Kozak bullpup .177

[muffin]

Hi
was delivered a new Kozak yesterday, the gun is very accurate very pleasing to use..........but I filled it to 250 bar last night and it only reads 190bar this morning.
My AAs510 can be filled to 220bar and stands the winter and is still ok.
graham
Its going back but has to be collected then another sent...this is uk.

Anyone had this problem ?

 

[airgunmonkey]

When I got mine, it was losing +/- 5 bar overnight, I shot the gun a few times and refilled, it cured itself, now the pressure stays right on the mark, maybe is just a oring that wasn't set correctly in place.

 

[shutik]

If you just got it and it is leaking I would just send the tube back to supplier and ask him for replacement tube. It is easily removed. You can bleed it by pressing you finger on long stem.

 

[muffin]

hi
got it replaced
graham

 

[jarmstrong]

You will have to tell how you get on with it.
Mine is a .22 and she is a sweetheart, the one I grab when there is a pest to be dispatched
So nice and easy to use around the yard. The long HW110 is getting jealious, not getting shot as much

 

[kzz1kaw]

Have it in beech 177. Very accurate 

 

[jarmstrong]

I lean on the back door frame and shoot bottle caps at 45 yd
it makes me smile

 

[airgunnerca]

"airgunmonkey"When I got mine, it was losing +/- 5 bar overnight, I shot the gun a few times and refilled, it cured itself, now the pressure stays right on the mark, maybe is just a oring that wasn't set correctly in place.

That is normal because of temperature change ... 

 

[muffin]

hi
I love this kozak had it 4 days(black one), great grouping at 45 yds but falls 8" over 70 yds, its a uk gun only 11.5 flbs, my AA S510 EXTRA .22 is 40 flbs and still loses about 2" over the 70yds.
I have used exact heavy diablo 10.34grn not waisted in as normal, these seem more accurate than the crosman premier domed10.5gr.
Seems to have a massive amount of shots filled to 250bar took 60 shots and has still 190bar.
Maybe this is a mistake on there webpage but it says more shots with .177 than .22 cannot remember the figure but is made clear more shots with .177???.Stange.
There is temptation to turn the hammer spring but the shot count would be affected.and I would be illegal

Any uk shooters want to buy my AA S510fac extra immaculate condition, handing in my licence.
graham

 

[jarmstrong]

With your 11.5 ft/lb setting, I bet you could get over 150 shots if you filled to 300 bar and shot down to 130 bar (or so)
Better buy more magazines and pellets

 

[John "spysir" Blount]

Glad your enjoying your new rifle. On the aas510 your are over filling 20% and the AA tube rifles are NOT good to over fill.


Please psot up pics of everything , rig, targets.... time permiting

John

 

[muffin]

yea
I reckon so
graham

 

[muffin]

hi

these seem to be the best for me
http://www.ebay.com/p/2x-JSB-Exact-Heavy-Diabolo-4-52-Mm-177-500-Pcs-0-670-G-Air-Rifle-Pellets/1670690277