Frustration has officially set in!!! I can't get my FX Dynamic to stop blowing breach orings in the barrel. I am replacing it every time I go shooting. How can I prevent this??????
STX Barrel Breach o-ring
- Thread starter Jnewood
- Start date
A little more information might be helpful....such as caliber, shooting slugs or pellets, any modifications, worked on recently, did it do this from new....etc.
mike
mike
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25 cal...shooting 46 gr slugs....recently put in a huma air regulator....the barrel is new.
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What bore size slug are you using. What pressure. Are these official fx, 70-90d and correct size ? Is it FX or aftermarket tp/inlet?
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Be careful of Amazon o-rings. Buy from somewhere reputable like oringsandmore. You could also try stepping up to a 90d. I had the same problem with Amazon crap, poor tolerances.
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Just received some fx orings...they seem a little thinner than the replacements I've been using. I'm thinking they were too thick...they did stick out of the groove a tad bit.
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I was just typing a response when I was notified of the response. But, yeah very likely it was the wrong size breech ring. Either a .22, or some off brand "close enough" size. They use proprietary sizes or oddball extremely specific sizes on some parts and it can damn near impossible to tell them apart from eyeballing one that's "close enough". Also whoever said Amazon kit orings can be incorrectly sized, mislabeled, or differing duro than claimed is 100% on point. Glad you got the real ones. Imagine it'll work
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