Review of two Crosman aftermarket repeater breeches and ramblings of a remodel.

Forums PCP Airguns Review of two Crosman aftermarket repeater breeches and ramblings of a remodel.

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    biohazardman
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    Well I am getting back into this modding thing again after some years away. I Have the blue gun originally a 2240 which I put together near 20 years back. DAQ breech, cut down 22xx barrel that I switched the breech end for the muzzle end as it was tighter at the breech, modded valve, paintball drop forward, hammer spring adjuster, fake co2 cart and some nice wood grips. It was a great extremely accurate.22 gun at 640fps and I shot half inch groups at fifty yards for tens of thousands of rounds. But after I picked up an FX Impact I got spoiled so just had to have a repeater. I picked up a couple of aftermarket repeating breeches to try out I will give my opinions of the good and bad of each.

     

    First I purchased the Exclusive Breech it is made in Thailand.  https://www.etsy.com/shop/TheExclusiveAirgun  It was delivered in less than two weeks loose in a box with a piece of pillow wrap beside it. Although not impressed by the packaging I was impressed by the machining and looks when I first saw this breech. But the minute I ran the action my joy turned to dismay as there was a tremendous amount of slop in the lever and parts connected to it. I took it apart to convert it to left hand which on this breech is easy to do and got a good look at the linkage first hand. It looked like people had used their teeth and fingernail files to shape these steel parts of the breech no wonder it was so sloppy. So once the left hand conversion was done and I added a bit of grease here and there and tried to put it on my gun. The supplied screws were all metric so did no fit my gun. There was a piece of some kind of soft rubber like tubing I expected was for the breech seal although it may have werqed I did not use it. I put the breech on my gun but I did not use the supplied screws or breech seal to do so. To my surprise the breech functioned just fine even with all of the slop it locks up tight when loaded. So overall it’s a werqing unit it looks great and functions just fine at the moment and if you don’t mind a little DIY for the install this is just an OK unit but nothing to rave about. This unit is a bit larger/wider than the CustomAir breech which is a bit taller than this one I expect they weigh nearly the same.

     

     

     

     

    Next is the CustomAir breech  https://www.airgunbuy.com/side-lever-breech-crosman-2240-2250-2260-discovery.html  I picked up it is from Georgia the country not the state and it took a month or so to get here. I think it went across the country on camels then across the ocean on a sailboat and when it finally got to New York then it came across the US in a covered wagon. Or so it felt that way as I waited impatiently for it's arrival. It was wrapped in some kind of closed cell foam then in packing tape put in a bubble wrap bag and sent off somehow it got a pretty good nick in the front of it don’t know how this happened as this thing was wrapped up tight. But it took a month to get here so I’m not saying anything.  Ordered another and got it in a week. Both not only looked good but it functioned smooth as silk sooo.. nice beautifully machined inside and out. It also has the correct hardware  sae screws to fit the breech and the 22xx guns at the rear. It has a bracket that slides over the tube and then attaches to the breech to make things much stronger up front but I will not be using that part as I will drill another hole down from the top and into my tube to give it more strength. So I got to werq removing the Thailand breech and installing the Georgian breech. It fit just fine but although the breech seal given was of a good material it was oversized in diameter and length so after I turned it down and chopped it off three times it was still to short and I ran out of the supplied material. So then I made several from Delrin and cut them to short over and over and… until I finally got lucky and one fit.
    I made a brass adapter and cut an FX STX liner to fit in the new breech. Then cut some carbon fiber and made some aluminum and Delrin adapters for the shroud. After all of that this breech is a werq of art that functions as smooth as butter. This breech was not taken apart as the lever can not be moved to the left side and it runs so smooth there was no reason to disassemble it.

    One would need to modify a stock Crosman barrel to use this breech see link below.  This is not a difficult task if you have a hacksaw, file, an angled burr bit for your drill for the lead in on the barrel and a drill motor to put the barrel in to spin it and dress the end up with the file.

