FX New member and new PCP owner

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Amwolf

Amwolf

Member
Sep 9, 2024
4
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eaton, nh, usa
Hi all,
I recently bought an FX Dynamic Express .30 (600mm) and I am excited to see what I can do with it. I have been shooting 22LR for years but decided I wanted to try airgunning since the technology has come so far. Being an newbie to PCP air rifles, I have a question:

Do I need to do anything to maintain the rubber breech seal. It looks like a high wear item so I am wondering if I should put silicon oil or ballistol on it periodically.

Kudos to FX for making such a great product. I am honestly thrilled with it after the 120 or so slugs I have shot out of it already. The only things I would have changed so far is to have it ship with two magazines and a baggie of extra seals (like every other manufacturer does) but now I'm just nitpicking.

Thank you all and glad to be here.
 
Amwolf said:
Hi all,
I recently bought an FX Dynamic Express .30 (600mm) and I am excited to see what I can do with it. I have been shooting 22LR for years but decided I wanted to try airgunning since the technology has come so far. Being an newbie to PCP air rifles, I have a question:

Do I need to do anything to maintain the rubber breech seal. It looks like a high wear item so I am wondering if I should put silicon oil or ballistol on it periodically.

Kudos to FX for making such a great product. I am honestly thrilled with it after the 120 or so slugs I have shot out of it already. The only things I would have changed so far is to have it ship with two magazines and a baggie of extra seals (like every other manufacturer does) but now I'm just nitpicking.

Thank you all and glad to be here.
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Congrats on your purchase. You are well on your ay to owning multiple air guns in the near future. A wonderful hobby and for me a lot more fun than 55 years of powder burners. In your breach seal plumbers silicon lube every so often will keep seal in good condition. Don’t over do it a little goes a long way. Have fun
 
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Amwolf said:
Hi all,
I recently bought an FX Dynamic Express .30..
Do I need to do anything to maintain the rubber breech seal. It looks like a high wear item so I am wondering if I should put silicon oil or ballistol on it periodically.



Thank you all and glad to be here.
Click to expand...
@Amwolf Welcome to AGN. For breech o-rings and most other o-rings it is good to coat them with 100% pure silicone oil or silicone grease. It’s a good idea to keep a few spare breech o-rings. Although I haven’t seen any of mine in various guns wear out easily. I’ve had to change more because I blew them out by not closing the bolt completely and pressing the trigger to shoot. You should be able to find the o-ring sizes for your gun in an exploded diagram or a corresponding parts list provided by the manufacturer either in you owner’s manual or online.

I like using these


 
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It is not an emergency, I bought my first PCP in 2020 and have not replaced a breach seal yet. But I have needed a few other O-rings. I would do as others have suggested and stock up before they fail (so when they do it isn't a big deal). I've purchased O-rings multiple places but my favorite at this time is McMaster Carr. They gave me overnight delivery on my last order for no extra charge and they show the O-rings OD as well as ID and thickness. Most only show the ID and thickness. Several times I have ordered the wrong size. It is HUGELY easier to measure the OD. I know how to do the conversion but my other excuse is the extremely wide range of O-ring sizes so you have to look at a lot of data to find what you need.

If you find somebody offering a set of O-rings for your gun I would seriously consider it. Some you may never need and you may want extras of some but it would be a good insurance set to have on hand.
 
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