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SteveOM

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Reply with quote  #126 
KB3146 the 357AR headspaces on the cartridge case mouth, like auto pistols and the 30 Carbine round.
Most autoloaders and their mags can't deal well with rims larger than the case body (which is required if you want to headspace off of the rim).
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Duckhunter39480

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Reply with quote  #127 
Mine are a bit "wasp wasted" as Moleman called them but I think I have reformed 223 into 357AR. I started with FC 223 head stamped brass. I trimmed these to about 1.627 and ran these over a 243 expander ball, then a 260 expander, then a 270 expander. At this point I had lost no brass to deformation or neck splits. Next I annealed the brass and expanded it over a 308 expander, then a 338 and finally a 358 expander. Finally I trimmed it to 1.605. At this point I discovered that some of this brass was almost too short to get the case mouth squared up properly. The total loss of cases, even with the learning curve, was less than 10%.

I am confident that a medium 357 Max load will completely form these cases. I've got brass, bullets, primers, and powder, all I need is is a barrel. I'm gonna love this AR thing.
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Moleman

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Reply with quote  #128 
What would be super sweet is a specifically made SS magazine that would feed 357Max cases as is.  You can put a partial lip on the chamber to headspace off of even though it's a PITA.  Best I've been able to do is 2 357Max rnds in a modified Pmag with some degree of reliability, 3rnds seems to be the tipping point where reliability drops off.  So, if you know a magazine guy....
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Bajabusdoc

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Reply with quote  #129 
Duckhunter look at July 23 post dilate then trim. You are losing 25 thou. Seems alot try anealing before first dilation
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Duckhunter39480

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Reply with quote  #130 
Expand then trim is my next effort. Baja, You are correct and I will do this next time. I learn something every time I work through a new wildcat. I've never worked with the 223 class of cartridges as I always thought they were too small. The learning never ends...
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Bsharp

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Reply with quote  #131 
PT&G has a 35/223 reamer for $66 if anyone  can use it.

http://pacifictoolandgauge.com/chamber-reamers/13875-17-mach-iv-reamer.html

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WC53

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Reply with quote  #132 
I would be interested in the 16" ranger profile option
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JBFA

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Reply with quote  #133 
Quote:
Originally Posted by Bsharp
PT&G has a 35/223 reamer for $66 if anyone  can use it.
Somebody buy it and send it to me, I'll make some😁

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BIGGDAWG

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Reply with quote  #134 
Quote:
Originally Posted by Bsharp
PT&G has a 35/223 reamer for $66 if anyone  can use it.

http://pacifictoolandgauge.com/chamber-reamers/13875-17-mach-iv-reamer.html

do you know the specs on that one?

for that price may give them a call

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Bsharp

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Reply with quote  #135 
Quote:
Originally Posted by BIGGDAWG
do you know the specs on that one?

for that price may give them a call

No, and good luck with calling and getting a description....but you need to try!

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BIGGDAWG

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Reply with quote  #136 
Quote:
Originally Posted by Bsharp
No, and good luck with calling and getting a description....but you need to try!

yes i am not impressed with ptg, i don't buy their reamers i use jgs just seems they don't have anyone there that can answer questions truthfully.

don't have time to chase them down on the phone this week maybe next week.

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Duckhunter39480

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Reply with quote  #137 
I just got a note about the possibility of a run of 223 cylinder brass in a couple of months. The note indicated that the cost would be about $90 for 200 pieces. Brass would be annealed and without a headstamp. Also these would be sold in reusable ammmo boxes. Sounds a little too good to be true but it it is I'm in for more of these AR wildcats

DH
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wikster1983

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Reply with quote  #138 
Quote:
Originally Posted by Duckhunter39480
I just got a note about the possibility of a run of 223 cylinder brass in a couple of months. The note indicated that the cost would be about $90 for 200 pieces. Brass would be annealed and without a headstamp. Also these would be sold in reusable ammmo boxes. Sounds a little too good to be true but it it is I'm in for more of these AR wildcats

DH

Does sound too good to be true! Hell yeah, I'd be in for some brass like that too. Way easy then!

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SteveOM

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Reply with quote  #139 
Quote:
Originally Posted by Duckhunter39480
I just got a note about the possibility of a run of 223 cylinder brass in a couple of months. The note indicated that the cost would be about $90 for 200 pieces. Brass would be annealed and without a headstamp. Also these would be sold in reusable ammmo boxes. Sounds a little too good to be true but it it is I'm in for more of these AR wildcats

DH

Duckhunter, can you share which vendor/mfg? Is this from Starline? Those stinkers never responded to my email questions on this topic....
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Moleman

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Reply with quote  #140 
That is good news!  It would be super sweet if they'd headstamp them 357AR, but 223 basic gets you the majority of the way there.  You could likely run them through a forster trimmer with a reamer pilot and turn them to 357AR brass in one step.  In the past 6 years I've contacted every brass maker I can think of and only ever got a reply from Hornady... Who of course said no. 
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kb31416

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Reply with quote  #141 
I would definitely get 400 or 600 pieces
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battle rattle

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Reply with quote  #142 
if it happens I'm in for a healthy pile too, might be a good idea to let them know what kind of demand they can expect

Starline hasn't replied to my message ... yet ... [sleep]
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Ol' BW

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Reply with quote  #143 
I'm sure I'd be in for 200 pcs.

BW
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RangerJoe

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Reply with quote  #144 
Would certainly ease making .357AR cases!  I'd be in!
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Bajabusdoc

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Reply with quote  #145 
Brass KB31416, Wikster1983 , Battle Rattle, Ol'BW, Ranger Joe, Bajabusdoc so at least 1200 rounds ( to maybe 1600 if KB wants to start with that many) also SteveOM?
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SteveOM

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Reply with quote  #146 
Add me to "interested " list.
I'm more than interested but it will be a matter of funds.
Same for the brass.
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WC53

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Reply with quote  #147 
You can count my interest as a whole [smile]

2-400 brass also

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wikster1983

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Reply with quote  #148 
yes 200-400 depending on funds at time of brass order
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Bajabusdoc

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Reply with quote  #149 
Big john for MM and 357AR not using Norma or Lapua. Once dilated and trimming done after first fire just use the powder through die it dilates to place 357 or 358 bullet. Resize or taper crimp die to COAL and fire. I use an old 38 special die and have not had a base so dilated that i need to resize to rim. If needed a 223 die could do that. Don't need to spend $$$ for 357maximum die
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Moleman

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Reply with quote  #150 
I'm using a early 1990's Lee 38/357 die set along with a lyman taper crimp die on the 357AR.   I've run across some odd foreign surplus brass that would crack or split after a couple loading and a batch of federals that had thicker case walls than any other surplus brass I've run across.  I try to keep to Rem, Win, and LC brass but I've got some others in my plinking batch. Early on with the test barrel I sectioned a case that had been fired 12 times as a 357AR and at least once as a 223.  Inside looked good.  Cant seem to find the pic of it, perhaps I still have that sectioned case somewhere. 
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