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 Breech Plug o-ring

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Clyde



Number of posts : 369
Age : 64
Location : Delaware
Registration date : 2011-11-27

PostSubject: Breech Plug o-ring   November 26th 2017, 12:48 pm

Folks got a question for ya that use these in a breech plug to tighten headspace and eliminate blow back.  I was out today and shooting my oldest muzzleloader a Rossi 50 cal inline it does not have o-rings on the plug nor is it the tightest fitting it has always suffered from blow back so I thought i'd put an o-ring in.

Started shooting now I usually use BH209 but my Cabelas was out and all I had was a new can of fffg 777, no matter what I tried changing ramrod pressure, how I wiped the bore between shots you name it I tried it I could not get 3 shots to consistently group I'd usually get 2 with a third way outside .

So I pulled the o-ring from the plug got a 1.72 group 1.96 group and another 1.72 group now thats average I know guys here shoot better than that so do I on a good day but with a 12-15 mph crosswind and frankly that is this rifle 1.5-2 inches but it goes bang everytime.  

My question is would an o-ring obstruct the fire coming from the primer that much ?  I mean the improvement was that quick and that drastic.
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hunting savage



Number of posts : 133
Age : 71
Location : southern Mi
Registration date : 2014-05-03

PostSubject: Re: Breech Plug o-ring   November 27th 2017, 6:46 am

THERE IS A LOT OF GREAT INFO HERE. NOW THAT SAID EVERY GUN IS DIFFERENCE AND SHOOT DIFFERENCE ALSO I;VE TRIED SOME OF THESE THING AND DIDN'T WORK GO WITH SHOOTS THE BEST BLACK POWDER GUNS ARE DIRTY SO ARE MODERN RIFLES ALSO. I DON'T WORRY ABOUT CLEANING A GUN WHEN SHOOTING IT COME WITH SHOOTING ENJOY
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Buck Conner
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Age : 78
Location : Lehi Utah
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PostSubject: Re: Breech Plug o-ring   November 28th 2017, 1:57 pm

Clyde, where the heck have you been, you have been missed.  Shocked

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Marty
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PostSubject: Re: Breech Plug o-ring   December 2nd 2017, 7:47 am

0-rings may work but I don't use them.

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p.s.  Why don't I use the them Question  
I have used them with success... but there was no improvement in accuracy.  To me it's not worth the tweaking to add a non-metal variable to the ignition equation.  
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Clyde



Number of posts : 369
Age : 64
Location : Delaware
Registration date : 2011-11-27

PostSubject: Re: Breech Plug o-ring   December 9th 2017, 9:46 am

I've had a tough deer season haven't seen much at all but do have 2 does down.
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muznut

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Number of posts : 721
Age : 60
Location : Maine
Registration date : 2012-01-24

PostSubject: Re: Breech Plug o-ring   January 23rd 2018, 4:13 pm

Triple seven is more accurate with a weaker primer and with blow back in your Rossi removing the o'ring thats what was produced .
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