Crosman 2260 - Discovery - Maximus Barrels

[CraigH]

I need information on Crosman rifle barrels.   Specifically the rifle barrels for the 2260, Discovery, and Maximus in .22 caliber.   This being the case due to a certain cockup in the lathe machine.

Here are the subject barrel numbers and certain notations:

2260      2260-003 (2260, 7-2260)  ←- no idea about the numbers in parentheses
Discovery   2260SE-001   ← bare barre, no sight or sleeve
Maximus   6-GBMP22-001   ← bare barrel, no adapter

I have built many 22xx pistols and carbines, so have a reasonable knowledge base, and expect the subject barrels are part of the Crosman lego airgun family.  I also have knowledge of the Crosman steel breech family; long, short, forward and rearward 4-48 machine screw locations.  I also am familiar with the Crosman EVP’s.

But I have limited knowledge of the Discovery rifle; specifically the barrel sleeve and its fitment to the Discovery rifle and its breech.

Here are some related Discovery and Maximus  part numbers:

Discovery Breech –  1761-019
Discovery Sleeve —  1761-013
Maximus Breech  —  AS2250 -025

My main question is related to the Discovery barrel sleeve and breech since the Discovery breech is a unique part number (I know all the other Crosman steel breech numbers).

Is the sleeve simply over the barrel or does it fit into the breech a short distance?

TIA!!!

[avator]

I need information on Crosman rifle barrels.   Specifically the rifle barrels for the 2260, Discovery, and Maximus in .22 caliber.   This being the case due to a certain cockup in the lathe machine.

Here are the subject barrel numbers and certain notations:

2260      2260-003 (2260, 7-2260)  ←- no idea about the numbers in parentheses
Discovery   2260SE-001   ← bare barre, no sight or sleeve
Maximus   6-GBMP22-001   ← bare barrel, no adapter

I have built many 22xx pistols and carbines, so have a reasonable knowledge base, and expect the subject barrels are part of the Crosman lego airgun family.  I also have knowledge of the Crosman steel breech family; long, short, forward and rearward 4-48 machine screw locations.  I also am familiar with the Crosman EVP’s.

But I have limited knowledge of the Discovery rifle; specifically the barrel sleeve and its fitment to the Discovery rifle and its breech.

Here are some related Discovery and Maximus  part numbers:

Discovery Breech –  1761-019
Discovery Sleeve —  1761-013
Maximus Breech  —  AS2250 -025

My main question is related to the Discovery barrel sleeve and breech since the Discovery breech is a unique part number (I know all the other Crosman steel breech numbers).

Is the sleeve simply over the barrel or does it fit into the breech a short distance?

TIA!!!

The sleeve fits in the breech a bit on the stock factory part.

[CraigH]

The sleeve fits in the breech a bit on the stock factory part.

So the Discovery breech is different --- Thank you.

I will get another Maximus barrel.

[avator]

I have used Disco breeches on other Crosman "lego" guns with or without the sleeves with no issues and vice versa.

[ER00z]

When referring to the sleeve, is this what you're talking about?

Just curious

[avator]

The sleeve is just above the logo in the pic you posted. It basically provides mounting for the rear sight. I don't really see any other useful purpose for it.

[ER00z]

The sleeve is just above the logo in the pic you posted. It basically provides mounting for the rear sight. I don't really see any other useful purpose for it.

Thanks.

[CraigH]

I noted in the EVP that the sleeve mounted the rear sight.   Had some hope it might be a barrel stiffening component, but if fitted close enough for that it likely would not be a separate part.

[Van]

The sleeve fits in the breech a bit on the stock factory part.

So the Discovery breech is different --- Thank you.

I will get another Maximus barrel.

   The Disco breeches I have are different from the regular steel breech as they have the small 4-48 breech screw under the bolt and have the slight recessed area where the barrel enters for the sleeve to set into.  I use both type breeches on 2260 and Disco tubes with no problem except having to drill and tap for a rear mount 4-48 screw if the tube only has the front location.  My Disco tubes have both holes drilled but only the rear is tapped.  If using a regular breech on a Disco tube it is easy to run a 4-48 tap into the already drilled front hole. The Disco tubes I have are older ones so I dont know if the later ones or Maximus are drilled for both locations. I think the Disco barrels have a flat spot milled for the sleeve set screw to tighten on. All my barrels are 2260,1760 or 362 so I have not seen one for sure. 

[avator]

The sleeve fits in the breech a bit on the stock factory part.

So the Discovery breech is different --- Thank you.

I will get another Maximus barrel.

   The Disco breeches I have are different from the regular steel breech as they have the small 4-48 breech screw under the bolt and have the slight recessed area where the barrel enters for the sleeve to set into.  I use both type breeches on 2260 and Disco tubes with no problem except having to drill and tap for a rear mount 4-48 screw if the tube only has the front location.  My Disco tubes have both holes drilled but only the rear is tapped.  If using a regular breech on a Disco tube it is easy to run a 4-48 tap into the already drilled front hole. The Disco tubes I have are older ones so I dont know if the later ones or Maximus are drilled for both locations. I think the Disco barrels have a flat spot milled for the sleeve set screw to tighten on. All my barrels are 2260,1760 or 362 so I have not seen one for sure.

