13xx steel breech question. Need several responces PLEASE. S.O.S.

[Relentless Holiday]

Hi,
I am trying to form an informed consencus Regarding the Steel breeck for the 1317 VS the 1322.

I need several responses to provide information for a dispute.

The gun in question is a 1377. When loading the breech is wide enough to fit a .22 pellet and the .177 pellets are turning sideways and jamming when loaded with the bolt probe.

I had believed the .177 breech was different and milled smaller.  It is the contention by others that the Crosman breech is actually sold the same dimensions for both guns. 

Please Post as many brief responses as possible and indicate your level of experience as back up for or against my belief.

If anyone can recommend a link to the dimensional specs fo the breeches that would be helpful as I have already sent photos with this guns measurements to the party who will be deciding this.

Thanks,

[mobilehomer]

They are the same. The only difference is the bolt.

[Mr. Panther]

Yup Ken. Same size different bolt.

[mr007s]

SAME, if you are referring to 1377 vs 1322

I have no idea or answer if you are referring to  1317 VS the 1322 as stated in opening post

[Matchstickshooter]

 Same breech,... to change calibers you swap barrel and bolt probe.

[K.O.]

+1 to the above...Also the same with the short steel breech...

[Rabbit\Squirrel Killer]

They are the same breech, screws, handle too, except with different bolt probes. 

In fact the 1377, 1322, 1740, 2240, 2250, 2260, 2300, 2400, Maximus and Discovery use the same breech. The one difference is the probes caliber. I have worked on them 100s of times.

So I would describe myself as knowledgeable. Here are pics of my current parts on hand.

 

[SwampHunter]

They are the same breech, screws, handle too, except with different bolt probes. 

In fact the 1377, 1322, 1740, 2240, 2250, 2260, 2300, 2400, Maximus and Discovery use the same breech. The one difference is the probes caliber. I have worked on them 100s of times.

So I would describe myself as knowledgeable. Here are pics of my current parts on hand.

 

Doesn't the disco and maxi breech have a rear ward "hidden" breech screw that won't work on the 13xx/24xx without drilling the tube?

[Rabbit\Squirrel Killer]

They are the same breech, screws, handle too, except with different bolt probes. 

In fact the 1377, 1322, 1740, 2240, 2250, 2260, 2300, 2400, Maximus and Discovery use the same breech. The one difference is the probes caliber. I have worked on them 100s of times.

So I would describe myself as knowledgeable. Here are pics of my current parts on hand.

 

Doesn't the disco and maxi breech have a rear ward "hidden" breech screw that won't work on the 13xx/24xx without drilling the tube?

A lot of the tubes have two screw holes so you can use either one, some do not give you the choice, true!

[7624452]

All Crosman steel breeches of standard length with the screw hole in front are the same size.  I have always preferred .22 cal because the .177 is too difficult for me to load.   

[Rabbit\Squirrel Killer]

All Crosman steel breeches of standard length with the screw hole in front are the same size.  I have always preferred .22 cal because the .177 is too difficult for me to load.   

I agree .177 works easier with BB's, I seldom get BB's in backwards or sideways .
If you get the BB in wrong it may curve or tumble. 

[only1harry]

Looks like you got most of your answers but I am moving it to the Crosman gate where it should be.  You 'll get more help there.

[Relentless Holiday]

Thank you all for the education. I just can't believe how many crosman wadctters have jammed sideways ...no matter how hard I squint....     I just assumed it could be better.

[Rabbit\Squirrel Killer]

Thank you all for the education. I just can't believe how many crosman wadctters have jammed sideways ...no matter how hard I squint....     I just assumed it could be better.

Maybe, your not holding your mouth right? 

Try to emulate the razz emoji while loading. 

[rsterne]

They may be "tripping" on the small screw hole in the bottom of the loading tray.... Try filling it with candle wax and see if the problem goes away....

Bob

[Tom Tucker]

They may be "tripping" on the small screw hole in the bottom of the loading tray.... Try filling it with candle wax and see if the problem goes away....

Bob

This is exactly what I do - except I do it with black crayon.  Works perfectly.

[JeffB1961]

good info ! i'll suggest getting the probe for the caliber you don't have when you order the breech and also a few extra o-rings for the probes just to have on hand . on my 13xx metal breech i drilled and tapped for two more set screws to secure the barrel . why ? because i'm into over kill and because I COULD ! hahaha .

i'll also suggest ordering the 1701P prod trigger , much better than all the mods and polishing i did to the stock trigger after i adjusted it to my liking . be VERY careful of the little ball bearing when removing the stock trigger if you take it off . i ordered a few extra of those and transfer ports to have just in case because i drilled out the stock TP and was afraid i'd tear it up , but i didn't .

[WyoMan]

Another option to candle wax... get some 4-48" x 1/2" flatheads...

Turn the head a little, then part just beyond the jaw marks:


Sits flush to the counter-bore:


I know, it's a screw for a countersink - not a c-bore, but you'll be the only one who knows 

Wyo

[Relentless Holiday]

Another option to candle wax... get some 4-48" x 1/2" flatheads...

Turn the head a little, then part just beyond the jaw marks:


Sits flush to the counter-bore:


I know, it's a screw for a countersink - not a c-bore, but you'll be the only one who knows 

Wyo

Whoh! a marine 1322 that looks sooooo cool.  Love to see a full brass one ala gold finger..  The frame, tube, barrel.  put some cherry colored wood....mmmmm sweet.

...And thx for the wax/crayon idea.  I was thinking of a bit of ramp work to the screw hole. Much quicker fix

[Bentong]

You can also just point the barrel down then drop load your wadcutter pellet.