I’m very pleased to see that many people have had success with the Caiman regulator fix that I posted many moons ago.
www.airgunnation.com
My .177 has been very solid post-fix and it finds utility mostly as a travel gun due to the fact that its pretty robust and already a wee bit scratched up. The Leshiy Classic is my go to backyard .177 because it’s whisper quiet and the .177 Leshiy 2 goes in the backpack for hiking and XC skiing adventures.
A couple weeks ago, I decided that I’d like to make more use of the Caiman with a thermal optic, including loaning it out to a few friends and neighbors who have problems with unwanted furry nighttime guests. However, if it’s going to be really effective in that job, it could use more juice and less noise, which are typically confounding issues. However, much of the noise from the Caiman actually originates from the action of the exposed rear hammer within the wooden stock, which works much like a string instrument! I’ve even mulled over the idea of turning it into a tactical by designing and 3D printing a custom stock. That may still happen in the winter but for now, I’ve been focusing on hacks and tweaks to bring down the noise and increase the power.
I know from use over the past year that it shoots the 10g Zan slugs at 930fps very well, but would like to juice it up to shoot the 13 or even the 16 grain, the latter of which seemed like quite a tall order from the 400mm barrel. However, by putting the reg into bypass and looking at peak shot speeds at different pressures, I found that plateau speeds of 925-950 could be obtained at 150 and 160bar with the 16 grain slugs. There’s no shortage of hammer strike on this gun, but boy it gets loud. The porting is also .22 sized as is typical for the “afterthought” .177 model.
The first mod involved introducing a peek stub into the striking face of the hammer in an effort to dampen the very pronounced ting of the hammer. This has proven very successful, cutting around 80% of the very aggressive ting! Highly recommended for owners of this gun and perhaps other Airmaks guns with this unusual hammer:
AirMaks Arms - Caiman MK1 regulator problem
Hi. Can you please suggest any good aftermarket regulator for Caiman X mk1 in 25 cal? Its creeping so much. And giving super different speeds all the time. It is giving 230 FPS difference. Depends on the mood of the gun. UA sent me to the Airmaks because they told me they have no spare parts...
www.airgunnation.com My .177 has been very solid post-fix and it finds utility mostly as a travel gun due to the fact that its pretty robust and already a wee bit scratched up. The Leshiy Classic is my go to backyard .177 because it’s whisper quiet and the .177 Leshiy 2 goes in the backpack for hiking and XC skiing adventures.
A couple weeks ago, I decided that I’d like to make more use of the Caiman with a thermal optic, including loaning it out to a few friends and neighbors who have problems with unwanted furry nighttime guests. However, if it’s going to be really effective in that job, it could use more juice and less noise, which are typically confounding issues. However, much of the noise from the Caiman actually originates from the action of the exposed rear hammer within the wooden stock, which works much like a string instrument! I’ve even mulled over the idea of turning it into a tactical by designing and 3D printing a custom stock. That may still happen in the winter but for now, I’ve been focusing on hacks and tweaks to bring down the noise and increase the power.
I know from use over the past year that it shoots the 10g Zan slugs at 930fps very well, but would like to juice it up to shoot the 13 or even the 16 grain, the latter of which seemed like quite a tall order from the 400mm barrel. However, by putting the reg into bypass and looking at peak shot speeds at different pressures, I found that plateau speeds of 925-950 could be obtained at 150 and 160bar with the 16 grain slugs. There’s no shortage of hammer strike on this gun, but boy it gets loud. The porting is also .22 sized as is typical for the “afterthought” .177 model.
The first mod involved introducing a peek stub into the striking face of the hammer in an effort to dampen the very pronounced ting of the hammer. This has proven very successful, cutting around 80% of the very aggressive ting! Highly recommended for owners of this gun and perhaps other Airmaks guns with this unusual hammer:
