Win sthp still have primer problems? - Pistolsmith
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Old 09-28-2012, 02:33 AM   #1
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Win sthp still have primer problems?

I have had pierced primers with Winchester Silver Tip Hollow Points, the win jacketed soft points run great. I am just finishing up another 9 X23 build (Caspian wide body) I plan on using as a carry gun and would like to get a stock of STHP. I still have about 200 rounds from 2 years ago, that I had issues with (pierced primers) and plugged fireing pin hole. I use it for practice and save the brass, but can not count on it for a carry weapon.

Has Winchester fixed the problem? I noticed they are packaged in a new box and am hoping they improved their bullets along with the graphics on the packaging?
 
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Old 09-28-2012, 04:53 PM   #2
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I've never seen any problem with Winchester Silver Tips, nor has any one else mentioned this problem.

In my experience, when you're having pierced primers and clogged firing pin holes with factory ammo, the most common cause is a mis-match between the type of firing pin and slide.

That's where I'd start.
 
Old 09-28-2012, 10:14 PM   #3
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Definitly would be a contributing factor and I will check it in the old gun and make sure the new one is tight and has a strong return spring. It only happens with the STHP, I guess because it is hotter.

There where some posts I recall reading, describing the some issue with the STHP primers, here ia one from Dane:

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Dane Burns
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Posts: 3,828 Re: New production 9x23 ammo

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Exactly Bill. I had forgotten who did the case cutting but it was appreciated. Primers go before the case which is what is required with this caliber.

Too bad no one has ever loaded the cartridge right. Winchester had the right case, which was John Ricco's @ CP design. But Winchester loaded their ammo too hot (1500/1550 fps in some of it) and used the red primer sealant whcih will clog the firing pin holes on even the reduced 9mm fitring pins. It generally isn't primer bleed but a combo of that red primer sealant and primer material that clogs the gun up and forces a stopage by light primer hits. Just takes a couple of hammer strikes to clear it, but a bad sistuation in the middle of a gun fight.

Now Corbon has loaded ammo with great bullets and obviously it is hot enough ammo but the Starline case won't take the pressure in barrels that will shoot 9x23 brass with ease. My hope is that Corbon will switch their production and use only the much stronger Winchester 9x23 case. this was DONE 9/18/09 I've let them know of the problem already and they are concerned.

Till that happens the only 9x23 factory ammo I can fully recommned for self defense use is Winchester Silvertips and the white box Soft Points and only if they have no red sealant on the primers. I'll get back to you after we have tested the newest Corbon offerings in Winchester 9x23 brass.

"9x23 Winchester has a smaller internal volume than the generic 38 Super SAMMI case. Smaller volume means higher pressures, powder charge and OAL being equal.

Max 38 Super SAMMI load specs are 36,500 PSI. Max 38 SC and 9mm SC are 40,000 PSI , Max SAMMI 9x23 Win is 55,000 PSI. 9x23 is 42% thicker at the web than 38 Super. The 9x23 is so strong the primer becomes the weak link."
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