When using the rear breech screw you'll also need to use the notched hammer to clear the screw.

[Van]

The sleeve fits in the breech a bit on the stock factory part.

So the Discovery breech is different --- Thank you.

I will get another Maximus barrel.

   The Disco breeches I have are different from the regular steel breech as they have the small 4-48 breech screw under the bolt and have the slight recessed area where the barrel enters for the sleeve to set into.  I use both type breeches on 2260 and Disco tubes with no problem except having to drill and tap for a rear mount 4-48 screw if the tube only has the front location.  My Disco tubes have both holes drilled but only the rear is tapped.  If using a regular breech on a Disco tube it is easy to run a 4-48 tap into the already drilled front hole. The Disco tubes I have are older ones so I dont know if the later ones or Maximus are drilled for both locations. I think the Disco barrels have a flat spot milled for the sleeve set screw to tighten on. All my barrels are 2260,1760 or 362 so I have not seen one for sure.

When using the rear breech screw you'll also need to use the notched hammer to clear the screw.

  That is for sure!  I learned that the hard way on my first rear breech screw swap.  The hammer hits the protruding screw and bends it making it hard to remove.  I just take a Dremel tool with a sanding drum to notch the front of the hammer face and it works fine.  Just takes a minute to break through the surface and cut a concave recess at the top of the front face to clear the screw.

[Hoosier Daddy]

When referring to the sleeve, is this what you're talking about?

Just curious

Notice the photo of the sleeve is in fact on a Maximus... mine has it as well.
  So it is not only a Disco item.

[Van]

  This reminds me I need to try to order a couple of those sleeves.  I need to mount my open sights out in front of the breech as I don't focus well with the rear breech sights.  They are just thick enough to drill and tap them for fine thread screws and mount fully adjustable sights out front of the breech. I read Disco barrels have a flat milled on top to tighten the sleeve screws to but mine are 2260 barrels without that feature.  It still holds fine but I add a bit of E6000 black glue under the sight to make sure.  Here is a metal TC style sight I found at a gun show mounted that way on a 362.  Who knows how long the sleeves will be available though. 

[CraigH]

[quote author=Hoosier Daddy link=topic=217444.msg156579593#msg156579593 date=1737999993

Notice the photo of the sleeve is in fact on a Maximus... mine has it as well.
  So it is not only a Disco item.
[/quote]

My Maxius (Hunter version) does not have the sleeve.   It has the AS2250 breech.   Perhaps due the included scope (serviceable but low quality).

Edit:

I have looked at Maximus EVP's and OM's on Crosman.com and cannot find a Maximus with the sleeve.   May be an EVP or OM with the sleeve, the sort of the documents on the website is not ideal - there may be one I have not seen.

I noted Maximus models with open sights show the rear site screwed directly to the barrel.  Hunters and Euros do not have sights, rather the dittzy moderator adapters.

[Rick67]

The Maximus is still available from Balistas in the Czech Rep for $380 shipped.

They ship pretty fast; takes about 5 days for you to literally hold it.

[CraigH]

The Disco breeches I have are different from the regular steel breech as they have the small 4-48 breech screw under the bolt and have the slight recessed area where the barrel enters for the sleeve to set into.  I use both type breeches on 2260 and Disco tubes with no problem except having to drill and tap for a rear mount 4-48 screw if the tube only has the front location.  My Disco tubes have both holes drilled but only the rear is tapped.  If using a regular breech on a Disco tube it is easy to run a 4-48 tap into the already drilled front hole.

So far as I know, "regular steel breech (s)" are only those in the "steel breech kits", which have the forward located 4-48 screw.

2300S, 2300T, AS2500, Discovery, Maximus all use breeches with the rearward 4-48 screw location.   Only the Discovery breech has the recess.

I use these breeches (2300-047 and AS2250-025) for their smoother pellet loading.   Now I know there is a third breech with the rearward located 4-48 screw (1761-019) which has a recess for the sleeve.

[CraigH]

The Maximus is still available from Balistas in the Czech Rep for $380 shipped.

They ship pretty fast; takes about 5 days for you to literally hold it.

That's a pretty high price for a $200 rifle.   

[Rick67]

The Maximus is still available from Balistas in the Czech Rep for $380 shipped.

They ship pretty fast; takes about 5 days for you to literally hold it.

That's a pretty high price for a $200 rifle.   

Yes, traveling back to the US is quite expensive 

[Hoosier Daddy]

Notice the photo of the sleeve is in fact on a Maximus... mine has it as well.
  So it is not only a Disco item.

My Maxius (Hunter version) does not have the sleeve.   It has the AS2250 breech.   Perhaps due the included scope (serviceable but low quality).

Edit:

I have looked at Maximus EVP's and OM's on Crosman.com and cannot find a Maximus with the sleeve.   May be an EVP or OM with the sleeve, the sort of the documents on the website is not ideal - there may be one I have not seen.

I noted Maximus models with open sights show the rear site screwed directly to the barrel.  Hunters and Euros do not have sights, rather the dittzy moderator adapters.

Mine was the standard Maximus that came with iron sights, not the Hunter / scoped version. Maybe that's why mine has the sleeve for the rear sight as described for the Diso.

[CraigH]

Could be so.

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