Kalibrgun Cricket tactical .22 is inconsistent. Solution?

[mubhaur]

Someone gave me his Cricket tactical for fixing the issue of inconsistency.

I chronied it and it was like 880 fps, 970fps, 940fps etc.

Neither its behaviour is of unregulated gun nor like a regulated gun.

The owner has already given it to two tuners but no one could fix it.

He also installed Huma regulator but in vain.

I disassembled the gun and found that regulator is working fine.

Checked that valve pin is not seizing in the hole.

Cleaned the gun and adjusted the valve return spring at a higher pressure.

Lubed the necessary areas and reassembled it.

Now the behaviour is a bit better but then there is low or high fps by 50fps. The spread is also not like it should be.

Now as the regulator is fine, I can just assume that there may be some rough area on hammer or in the channel in which hammer moves.

I couldn't disassemble the hammer as the screw type pin that holds the hammer inside the action is too tight and couldn't be unscrewed.

I can just assume that due to some reason the hammer strike is not consistent which results into inconsistency.

Please advise.

Regards,

Bhaur

 

[madeintheuk]

Sounds like you’re on the right track. If reg is good, then hammer tension inconsistencies are next. Try and get that hammer out and look for a broken spring, or burrs on hammer and guide. My wildcat had an issue where the hammer weight would get stuck inside the hammer, and cause inconsistencies just like this.

 

[jps2486]

I had a similar problem with a RAW. Turns out the hammer was dirty with heavy grease which came from some internal lubrication. I cleaned the hammer, spring, and internal hammer channel, lubricated the parts with a very light coat of Ballistol and the problem disappeared.

 

[Ricochet]

I would revisit the regulator, polish the washers, and the stem that goes thru them to mirror. I had an Argus 60 with same issue. Turned out there was a slight bit of rust formed in the reg on the washers and stem. After polishing the internals, the gun performed as advertised by Kalibrgun.

 

[Centercut]

With Crickets its usually the hammer and hammer "tunnel". Remove the hammer. Clean and polish the tunnel, then clean and polish the hammer and hammer spring. When those areas get dirty and/or gritty then can really affect speed consistency. I do not lube those areas at all, but if you do use dry lube and be very minimal. A hot air gun might help to loosen that screw that is giving you trouble.
Mike

 

[mubhaur]

Thank you for the advice.
The hammer is sticky. Later I found that one of the trigger springs is missing that causes the hammer rub with the sear.

Trying to arrange the spring as shown in a pic picked from Internet. The required spring is highlighted with red colour.