Cutting the end of a pellet when shutting the CFX breach

Hi Guys,

I have been reading the forum and I noticed a while back that there was a discussion that talked about damage cause to the breach seal on the CFX when a pellet has had is end cut off when closing the breach.

I have had my CFX Royal for about 1 month now but I noticed that this had happened a couple of times when I first got it and I was not used to the loading method.

I do not own a crono so I wanted to know if it is an automatic seal replacement when this happens or if I may have gotten away with it.

One of the other things that I have noticed is that the 0.177 RWS Super Domes that all you guys seem to like do not fit properly into the barrel. More force than I am able to exert with my finger alone will not push them all the way in. Hence the problems with the breach when I first got it. I am now using Air Arms Field pellets and they seem to go in fine while still being nice and snug in the barrel. I have heard that there are two different types of barrel that the CFX comes with one tight and one slack (mine has the serial number on the top of the barrel). Could someone clarify this for me? I am a little worried that I am not going to be able to get the same accuracy as you guys seem to have gotten if I have a different barrel. I am also concerned about having damaged the breach seal.

Thanks in advance,

Adam.

Hi Adam
Read down through this thread on the yellow:-

http://www.network54.com/Forum/479035/message/1167075606/Hey+guys%2C+merry+christmas+i+got+a+CFX

There was the same problem of crimping/cutting pellets and I tried to explain verbally what had been the problem on my gun and a solution for it. You may have to read it a couple of times, but I I'm sure my English is not so bad that it cannot be deciphered eventually!

[daved]

If it's still shooting consistently,  I wouldn't worry about it too much.  The newer breech seal Gamo is using seems pretty tough, I think it'll tolerate a fair amount of abuse and still seal fine.  If you need replacements, YOU CAN GET THEM, despite what Gamo Customer Disservice may say to the contrary.  They say you can't get them because you have to dismantle the rifle to replace the seal, and that violates the warranty.  BULL!!  Make it clear you know better, and they should come up with the seals.  Same price as the other seals listed on their site.

With serial number on top of barrel, you have one of the "tight" barrels, although in your case, it sounds like that should be tight chamber.  I think FTS's, Kodiaks, and one other are supposed to be good, Superdomes and Exacts bad, but I'm not sure.  Do a search on the Yellow, you'll find the scoop.  You might check out Dereks idea too, hadn't heard that one before, but it makes sense.  And the vagaries of the CFX rotary breech go on!  I have a re-design idea for this in mind, hope to have the time to check it out this weekend.  Will post more if it pans out.  HTH.

Dave

I'm using RWS Hobby (flat head as I shoot target), so I cannot comment on the relative dimensions of the  roundheads. What is certain, on my gun at least, is that the breech was turning slightly past the fully open position, preventing the pellet from entering the barrel fully and then shearing off a few thou.of lead  when closing. You really need to look down the barrel with the breech open to check if you see a full circle or a slightly cut-off one. Hard to put into words, but think about it and it will drop into place!

[Gene_SC]

Hi Adam

I have 3 CFX's and experienced this with my first one. It was a CFX Royal .177. All of my CFX's have serial numbers on top as well. I do not know the difference between top serial number barrels and side serial number barrels, cause I don't own one where the serial number is on the side.

When loading my pellets I did shear the rear of the skirts off a couple pellets when my Royal was new. I have had a complete Turbo Tune since then but my FPS is consistant. I was lucky that I did not damage a seal. As Dave mentioned the newer ones are much more tolerant to that.

The only way to know is to crony the CFX. Also another trick is to lay a small piece of tissue over the breach after you are loaded. Fire and see if air blows tissue off. If seal is real bad then I would expect it would blow tissue off..

Good Luck with your CFX Adam. It is a fantastic air gun.

Gene

[CHUCKMATLOCK]

how hard is it to replace  a breech seal in a c-fx? do you haev to take the barrel off? Rich may get some orders for custom levers from the reading I have done on the yellow forum about this.

[daved]

The front breech seal is pretty simple, and no, you don't have to take anything apart.  The rear seal is a whole 'nother can of worms!  Check the library, Bob has a very good article in there on how to do it.

Dave