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Author Topic: 357 herrett  (Read 1290 times)

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Offline w4dsb

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357 herrett
« on: January 29, 2006, 02:14:41 PM »
looking for advice on forming 357 brass from 30-30
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Offline Grumulkin

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357 Herrett
« Reply #1 on: January 29, 2006, 03:07:58 PM »
If you want to form 357 Herrett Brass from 30/30 brass you'll need 357 Herret dies and a trim die.  It's not particularly hard but is time consuming.  I would recommend buying already formed brass (Midway USA has it).
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Offline rickyp

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357 herrett
« Reply #2 on: January 30, 2006, 02:41:49 AM »
This was sent to me from another member and it works for me
" You do not need to spend a large amount of money for all the trim dies. I make mine using the standard Hornady loading dies. Trim a new .30-30 to 1.765", run through the sizing die. Make sure you set the die to where the action will just shut and function. This will eliminate case stretch. I use 15.5 of 2400 and 158 grain cast bullets for fireform loads. Once the case is fireformed, trim it to 1.75" and you should be good to go"

Shoot me an email and I will try and help anyway I can
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Offline Racepres

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357 herrett
« Reply #3 on: January 30, 2006, 02:14:27 PM »
I concurr that the brass should be run thru the die first. I also use Hornady die for this. Then I cheat, I use a small tubing cutter, to get me close, then the lee cutter and lock stud w/ a power drill, But I don't go all the way... I leave em a bit long. Then I like to fire-form w/bullseye,cornmeal, and a wax plug [course my fish in the pond need a treat sometimes too]. Final trim to length is after fireform. After which I have yet to full length resize.   Good luck , and as rickyp says, if ya need more depth, e-mail.   MV
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Offline scgunsmith

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357 herrett
« Reply #4 on: January 30, 2006, 03:51:09 PM »
I think I still have about 200 formed 357 herret brass
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Offline jschance

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Forming .357 Herett Brass
« Reply #5 on: February 02, 2006, 01:53:51 AM »
The one trick I learned when I first set out making brass was to anneal the brass prior to the forming.

I cut the 30-30 brass off first using a homemade trim die and a fine bladed hacksaw, deburr the cut, then anneal the neck.  Once the brass are annealed, I lube them up and form the brass to .357 Herret, then trim to length.  The next step is the load and fireforming, then trim to final length and shoot away.
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Offline w4dsb

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357 herrett
« Reply #6 on: February 02, 2006, 11:39:03 AM »
i got the dies today in the mail, hornady new dimension dies from lock,stock and barrel in Nebraska, nice folks to deal with
so we'll see how forming goes over the weekend
thanks,
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Offline sparkyc2

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357 Herrett sizing
« Reply #7 on: February 02, 2006, 01:08:13 PM »
Use Imperial Sizing Die Wax to make the job easier and result in more successful cases making the grade.  I have formed "a bunch" of 30 and 357 Herret since the '70's. Worked best for me.  Good luck and great shooting.  http://www.midwayusa.com/eproductpage.exe/showproduct?saleitemid=519525
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Offline hutch

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357 herrett
« Reply #8 on: February 13, 2006, 09:35:51 AM »
If your 30 or 357 Herrett barrel has a flat base lug make sure to inside neck ream your brass also.

The later step base barrels have a wider neck so it is not needed. Although I would check to make sure so you do not hurt the Contender and yourself with high pressure.

Hutch
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Offline Racepres

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357 herrett
« Reply #9 on: February 13, 2006, 12:37:18 PM »
Good job hutch... i forgot that bit. Course I always slip a bullet in the fire formed case mouth to check for proper bullet "release"...  course I also forgot to mention the imperial wax... good for you too sparkyc2 that is the best stuff... I personally don't anneal for this ctg but it is probably a good idea [heck I have some RP nickle cases reformed to 357 herrett and have not lost one in 4 loadings] ... How is the forming going w4 ??   MV
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Offline Steve P

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357 herrett
« Reply #10 on: February 13, 2006, 03:40:09 PM »
Harbor Freight Tools sells a mini cut-off saw.  It is slick for cutting off the neck.  Lots faster than the tubing cutter and very reasonably priced.  

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=42307

Steve  :D
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Offline Lynn Alan Kietzman

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357 herrett
« Reply #11 on: February 13, 2006, 05:35:58 PM »
For years I used 30/30 brass for forming both 30 and 357 Herrett brass. I could get 4 maybe 5 loads before the same lot of cases started to show seperation. On a member suggestion, I started using 375 Win brass. For the 357 Herrett they gave me extended brass life.
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Shoot safely.....shoot tomorrow.

Offline w4dsb

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357 herrett
« Reply #12 on: February 14, 2006, 01:23:35 PM »
heres the progress so far:

today i trimmed 24 to 1.765 as mentioned above then formed them and they are perfect, all headspace on the shoulder and i have started fireforming them
i'm using 4227 and 158 gr. wad cutters and have fired about 12 of them
they seem to be working out great!
They're not as much trouble as i expected just slow to make
thanks for all the help on this
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