    Is it worth $200? Well if the Thailand made breech is worth $145 then this one is a bargain at $200 shipped.

    https://www.airgunbuy.com/side-lever-breech-crosman-2240-2250-2260-discovery.html#qty

     

     

     

     

    Shoots them through the same hole at ten meters which is all I have in the basement.

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    vdwb
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    I really like your guns but the Exclusive Shop breech is from Thailand, not Taiwan. I have three of Suriya's .25 cal side lever breeches. Nice air guns!

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    shambozzie
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    Biohazardman, great guns and good stuff. Reminds me of the old Green forum when crosmans was rocking the house. Hey we may get a sub crosman forum. 

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    biohazardman
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    vdwb

    I really like your guns but the Exclusive Shop breech is from Thailand, not Taiwan. I have three of Suriya's .25 cal side lever breeches. Nice air guns!

    Thanks I thought that's what I wrote I fixed it. I know what happened I used the auto correct feature cuz I misspelled it and auto correct changed it for me so kind. Nice "airgun" it is the same gun with the different breeches and a new FX barrel and new shroud. Can't wait to get it out to shoot but alas been upallnight again so probly won't happen today. ;^(

    Those Exclusive breeches have so much potential with just a little tightening up of the tolerances they could be as good as the CustomAir shop units.  That would be nice.

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    biohazardman
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    shambozzie

    Biohazardman, great guns and good stuff. Reminds me of the old Green forum when crosmans was rocking the house. Hey we may get a sub crosman forum. 

    I does not know why I stopped modding the Crosman's but the Impact mods got me back into it again so it's a good thing. Oh, yes I remember why I stopped.    But that's another story and not a good one so I will leave it unsaid.

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    bluemoon_wulf
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    Hey Bio, so you swapped the new breech for the more expensive breech.

    Since I don't even have a garage to store stuff in, what's the likelihood of a non machinist being able to use that Georgian breech?

    Having to slim the barrel per their description stopped me in my tracks.

    As for my build, just barely received the final part last week so finally able to rebuild with new tp, new tube, new power adjuster. Hope no more leaks and wasted air.

    (Debating if building  a mrod bullpup just using performance parts, rather than getting the rifle would be cost practical vs buying a Taipan or priest. Your thoughts?)

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    biohazardman
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    Yup I made the swap alright and there's no looking back cuz I swapped out my 20+ year old Crosman barrel for an FX liner too.

    Hey I'm one of the guys that used to turn his drill upside down put it in a vise and use it as a lathe. I ruined several drills that way but I got lots of things done. That would werq fine for turning your barrel down.  You put the drill in a vise put the barrel in the drill and through a hole in a board to support it on the other side.  Then you put rubber bands around a couple of files, learned that from Gary I just used a single file, spread them over the barrel and run them up and down the barrel, while it spins in the drill, where you need to take the metal off.   You do what you need to do if you want it bad enough. I did allot of crazy things with my drill lathe and a Dremel tool and some files.  Turning down a barrel is a very time consuming thing to do if you need much off of it.

    Hey you saw what I went through with the TP on this latest of mods.  It was crazy I werqed on it all night cuz I was not going to sleep till it was done.  So, I did it over and over and… till I got it right. I really don't know how many I made but I kept cutting them off to short again and again I couldn't believe it.

    As far as a Chinese or American built gun I will always take the American even if it costs more.  I would take more American parts if they made them but it just isn't so.

    If you don't think you are up to it or you have no place to werq  then that's another story and something you have to decide on.  The addictive life of mods is only for those who have a place and the will to keep it going.  It's allot of time and effort for the finished product that sometimes costs more than it's worth.  But what's an addiction for? ;^)

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    vdwb
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     biohazardman,

    I agree completely with you about the sloppiness of the Exclusive Shop breech. At least it locks up nice when closed. I have a forum member 3D printing me a biathlon lever for mine. I think an oversized pivot pin might tighten up the breech but have not tried yet. I really like what you have built, nice looking work.

    Dennis

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    legionair
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    I’m digging the macguyver style lathe, gonna try that.

