Author Topic: TC Omega Blow By  (Read 708 times)

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Offline iunderpressure

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TC Omega Blow By
« on: May 24, 2009, 08:15:25 PM »
I keep reading about tc blow by.  Is it blow by around the breech plug through the threads or through the breech plug by the primer?  I ask because i've been shooting BH209 for the last 2 years and I have a lot of blow by around the primer, I think.  I don't remember it back when I was using pyrodex, but that's been several years ago.  I also wonder if I need a new breech plug because you can see little channels next to the hole through the plug which kinda look like pressure is making a new way out around the primer.  The channels are where the primer bottom out not on the sides of the primer pocket, if that make any sense.

Thanks again

Offline pozoutdoors

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Re: TC Omega Blow By
« Reply #1 on: May 25, 2009, 02:58:55 AM »
What primers are you using?? I ask because I bought some winchester triple se7en primers and when fired it looks like blow-by but they are just that dirty...just firing one without any powder or bullet blew crap up on to the bottom of my scope. I switched back to standard 209 primers problem solved!!!

Offline Busta

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Re: TC Omega Blow By
« Reply #2 on: May 25, 2009, 05:27:47 AM »
You definitely need a new breech plug if you are getting gas cutting in the bottom of the primer pocket. You can also bet that your flash hole has also eroded and enlarged, thus making things worse.

I have some plugs that give a perfect seal with o-ring in the bottom. The only problem with that is the primers themselves sometimes leak soot between the primer and battery cup leaving a small soot ring on the breech.

Get yourself a new breech plug, then see how things go. You may also have to adjust your breech block lock-up to make it tighter.

like was mentioned in the previous post, primers can make a difference, but get a new breech plug first.
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Offline coop2564

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Re: TC Omega Blow By
« Reply #3 on: May 25, 2009, 05:41:29 AM »
Get a new plug I have no blow by in my omega.
Browning Illusion Bow
Omega Thumbhole .50_NEF Huntsman .50
Knight KP1 .243_Custom Rem 700 .308_Browning Safari Bar .300 WSM, Ruger No.1 30-06
Taurus .41 rem mag Raging Bull_S&W M&P 40C_Browning BuckMark .22_Savage 93R .17HMR

Offline iunderpressure

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Re: TC Omega Blow By
« Reply #4 on: May 25, 2009, 09:52:28 AM »
I have used several different types of primers, but right now I'm using remington sts primers.  The other day just popping off a primer to clear any oil out, smoke was coming out of the barrel up by where the ram rod goes in, out the sides, and everywhere else. 

Offline rt_con

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Re: TC Omega Blow By
« Reply #5 on: May 28, 2009, 09:37:17 AM »
My Omega started to get bad primer fouling and blowback after about 400 shots. A new breech plug cleared it right  up.  When I compared the flash holes of the old with the new B/P... I couldn't detect any noticable difference... guess it doesn't take much, since the new one solved the problem.

Oh yeah... I use the Rem STS with BH209.
Rob C