2289 first impressions - aka Doomsday Bugout kit, 1322 variant

[nervoustrigger]

I ended up converting it to .177 cal as described in this thread.  I think it is much better suited for a carbine of this power level (10fpe) to get a reasonable trajectory. 

I wish you had been around when I put my offer up for a set of parts because the guy who got them just disappeared.  But knowing your background and seeing some of your work, I don't know why you're asking.  The fanciest tool I used was a drill press.  You're a high-stepper...go for it!  Or hop in the car and get over here to my shop one weekend and we can knock them out.  I'm in Laurel, about 30 min north of Hattiesburg.

[45Bravo]

We need to meet up some time nervous. I used to play airsoft with some guys from that area of ms.

I am in new Albany, near tupelo, its just a short drive down one Saturday morning.

I have been doing some things to my 1377(its now a 1322)
And to keep the barrel band secure, I used rtv silicone between the barrel and the pump tube.
Where the plastic spacer used to be on the 1377's
It tightened things up immensely.
No more random poi changes from bumping the barrel with your fingers.
It will hit shotgun hulls at 25 yards all day long.


Here is my toy in its current configuration.
Mellon air bolt and power adjuster, steel breech, stainless barrel and TKO.

[avator]

I am going to take your walkthru and do what I can with what I have. If I get in a bind. then I will take you up on that offer. I have 10 days off for the holidays but we are moving into a new place and we planned on just taking our time. One of my next purchases will be the ProChrono Digital. I need to start checking results of what I am doing. Everything feels better after my tunes but I need to see it on paper. We stopped by our local flea market this morning and I found a really strudy camera tri-pod for 7 bucks and I grabbed that. I broke the swivel off of my spring compresser this morning so I need to replace that. I'm looking at beefing it up with some threaded rod while making the throw longer. I also have some mental designs for a break apart target rack made from 2 inch PVC pipe. My sister is about 2 hours from us and we alternate trips to shoot together. I want to take the rack with me so I'm not shooting up all their targets. I did take her a set of 4 of those 3mm steel blanks to paint and shoot. They work real well. I really don't see an end in sight for this hobby. We are really enjoying it. I am a natural born tinkerer.

[nervoustrigger]

Hi Bravo, that's a nice looking 1322!  I'd love to have you over sometime to shoot, do some tuning or mods, talk airgunning, grill out, or some combination thereof.  Seriously, if you feel like a road trip or happen to be down this way, let me know.

Bill, that sounds good.  Let me know how it goes with your mods.  I figure you'll cook something else up while you're at it.

[avator]

Jason,  I checked the map, we're only about 2 1/2 hours away. I can see a shoot in our future.

[nervoustrigger]

Hey, I'm around most every weekend.  We have young boys and whereas I'm at work all week and would rather be at home, when the weekend rolls around, my wife likes to get out so it all works out.  I can get out in the shop and tinker or go in the yard and shoot.  So just let me know if you're up to making the trip.

[Railbuggy]

Bought my 2289g on Oct 14th of this year. A month later I ordered a 2400KT in .22cal. I installed the steel breach kit on my 2289 in Oct. I prefer the 2289 for target and bird shooting from my window.

[TleVta]

I checked my local Dick's Sporting Goods store yesterday. They've marked the DBO down to $79 (m-yeah, whatever), but I'm waiting for them to have a clearance sale after the holidays.

[K.O.]

I basically turned my 1322 into a 2289 love the stock and the pump grips are the best.

When I got the 14.5 barrel and steel breech that completed the transformation.

I did some lead work took down the ridge at the start of the rifling and got the pellet to seat just past to port without an extended probe just a tap on the stock while pointed down.

It was hitting  a quarter size target very reliably at 30 yards Premier hollows from the tin.

Av velocity over 15' was in the 490s at ten pumps

I hogged out the valve a bit, cut a few threads, coned the poppet head, thinned the poppet shaft, angled air passage 3/4 of the way to poppet

seat, shimmed pump cup .053 and increased transfer port size very slightly to .141-.142 a loose 9/64.

It is still nice and accurate and velocity is now in the  560-570s at 17 pumps.

I can probably get further gains by adding shims till I get it perfect. 

I will also get another barrel 18" and enlarge transfer and barrel port to .160  hoping to hit the low 600s.

I could also stuff the piston to let me over pump a bit with more consistent results. 

Aww heck all this made me realize I just need to pick another one up  just so I have one at 14.5" and one at 18" 

Aw heck I need a .20 too. 


I guess you can tell I really do like the 13xx platform...

[K.O.]

the 1377 now has a 24" barrel and is hitting 650 fps.

it still has the plastic breech.

I am cutting the barrel down to 18" today and don't think  I will lose much velocity.

I just barely eased the corner of the air passage just shy of 1/4 of the way to poppet seat,

coned the poppet head and thinned the shaft,

cut two threads off,

smoothed the leade and rifling ridge,

had to sand down nose of valve now valve face and cup and match,

had 0.65 worth of guitar pick shim under cup was to much and lost 20 fps across the board()

it now has .045 and will be adjusted until perfect...

[Big Bore Bart]

   K.O.     If your barrel is .22 cal, open the t-port and air passages to .170  before cutting the barrel.    You should see a gain.
 

