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Author Topic: O-rings  (Read 944 times)

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Offline handirandy

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O-rings
« on: August 21, 2012, 12:29:22 PM »
Where can I get high-temp O-rings to put under 209 primers.  I need several for me and buddies.
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Offline bikerbeans

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Re: O-rings
« Reply #1 on: August 21, 2012, 07:05:11 PM »
I don't know about high temp "o" rings but the #60 "o" rings from Lowe's (pack of 10 in the plumbing dept.) work fine in my two smokeless 45 cal MZs.  These rings also work with BH209, pyrodex & 777.  I have never tried them with real black powder.
 
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Offline Whiterabbitttttt

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Re: O-rings
« Reply #2 on: August 23, 2012, 05:19:58 AM »
I use viton for mine, and they seem to last maybe 25-30 firing per before fracture. I'll also be experimenting with alternative material.
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Offline quickdtoo

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Re: O-rings
« Reply #3 on: August 23, 2012, 10:37:20 AM »
McMaster-Carr has high temp o-rings, Atlas are good to 450º, Viton 400º, silicone 425º, they have some that are good over 600º, but they're really spendy.

Tim

http://www.mcmaster.com/#o-rings/=iz7oqz
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Offline Slackdaddy

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Re: O-rings
« Reply #4 on: August 29, 2012, 12:24:00 PM »
I get 100+ shots before changing, with no blown back,, O rings have no damage when I pull em after 100 rounds,, not sure the need for "hi temP" ones?
 
 
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Offline Whiterabbitttttt

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Re: O-rings
« Reply #5 on: August 30, 2012, 04:58:24 AM »
might be the ring. I'm going to switch to a 3mm ring for my wsm carriers as per the originator of that idea, but my homemade brass carrier uses a .8mm ring which is NOT alot of material. It burns quick and the primer residue gets into the ring quick. So it fractures right away. 20-30. It would probably still work fine with a split in the ring but I have a bag of them from harbor freight for $1.99 so I just replace them.
After I take the time to stuff 3mm rings in the wsm carriers I suspect it'll be effectively permanent.
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