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balan
PostPosted: Mon Apr 24, 2017 12:59 pm 
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Location: Stony Plain, Alberta
What durometer rating are builders using on the oring? I used 70 and am wondering if anyone has used 90 on their flat top pistons.

Ron

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If your airgun is broken, fix it. If it works, you CAN make it work better. Usually...
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Gippeto
PostPosted: Mon Apr 24, 2017 4:31 pm 
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Have used both.

Al
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rsterne
PostPosted: Mon Apr 24, 2017 8:28 pm 
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Mac1 sells 90D Urethane O-rings for that purpose.... never used one but he claims they are even tougher....

Bob

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Dominion Marksman Silver Shield - 5890 x 6000 in 1976, and downhill ever since!
Airsonal; Too many! Springers, Pumpers, CO2, but I love my PCPs and developing them!
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balan
PostPosted: Mon Apr 24, 2017 9:52 pm 
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Thanks guys. 70 is available so that is what I will go with At this time.

Ron

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