[mudduck48]

And I'm hoping I can figure out something to take out the play in the barrel band. I have a 1322 that I have modified and had the same problem when I installed the BlueFork barrel band. Come to find out the stock 2289G barrel band has the same problem with a sloppy pumping arm. I fixed it and here is how. Get yourself a thin flat washer and grind the center out to where your pin will fit through the washer. I took a dial caliper and measured the slot in the barrel band and the width of the pumping arm then the thickness of the washer. If you have to, sand the washer down to where there is about 2 to 3 thou. clearance when you install the pump arm back in the gun. Spread pump arm halves apart just enough to install washer in between the two halves and reinstall arm in gun. I works great. No slop when pumping.  

[mudduck48]

found a guy online that has one of these for sale but it seems to be the older model (no bolt pellet loader) and the barrel is more than two inches longer...is it worth the $50 he is asking?

And you did not buy it? Tell me where it is and I'll buy it for my collection.
This IS the backpacker and it is not like the new doomsday backpacker. If you want a gun to mod then buy the new doomsday backpacker. The old one would be too much trouble to mod to the new parts that are out there now.

[K.O.]

   K.O.     If your barrel is .22 cal, open the t-port and air passages to .170  before cutting the barrel.    You should see a gain.
 

I bought the 14.5" 22 barrel I just sanded out the leade until the pellet seated how I wanted(just past the port) and the ridge at the beginning of the rifling was gone...

when I get another barrel in a few months then I will port it, this one will hit a quarter at 30 yards and do not want to chance messing it up.

I was thinking of only going .160 for two reasons one is that  I want to stay with a drilled out stock transfer port the other is I do not know

how big to go before the pellet will want to catch on the port. It surprised me when I went  just enough to match the transfer port and barrel.

I am guessing from a tight .140 maybe .139  to .142-.143 (my vernier is a cheap plastic dial type not precision)  Just that little bit gave me  a

gain of about  8 fps... 

I was also thinking that I would not have to mill the barrels sealing area at .160?

I am also getting the itch to get a flat top adjustable piston so I can install the flat top valve you made for the 2100 but that is going to have

to wait a bit also.  (4 grown (almost, in their 20s) kids & Christmas)

I bet it hits close to 800fps with 7.4 points when I do though

The mods are two 13XX not switching parts on one.

[K.O.]

And I'm hoping I can figure out something to take out the play in the barrel band. I have a 1322 that I have modified and had the same problem when I installed the BlueFork barrel band. Come to find out the stock 2289G barrel band has the same problem with a sloppy pumping arm. I fixed it and here is how. Get yourself a thin flat washer and grind the center out to where your pin will fit through the washer. I took a dial caliper and measured the slot in the barrel band and the width of the pumping arm then the thickness of the washer. If you have to, sand the washer down to where there is about 2 to 3 thou. clearance when you install the pump arm back in the gun. Spread pump arm halves apart just enough to install washer in between the two halves and reinstall arm in gun. I works great. No slop when pumping.

Oh yeah forgot again used this, Quack Quack  Quack for the duck...

also I squeezed the valve spring in pliers and toasted with a bic for a few seconds.  They dump 22 pumps every time and I do not have to pre cock to hold air...  but I stop at 17.

[sshewins]

Bart, can you drill the port out to .170? Will it mess up the sealing areas any? Some guy on eBay sell ones drilled to .161, iirc. I would be afraid of botching it up somehow that big.

[Big Bore Bart]

Bart, can you drill the port out to .170? Will it mess up the sealing areas any? Some guy on eBay sell ones drilled to .161, iirc. I would be afraid of botching it up somehow that big.

   My mistook   .   I mill the barrel to .177, then make my own t-port sleeves.(I has lathe and I'm not afraid to use it )    If using the factory parts, yes .160" is max.   

[Tinknocker1]

i wish Crosman would add the pumpers to the custom shop it would at least give you more options to order from i know the bug out is geared to the younger shooters i mean give the older guys a break like a longer barrel a steel breech and a whiskey flask or beer cooler dangit Chip

[D14Jeff]

i wish Crosman would add the pumpers to the custom shop it would at least give you more options to order from i know the bug out is geared to the younger shooters i mean give the older guys a break like a longer barrel a steel breech and a whiskey flask or beer cooler dangit Chip

i could be completely wrong since i never ordered from the CCS ..... but i really don't see any custom work from them , just a swapping of parts from other crosman guns that will fit on them . there's a boat load of aftermarket parts available to truly customize them and lots of info available on how to significantly improve them for very little to no money .... just add elbow grease and patience . for example ..... it's amazing how much better the trigger on them can be by just squashing the spring and using some fine sandpaper on the sear/trigger contact areas and lubing them with vaseline . longer barrels are available from crosman for less than $20 delivered . when i ordered my DBO from PA i also got the breech they sell for it .

i'm 52 and really enjoy shooting and modding my DBO kit . i actually like the fact that it kinda looks like a kids gun because it's less threatening looking to neighbors and less likely to be mistaken for a "real gun" , particularly if i'm seen pumping it . but (with the mods i've done so far) a reasonable amount of pumping will let rival the FPE of a .22 xs-25 or .22 rws 34 and can certainly exceed them for folks that don 't mind pumping more ..... with zero recoil and no need for additional HPA pumps or Co2 . at the other end of the spectrum they cam be pumped just a few times for quiet indoor or close neighbor shooting . and yes .... LOL , i'll admit i've become a real fanboy of them . but different folks have different needs and taste , the important thing is to get something that keeps us happy

[sshewins]

Bart, I just remembered a while back there was a post about a guy who used a grub screw/set screw that was drilled out as a the transfer port. IIRC, he drilled and tapped the new hole to accept the screw. Think he might have machined the top part to accept an o-ring. Very sketchy, my memory.