline gcrank1

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Re: Variation on the 32-20 (the 30C-Rimmed)
« Reply #9 on: January 30, 2013, 05:06:07 AM »
Guys, I know there are a bunch of other already developed wildcats that will do similar, but diesets for wildcats and proprietary cartridges arent often found 'reasonably priced' and brass forming on some is no where near as easy as just running a 32-20 case into a 30C die. Some of those reamers might be more expensive too. If you have a long time gunshop near you they might even have a 30C reamer on hand.
Maximize the KISS principle as you consider my notion. (now if H&R would just chamber up a Handi in 30C with a proper throat for cast bullets we'd have it made; rim cut and done)

BB, I hear there's a guy out in Ohio that does a bunch of oddball stuff like this, bet he could whip one up way quicker than I could nowdays  ;) .

BTW, if I was going to make something based on the 38 class of brass I think Id go 30Badger (avail. Dave Manson Reamers) but on 357Max cases.
"Halt while I adjust my accoutrements!"
      ><   ->
We are only temporary caretakers of the past heading toward an uncertain future
22Mag UV / 22LR  Sportster
357Mag Schuetzen Special
45-70  SS Ultra Hunter with UV cin.lam. wood
12ga. 'Ol' Ugly OverKill', Buck barrel c/w  SpeedStock  and swap 28" x Full bird barrel, 1974