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PostPosted: Mon Jan 27, 2014 8:15 pm 
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Joined: Sun Jul 01, 2012 4:25 pm
Posts: 199
Location: HRM N.S.
A couple of weeks ago I posted the chrony results for my 2289 in the "General Airgun Chat" section. I thought I would follow up with the new results in this section as I have finished modding it. I was going to finish this project later this year, but it's my goto plinker while I work on a couple of other projects and those initial low chrony results were just unacceptable.
So here are the results after installing the flat-top-piston. These are just rough average numbers, using Crosman Premier HP, 14.4 grain.
Pumps=FPS
4=390
6=455
8=515
10=550 + air left over in the valve
Now that's better!
I just have to finish clipping the hammer spring so it stays under 500FPS. I will probably be using this at 5-6 pumps(450FPS) for target shooting.
For those who are interested here is list of the mods I did to this gun.
Polished: trigger, sear, and hammer. Lightened the trigger/sear spring. Turned down tip of bolt probe to 3/32". Installed flat-top-piston,steel breech, trigger shoe, anodized barrel band & muzzle break, upgraded link pin,also a LPA MIM sight. Though for now I have mounted a Leapers Bug Buster scope on it, just until I finish my 2250 project.
Overall I'm very happy with these mods, pump arm has a nice solid feel to it now, action and trigger are smooth, less pumping and best of all it hits hard. So far I'm happy with the Leapers scope.
Regards Ranger


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PostPosted: Tue Jan 28, 2014 1:57 pm 
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Joined: Wed Dec 21, 2005 11:27 pm
Posts: 2079
Location: Toronto
Great job with the mods.

You have the 14" barrel version right?

_________________
"...await the right moment for one, and only one well-aimed shot" - Vassili Zaitsev


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PostPosted: Tue Jan 28, 2014 3:48 pm 
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Joined: Sun Jul 01, 2012 4:25 pm
Posts: 199
Location: HRM N.S.
Yes 14" barrel, and obviously the detuned CDN. version.
Thanks to some very helpful post on this forum by rsterne and parts & tips from airguneric this was quite an easy and enjoyable build.
Hmm... I'm thinking a 1322 would make for a fun project next winter, if I can wait that long :)
Cheers


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