Fx royale 400 breech O ring seal

mubhaur · Apr 20, 2016

I was using OEM seal and it blows after every 50 or 60 shots. OEM is 70 durometer polyurethane.

Now I put 90 durometer polyurethane OEM size seal. So far so good.

Why fx uses 70 durometer?

Is it OK if I use 90 durometer polyurethane O ring breech seal?

sniperlabyo · Apr 20, 2016

As long as the oring don't damage the skirt or to hard to close cocking handle, check for POI/groups if the same its OK. I would get the next size larger so it wont blow out.

I prefer 70D less skirt crimping.

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Fx royale 400 breech O ring seal

mubhaur

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sniperlabyo

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