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Fuck KG!! No one don’t have correct size of transfer ports?
:whistle:
Without enlarging the tp, my Cricket Compact .177 is sending JSB 10.34g @ 930 fps/283 mps.
The reg with 17 disc is set to 140 bar and from a 220 bar down to 120 bar, it’s getting 6 mags = 84 shots.
It should be easier for a std to achieve higher velocity then a compact.
Where is your reg to at ?
I would think with the std length barrel and reg set to about 130 bar you should be getting about 920 fps/280 mps with 10.34g ?
~ Greg
I had the reg at 105 B on mine to achieve the same velocity with the same ammo – plus 3-4 mps still. I’m pretty sure they’ve played around with TP sizing from batch to batch. From valve to breech to barrel.
Freemanshooting had 4,11mm.
email ernest rowe, that is what I did and he gave me the barrel tp in .177, he must know the.22 as well, come back to us with his reply
Therefore I showed my measurement because I´m curious for another data from other users of crickets!
You can buy new barrel or enlarge your barrel… but is necessary know correct diameter. I do not know correct diameter for cal.22
Well, I sent my cricket to Sir Ville for tuning and he was unable to get it shooting consistently at those levels, he could only get it 263mps without massive spikes and he told me it was the barrel tp, since it is almost 2mm smaller than the other tp’s I believe him. I am not really a tuner but he is, and I don’t fancy drilling in my barrel so I am considering a .22 of I can sell off the cricket over here in Sweden, but I am in no hurry :fishinghole:
Without enlarging the tp, my Cricket Compact .177 is sending JSB 10.34g @ 930 fps/283 mps.
The reg with 17 disc is set to 140 bar and from a 220 bar down to 120 bar, it’s getting 6 mags = 84 shots.
It should be easier for a std to achieve higher velocity then a compact.
Where is your reg to at ?
I would think with the std length barrel and reg set to about 130 bar you should be getting about 920 fps/280 mps with 10.34g ?
~ Greg
I’ve seen it before. But he reduced transfer port in the receiver with some spacer.
Have you seen this video? https://youtu.be/eLDhUyDx-8M
In my case the tp in the valve and breech is the same size but the tp in the barrel is way smaller, if I remember correctly it was around 2mm smaller so I would have to drill out the tp in the barrel to reach 285 mps
but I have cal.22 I´m curious what diameter is needed!
I found this info from Ernest. http://www.talonairgun.com/forum/viewtopic.php?f=33&t=29445&p=297816&hilit=133+to+138b%3D915fps#p297816
But many user here do not use so high reg. pressure for reach 915fps !!
I have similar problem with my .177 the barrel hole is much too small so with jsb heavy 10,34gr pellets I can only get 263mps. That is why I am thinking of buying a .22 instead
Guys have you already measured barrel hole, valve hole and receiver (transferport hole)?
My data are:
Barrel hole = approx. 4,1mm
Valve hole = approx. 4,5mm
Receiver hole (transferport) = 4,8mm
I´m asking due to I could not get more velocity than 270mps/902fps with regulator pressure set to 130bar!!!
Who know why? 😳
eelect oh I understand now :rofl: 😉
Good ol’ Boys !
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Without enlarging the tp, my Cricket Compact .177 is sending JSB 10.34g @ 930 fps/283 mps.
The reg with 17 disc is set to 140 bar and from a 220 bar down to 120 bar, it’s getting 6 mags = 84 shots.
It should be easier for a std to achieve higher velocity then a compact.
Where is your reg to at ?
I would think with the std length barrel and reg set to about 130 bar you should be getting about 920 fps/280 mps with 10.34g ?
~ Greg
I had the reg at 105 B on mine to achieve the same velocity with the same ammo – plus 3-4 mps still. I’m pretty sure they’ve played around with TP sizing from batch to batch. From valve to breech to barrel.
I tried and lowered my reg to 110 bar, the max I could get was 870 fps with the 10.34g.
So I figured it must be port size related.
My friend lowered his compact to 100-115 bar to achieve 920 fps with 10.34g but he had to open up the valve outlet with a Dremel.
Which I’m not to keen on doing, but I don’t mine the higher fill pressure as long as it shoots like a laser.
If or when I can find another that shoots as well I’ll be leaving it be for now.
~ Greg