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whats the chamber depth of a 357 max

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Offline jacks44mag

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357 mag or 357 max
« on: May 29, 2010, 03:09:58 PM »
I just got a new 357 mag NEF handi and it seems the chamber is cut deep enough for a 357 max round I dont have a 357 max round to see if it would fit I tryed to measure it by seating a bullet in a empty brass with a 158 g bullet as far out of the brass with out falling out the bullet does not touch the lands.What would be the best way to measure it to see if a 357 max would fit
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Offline Airsporter

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Re: 357 mag or 357 max
« Reply #1 on: May 29, 2010, 03:30:09 PM »
Seems the H&R .357 mag has a long throat.  I checked .357 max brass before I lengthened the chamber.  Case went in all but about 1/4 inch.  Probably would have chambered .360 brass.  Didn't check with a loaded round though.  Max Reamer did take a fair bit of metal out.
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Offline bikerbeans

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Re: 357 mag or 357 max
« Reply #2 on: May 29, 2010, 03:33:17 PM »
Case lengths, untrimmed.

357 Mag  1.290"

357 Max  1.605"


what am I voting on?
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Offline Dinny

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Re: 357 mag or 357 max
« Reply #3 on: May 29, 2010, 05:39:21 PM »
Things aren't always what they seem. My 357 Mag barrel has a longer than normal chamber and 360 DW brass fits in there empty, but not when it has a bullet loaded. There's something about how the throat (more like forcing cone) is cut that allows the brass to fit without a bullet. Bullet seating depth doesn't matter. In the end, I had to trim my DW brass 0.010" to make it work in the MAG chamber. There's a ton of info out there on the GBO archives that discusses the chamber length issue. Most fix all their problems by reaming the chambers to the MAX. It makes great use of the longer chamber and improves the throat issues, making the 38cal trio of cartridges shoot better.

Thanks, Dinny
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Offline Spanky

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Re: 357 mag or 357 max
« Reply #4 on: May 29, 2010, 07:31:59 PM »
The chamber is cut just deep enough to tease you... it's saying "max me... max me" :D



Spanky
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Offline Airsporter

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Re: 357 mag or 357 max
« Reply #5 on: May 30, 2010, 03:33:08 AM »
Quote from: Spanky on May 29, 2010, 07:31:59 PM
The chamber is cut just deep enough to tease you... it's saying "max me... max me" :D
Spanky

True dat ;D
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Offline dave29

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Re: 357 mag or 357 max
« Reply #6 on: May 30, 2010, 10:39:28 AM »
Quote from: Spanky on May 29, 2010, 07:31:59 PM
The chamber is cut just deep enough to tease you... it's saying "max me... max me" :D



Spanky

Yep, mine had a fair amount of chamber removed with the reamer.
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Offline yukondog

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Re: 357 mag or 357 max
« Reply #7 on: May 30, 2010, 11:08:30 AM »
Befor maxing mine it would chamber a loaded 360 just fine, and it does scream max. me.
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Offline bikerbeans

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Re: 357 mag or 357 max
« Reply #8 on: May 30, 2010, 12:31:40 PM »
Max, max, max, all I ever here around here is MAX!! ;D

Now you guys got me thinking I need to measure the cylinder length of my model 28-2 S&W.  Just think of the possiblities if the cylinder is long enough, I can screw up six rechambers on one reamer rental.  :P

BB
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Offline petemi

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Re: 357 mag or 357 max
« Reply #9 on: May 30, 2010, 02:53:57 PM »
Both my chambers are already reamed, so I can't answer the question.

Tom, I'm not familiar with the 28-2  I'd seat brass in the cylinder and measure what's left.  I think a bullet would protrude and stop the cylinder from turning.  Also, even if it worked, I'd only load light loads in it.........me thinks ???  

MAXI MAX MAX MAXI MAX MAXI MAXI ;D ;D :o :o ;D ;D

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Offline Datil

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Re: 357 mag or 357 max
« Reply #10 on: May 30, 2010, 04:04:40 PM »

 The model 28 cyl is not long enough to ream for Maximum, I have done
 measured Mine I don't think it long enough for the 360.  Datil
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Offline bikerbeans

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Re: 357 mag or 357 max
« Reply #11 on: May 30, 2010, 04:46:37 PM »
Just as well as I have a lifetime supply of donated Bullseye and a max. load doesn't fill up 1/2 a 357 mag case.  The 28-2 has a very stout cylinder with recesses for the rim so I think it would be fine with increased pressure.  The cylinder not being able to rotate would be a problem. ::) Probably should leave it alone, I only had one point deducted for accuracy in the last club shoot, out of 42 shots.

BB
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RIP Tom: Tom Nolan, ( bikerbeans) passed away this afternoon (02-04-2021).

Why be difficult, when with a little extra effort you can be impossible?

Wife's Handis;  300 BLKOUT

MINE:  270W, 308x444, 44 Bodeen, 410 shorty rifled slug gun, 445 SuperMag Shikari, 45 ACP shorty,  45-70 Shikari, 45 Cal Smokeless MZ, 50cal 24" SS Sidekick, 50 cal 24" Huntsman, 50 cal 26" Huntsman, 50 cal 26" Sidekick, 50-70 Govt Shikari, Tracker II 20 ga shorty, 20 ga VR Pardner, 20ga USH, 12ga VR NWTF, 12ga Tracker II shorty WITHOUT scope, 12ga USH, 10 ga  Pardner Smoothbore slug gun & 24ga Profino Custom rifled slug gun.

Offline gcrank1

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Re: 357 mag or 357 max
« Reply #12 on: May 31, 2010, 11:50:41 AM »
Wouldnt you think the factory could/would/maybe now(?) be more aware of what to use for 'proper' chambers? But, these rifles, just like B&S lawnmower engines and Timex watches, often work in spite of themselves.
This wouldnt be the first time that a .357Mag chambered rifle has a poorly chosen throat. There were a batch of Ruger No.1s(?) that Ed Harris worked on that all benefited from rethroating (this was before the Max craze, I think).
Frugal though I am, the reports here of better accuracy by Max'ing lead me to believe it is a throat issue, and if it is holes in the right place you want, do what it needs to get them there.
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Offline mechanic

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Re: 357 mag or 357 max
« Reply #13 on: June 01, 2010, 05:29:42 AM »
My 357 will accept 360 brass with a 180 gr. bullet loaded to the cannelure, will accept 357 max. with a .010 trim on the brass.  This is the factory cut chamber.  It still shoots will with everything I load in it.  Will shoot 38 plinkers to less than 2" at 50 yds.  Will shoot 357's to 1" at 100 yds. 
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Offline NFG

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Re: 357 mag or 357 max
« Reply #14 on: June 01, 2010, 07:54:10 AM »
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Offline jacks44mag

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Re: 357 mag or 357 max
« Reply #15 on: June 02, 2010, 07:00:19 AM »
Ok I work in a machine shop so what kind of reamer do I need to max my 357 and where can I find one
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Offline quickdtoo

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Re: 357 mag or 357 max
« Reply #16 on: June 02, 2010, 07:04:15 AM »
You can rent one and become a GBO supporter for $25 if you're in the US, see the sticky on the topic.  ;)

Tim
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