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68BlackRifle

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Reply with quote  #51 
Trimming first is best tip on converting brass . Im having much better success with less split brass doing it the way you layed out . Going 30 then trim expand to 33 cal then 35 cal the ring from neck is not near as bad doing this way .
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WC53

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Reply with quote  #52 
Does this round headspace on the casemouth?
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Moleman

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Reply with quote  #53 
Yes, so like the 30carbine, 450BM ect you have to keep an eye on the case length.
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WC53

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Reply with quote  #54 
Thanks, this looks like the simplest way forward for a "low powered" 357/8.
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Bajabusdoc

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Reply with quote  #55 
for cases if you cut first leave just 5 -10 thousands long and lube well, as shoulder removed the brass moves some also first fire may move some. "Moving some" is making them 3 thousandths shorter. Most splits are non annealed and under lubed. Different brass manufacturers may make up to 1 gr change in case capacity.  
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Moleman

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Reply with quote  #56 
Carbine length on 15" through 20", might work fine with a little shorter barrel. I'm likely going to just stick with 16" barrels on any more I make since you get the lions share of velocity out of them and they're handier. The gas port size is around .090" to .095". The youth season is in a little over two weeks. So I need to get the boy out shooting his soon.
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68BlackRifle

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Reply with quote  #57 
Have you tried the PMAG for 300 blackout mags , just looking at them and curious if they would function OK with 357ar 
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Moleman

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Reply with quote  #58 
Neat!  Didn't know they'd come out with a specific mag for the 300 blackout.  It would be interesting to see if they do work as is, since they address the issue of the bullet guides in their advertisement on them.  Haven't found a good pic of how they changed them though.  Since we use ours mostly for hunting I've stuck with 5,10,and 20rnd mags which aren't such a PITA to modify as the longer 30rnd mags. I'll see if the local gun store has one in stock.  Need to go get some powder for my savage MLII anyway. 
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Bajabusdoc

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Reply with quote  #59 
Mark;
given that 357AR max is 1.60 and Mini-mole 357 is 1.40, as they use the same reamer how many barrels would need to be made to make a run?

The only change is 0.20 in depth of reaming. They could use 358 YETI blanks pistol length gas tube 60-69 size port

Think about taking names and numbers?
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MDWS

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Reply with quote  #60 
Quote:
Originally Posted by Bajabusdoc
Mark; given that 357AR max is 1.60 and Mini-mole 357 is 1.40, as they use the same reamer how many barrels would need to be made to make a run? The only change is 0.20 in depth of reaming. They could use 358 YETI blanks pistol length gas tube 60-69 size port

10 of the same barrel and I can get them done.

Thanks!

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Moleman

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Reply with quote  #61 
I'll pass that along to others who have asked about a 357AR barrel on other sites.  Most were wanting a 16" with a carbine length gas port.  What reamer are you going to use?  I'd suggest one based off of this sketch   

It allows more shots between case trimming and the use of heavier cast bullets over the earlier print I had Manson Reamers use.

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jpeg 357AR (max-rimless).jpg (66.45 KB, 19 views)

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helix6

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Reply with quote  #62 
I like the 357AR but the Mini has ease of case forming (without anything beyond .357 Magnum dies) and (non-modified) magazine compatibility going for it. Those two things make it worthwhile to lose the small amount of capacity versus the 357AR.

I would be all over a 16" Gov't profile pistol gas barrel based on a .357 1:20" blank with a big bore extension - preferably nitride, but it's not like it's going to wear quick anyway. The advantage of the cartridge would be to use .357 bullets, so I think the slower twist and tighter bore would be a better choice versus .358 barrels. My only question would be which barrel threads to use - personally I would much prefer 1/2"-28 since I already have adapters for that size for both my Octane and Mystic-X.

I bet it would be pretty easy to find 10 people that would be interested in running this cartridge (particularly since it has some of the same advantages for certain hunting jurisdictions as the 450 BM).
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Bajabusdoc

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Reply with quote  #63 
Defer 357AR port size and location to Moleman. (the pistol works on Mini-mole @ 0.6 to 0.69)his has more gas
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Ol' BW

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Reply with quote  #64 
I've been following Moleman's 357AR projects for a while. I'd be interested in a barrel myself.

BW
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68BlackRifle

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Reply with quote  #65 
I have a reamer and have a barrel being made . but if Mark puts them out I would grab one .
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MDWS

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Reply with quote  #66 
Quote:
Originally Posted by 68BlackRifle
I have a reamer and have a barrel being made . but if Mark puts them out I would grab one .

I would be interested in renting your reamer if we can get 10 barrels lined up.  So far I think I count 2.

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wikster1983

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Reply with quote  #67 
I'm in for a barrel. Open to length and profile, but like the idea of a 18" SPR if possible.
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Ol' BW

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Reply with quote  #68 
Going back over the thread, here is who I counted that has expressed interest in a barrel:
Bajabusdoc
SteveOM
Helix6 - ?
kb31416
jnfarra
Ol' BW
68BlackRifle
wikster1983

I'm not real sure about Helix6 after the last post expressing case forming issues. Counting Helix6, would make 8 informal requests I assume, but everyone knows what happens when you assume...

BW
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Bajabusdoc

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Reply with quote  #69 
I am still in! Implied continued interest by asking how many to make a run....... 16 inch please target crown or threaded 5/8, stainless
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kb31416

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Reply with quote  #70 
I will confirm that I am in.  KB
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SteveOM

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Reply with quote  #71 
Mark,
How do you usually do these things?
Deposit up front?
Whole price up front?
Trying to figure the $$$$ situation out.
Thx!

PS, I'd prefer a 16" midweight, stainless or melonite (finish/material based on fact I hunt in rain sometimes and just a little easier to keep up if out for days).
18" would be ok too, I could cut and re crown if I ever felt the need.
If threaded, 5/8-24 minimum, don't want thin wall around threads.
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SteveOM

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Reply with quote  #72 
Also, if there are more folks wanting Mini-Mole I'd be game to go that route instead.
They both appeal to me, both have pros/cons. More power on the MAX version, and full mag length to help keep them situated better in the magazine. The Mini is definitely easier to form and use stock magazines. I will follow the masses this time, mainly because if I don't I won't ever get one.
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RangerJoe

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Reply with quote  #73 
Argghhh - SO MANY great wildcats, so little time! 
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helix6

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Reply with quote  #74 
I'm much more interested in the Mini. The 357AR has some difficulties that give me pause. If the price was really right on the barrel, I may be willing to give it a try.
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wikster1983

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Reply with quote  #75 
I am interseted more so in the full size 357AR.
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A good marksman can make shots past 500 yards; a good hunter doesn't need to
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