Extra Breech O-Ring ??
I,ve noticed that when the time comes to replace the breech o-rings (90 Duro Viton) on my Stealth,,that the air leakage seems to be greater at the barrel end of the breech slider. The top-hat end usually seems to be OK. The barrel is a LW,,supplied by Leupy and the breech area is in perfect polished condition. I wondered if the short,fast movement of the breech, when firing, over that part of the barrel is causing accelerated wear ? If so,,has anyone fitted a second o-ring,,next to the existing one,,to at least delay the wear a little? Its not a major problem,,just something else to fiddle with really,,but I would be interested to hear peoples views.
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Funny enough, i thought about that. I came to the conclusion that if you had two barrel bearing o rings, it would always be the first one taking the real beating from the pressure as its first in line. The second one would catch any leak through. I think the first would wear at the normal rate as its only when under pressure that the real wear occurs.At the point of hammer strike up to valve opening,, they dont sit that tight to the barrel. Also maybe the added friction of a second o ring would outweigh any benefits.
Would be interesting to try. 😀
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I found that the o-ring that was on the barrel side was not making contact due to the cut being too deep. I enlarged the o-ring groove and installed an o-ring that fit nicely. It’s a little harder cocking but noticed also it is quieter which I’m guessing was leaking air. Also I feel the tighter fit helps keep the breech in contact with the tophat better. The size I used was #78.
I’m continually impressed with the accuracy of this condor and this thing is truly addictive. Off to go fill up the CF tank which seems to last me two weeks.