    Thanks for the review of those breeches I was considering buying one of them. Also, was looking at the multi shot breech by GMAC custom parts. Have you seen that one?

    Cant wait to see your groups with that STX barrel! Awesome build!

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    biohazardman
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    legionair

    I’m digging the macguyver style lathe, gonna try that.

    Thanks for the review of those breeches I was considering buying one of them. Also, was looking at the multi shot breech by GMAC custom parts. Have you seen that one?

    Cant wait to see your groups with that STX barrel! Awesome build!

    Yes, I saw the The GMAC breech a couple of months back it looks like a copy of the BNM breech which is a great unit.  I stayed up and went to the range.  Got a few one hole groups at 25 meters but then some poor groups as well I did not have any jsb 18gr to feed it so used the 14.3 and 15.89gr. It did not like the 14.3gr and the 15.89's are inconclusive as are the Hades.  It shot a couple three through the same hole and then a flyer or two an inch or two away from the main group. I did turn the pressure up to 1200psi though maybe that was part of the problem. I did not get the business end of my shroud glued on straight so that could be a problem also.  I'll get it figured out soon enough.

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    legionair
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    I bet once you get those bugs fixed it’ll be a laser. Why would turning it up to 1200 psi be a problem? Is it built to run on lower pressure?

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    biohazardman
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    vdwb

     biohazardman,

    I agree completely with you about the sloppiness of the Exclusive Shop breech. At least it locks up nice when closed. I have a forum member 3D printing me a biathlon lever for mine. I think an oversized pivot pin might tighten up the breech but have not tried yet. I really like what you have built, nice looking work.

    Dennis

    I was thinking along the same line about the oversized pin but think I may just drill out the lever and press fit a brass bushing in it to fit the stock pin better instead. I have been modding the blue gun gun over and over for near twenty years now. I really like what it has morphed into. 

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    biohazardman
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    legionair

    I bet once you get those bugs fixed it’ll be a laser. Why would turning it up to 1200 psi be a problem? Is it built to run on lower pressure?

    It was built to run on co2 so 800-850psi.  1200 is only a problem until I get the hammer spring adjusted right or another spring or change the pressure to whatever werqs for the accuracy to be laser like.

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    legionair
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    Sounds good.

    The dummy cart that’s installed, is that the same one Baker sells? I was thinking of either modding one similar to yours with the dummy cart or buying the tank block adapter from magnum air. I’m hesitant about the dummy cartridge tho because it seems that 1200 psi would be the highest you would want to put through it. Where did you get your dummy cart from? And do you know what psi it’s rated for?

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    biohazardman
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    legionair

    Sounds good.

    The dummy cart that’s installed, is that the same one Baker sells? I was thinking of either modding one similar to yours with the dummy cart or buying the tank block adapter from magnum air. I’m hesitant about the dummy cartridge tho because it seems that 1200 psi would be the highest you would want to put through it. Where did you get your dummy cart from? And do you know what psi it’s rated for?

    Think I may have made this one but I have purchased them from Baker and Mac1 in past years and they all werq fine.  You will need to drill the adapter through the side and then tap it and you may want to open up the port a bit as well.  I'm not sure about the pressures guess it depends on the werq you do on threading it and how well everything fits together.  I won't go over 1200psi cuz that is what the macro line is rated for.  Had some higher rated stuff once but can no longer find it.

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    legionair
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    Thanks for the advice

    For the dummy cart, did you drill and tap a spent co2 cart?

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    biohazardman
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    No, I would not trust a spent cart to hold pressure when drilled and tapped.  I had some 6061 T6 aluminum rod left over from when I used to make valves so used that.

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    legionair
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    Nice. I’ve got some 6061 but it’s 4” diameter. A little to big to make a dummy cart😂

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    biohazardman
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    legionair

    Nice. I’ve got some 6061 but it’s 4” diameter. A little to big to make a dummy cart😂

    Hey Luke it sounds like the addiction is not strong enough in this one yet. ;^)

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