GTA

Airguns by Make and Model => Crosman Airguns => Topic started by: Rick67 on January 13, 2020, 02:11:01 PM

Title: 22xx/13xx and 17xx Barrel Interchangeability
Post by: Rick67 on January 13, 2020, 02:11:01 PM
Hi, gents.

I was wondering if you can install a 22xx barrel into a 1720T/1701P breech.

The diameter is the same but there are flat sections (not a problem, IMHO) for the breech set screws on the 17xx barrels as far as I have seen on videos.

I am not sure if the transfer port would line up though---or is there a difference in the "leade" portion of both barrels?

The reason I am asking is because I have a spare 22xx Lothar barrel which I may be able to use if there is no machining involved.

Thank you!
Title: Re: 22xx/13xx and 17xx Barrel Interchangeability
Post by: Blutroop on January 13, 2020, 02:46:26 PM
I know a mrod barrel will line up and work in a prod. You don’t have a breech oring to worry about with what your talking about though.
Title: Re: 22xx/13xx and 17xx Barrel Interchangeability
Post by: Rick67 on January 13, 2020, 02:54:38 PM
Thanks, Mr. Jeremy!

I am about to ring Crosman and order a 17xx breech pending the result of this thread.

If it fits, the 22xx Lothar, then I do not have to buy a 177xx Lothar barrel anymore.

Might save $50+ or more  ;D..

My spare is a 14" 22xx Lothar, btw.
Title: Re: 22xx/13xx and 17xx Barrel Interchangeability
Post by: Blutroop on January 13, 2020, 04:40:16 PM
I talked to them last week and tried to get a fortitude barrel from them. No dice. Marauder barrel was 30something with 20$ shipping! If you have a drill press it’s not hard at all to move a transfer port.
Im a little confused on what your trying to do though? Are you taking a 1701 and making it a 22 single shot pistol? You could get the prod breech and bolt and have a repeater. Or are you going with long slugs or something?
Title: Re: 22xx/13xx and 17xx Barrel Interchangeability
Post by: Rick67 on January 13, 2020, 05:21:52 PM
A 1720T breech is what I intend to get.

My barrel is a14"  22xx LW .177, hence the inquiry  ;D..

Thanks!
Title: Re: 22xx/13xx and 17xx Barrel Interchangeability
Post by: mobilehomer on January 13, 2020, 06:11:34 PM
The 1720T uses a breech o-ring same as a Mrod. The LW 22XX barrel will need to be machined for the o-ring and this will probably also change the location of the transfer port. You will lose about 3/4" to the machining and need a new chamber and leade cut.
Title: Re: 22xx/13xx and 17xx Barrel Interchangeability
Post by: Rick67 on January 13, 2020, 07:55:51 PM
Thanks, Mr. Ken!

I need to buy a 17xx barrel then, lol!