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#5393072 - 11/01/14 10:17 PM Dirty Brass
unclebubba Offline
Pro Tracker

Registered: 11/07/11
Posts: 1217
Loc: Collin County, TX
I have been reloading 357 mag for years, but my latest range session turned up something strange. My brass is VERY dirty after firing. 18.2 gr 300MP, 158 gr JSP over small pistol primer. I was shooting them out of a Rossi 92 20" barrel. I had never noticed my brass getting this dirty, but then again, I have only had the lever gun for a short time. Is there something different about the way this cartridge reacts in a lever gun as opposed to a revolver that would make it so much dirtier? Is this even something that I should worry about?
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Originally Posted By: LandPirate
...women can be some deceitful, cheating, betraying, lying, scheming, conniving creatures.

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#5393690 - 11/02/14 11:14 AM Re: Dirty Brass [Re: unclebubba]
okie44 Offline
Tracker

Registered: 04/11/11
Posts: 612
Loc: Midland TX.
Might need to bump the charge up a bit.
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#5394359 - 11/02/14 05:19 PM Re: Dirty Brass [Re: unclebubba]
unclebubba Offline
Pro Tracker

Registered: 11/07/11
Posts: 1217
Loc: Collin County, TX
18.6 gr is max. I'm already very close to max.
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Originally Posted By: LandPirate
...women can be some deceitful, cheating, betraying, lying, scheming, conniving creatures.

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#5394712 - 11/02/14 08:11 PM Re: Dirty Brass [Re: unclebubba]
ChadTRG42 Offline
THF Trophy Hunter

Registered: 09/16/09
Posts: 9413
Loc: Lewisville, TX
You're powder charge is fine. Are you running a mag primer or standard? I'd run a mag primer with this slower powder. This could help. It's not uncommon to get a soot around the brass case in a straight walled round. Just keep shooting and cleaning your brass!
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#5394764 - 11/02/14 08:37 PM Re: Dirty Brass [Re: unclebubba]
okie44 Offline
Tracker

Registered: 04/11/11
Posts: 612
Loc: Midland TX.
300MP in 45 Colt Marlin and Rugers was miserable with mag primers, unburned powder and lots of soot. I switched to standard primers and bumped the powder charge and they cleaned up. I have not tried Mag primers with the 357, works fine with standard primers.
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“The trouble ain't that there is too many fools, but that the lightning ain't distributed right.”
Mark Twain

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#5394803 - 11/02/14 08:53 PM Re: Dirty Brass [Re: unclebubba]
bluelund79 Offline
Tracker

Registered: 04/10/12
Posts: 748
Loc: Ft. Knox, KY
Are you running pistol reload data or rifle reload data for that round? The max loads for pistol and rifle are different in a couple of the manuals that I have. I'll be doing the difference testing in my 44mag carbine and pistol in the winter

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#5395422 - 11/03/14 08:11 AM Re: Dirty Brass [Re: unclebubba]
unclebubba Offline
Pro Tracker

Registered: 11/07/11
Posts: 1217
Loc: Collin County, TX
I am running standard primers, not Magnum. I got my load data from alliant, and they said to use the standard primer, not mag. I am running the load through both my blackhawk and rifle. Because I want to have one round for both firearms, I worked up the load in the pistol. I have not noticed the same amount of soot when fired out of the pistol, and this is by far the most accurate round I have ever loaded in the pistol.
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Originally Posted By: LandPirate
...women can be some deceitful, cheating, betraying, lying, scheming, conniving creatures.

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#5395693 - 11/03/14 09:40 AM Re: Dirty Brass [Re: unclebubba]
kmon1 Online   content
junior

Registered: 09/27/06
Posts: 20289
Loc: Texas
How tight a crimp are you running, a little more crimp might help.
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#5395844 - 11/03/14 10:29 AM Re: Dirty Brass [Re: unclebubba]
unclebubba Offline
Pro Tracker

Registered: 11/07/11
Posts: 1217
Loc: Collin County, TX
I believe my crimp is tight enough. I have run a heavier crimp in the past, and had issues because my crimp was too tight. I might try a slightly heavier crimp.
_________________________
Originally Posted By: LandPirate
...women can be some deceitful, cheating, betraying, lying, scheming, conniving creatures.

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#5396927 - 11/03/14 04:46 PM Re: Dirty Brass [Re: unclebubba]
okie44 Offline
Tracker

Registered: 04/11/11
Posts: 612
Loc: Midland TX.
Over crimping can ruin neck tension. What brand are the dies?
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“The trouble ain't that there is too many fools, but that the lightning ain't distributed right.”
Mark Twain

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#5397477 - 11/03/14 08:36 PM Re: Dirty Brass [Re: unclebubba]
unclebubba Offline
Pro Tracker

Registered: 11/07/11
Posts: 1217
Loc: Collin County, TX
Lee dies
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Originally Posted By: LandPirate
...women can be some deceitful, cheating, betraying, lying, scheming, conniving creatures.

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