Any US importers carrying this gun?

[SoCalZac]

Finally finished the Thumb hole stock. What do you think?

Wow great job that is absolutely beautiful!!

[FuzzyGrub]

made an attempt to machine another valve with bigger throat and exhaust. however, my grooving tool broke...i was too impatient... all the profiles are done, and part drops in.  the exhause and groove will be easy.
throat is now .253 compare to stock .217. exhaust will be .250 and barrel port will be oblong .185.

 i plan to run .25 cal later on
i gotta say. i like the valve design on this Liberty. easy to reproduce and mod

I'll be interested in the results. 

Do you have the oem valve throat, pocket, and exhaust diameters? 

[kzz1kaw]

Finally finished the Thumb hole stock. What do you think?

Fantastic job👏🏾 You tube video on how you made it. If you wanted to you could use a wood duplicator to make the same stock again if you decided to try a different wood 👍🏾

[darkcharisma]

Built-aful stock!!! 

Fuzzy, Oem throat diameter is .217 and exhaust cross section opening is even smaller. i had to open it up quite a bit. i would guess its less than .160 since the machining didnt go deeper than 1/2 of the valve.

i should be able to get the valve done monday when the grooving tool gets here. it may or may not increase fpe due to the small plenum...going to tackle that job next.

[FuzzyGrub]

Fuzzy, Oem throat diameter is .217 and exhaust cross section opening is even smaller. i had to open it up quite a bit. i would guess its less than .160 since the machining didnt go deeper than 1/2 of the valve.

i should be able to get the valve done monday when the grooving tool gets here. it may or may not increase fpe due to the small plenum...going to tackle that job next.

0.160" is not that bad for an oem 22 cal.   The 0.217" and subtracting the poppet stem, might be more of a restriction.   

My recent work with the Fortitude which also has a tiny plenum, was the bottle neck.  When I opened the ports, without changing anything else, I actually lost some speed.   I look forward to seeing you results plus the plenum expansion. 

The bigger the plenum, the more you can drop the reg pressure, keep the same power, and get additional shots.

[USAFANG6799]

Finally finished the Thumb hole stock. What do you think?

Now when you finished tuning your Liberty and combine this with that stock you have a air rifle that is truly one of a kind and priceless.

[Orion]

Finally finished the Thumb hole stock. What do you think?

Now when you finished tuning your Liberty and combine this with that stock you have a air rifle that is truly one of a kind and priceless.

wow, that looks awesome! You have serious skills!

[stretch]

On the subject of after sales support by ATI, here's what just happened to me.  My Liberty arrived on Wednesday.  I noticed the single shot tray was missing so sent ATI an email and got a reply soon after saying to expect it in a couple weeks.  No big deal, I can survive without it.  Well guess what just arrived on my doorstep?  Yup, a new single shot tray.  Barely 2 days after I asked for one.

[darkcharisma]

Fuzzy, what was the fortitudes regulator set at? my best guess is due to the pressure drop from filling the now larger ports. i think i have the same problem with my gauntlet 22. too much porting, low pressure 1300psi. ports with stock setting i got 100fps lower than oem. but the upside is i can go as high as 38fpe at 1300psi with max HST. just my guess though...

[FuzzyGrub]

Fuzzy, what was the fortitudes regulator set at? my best guess is due to the pressure drop from filling the now larger ports. i think i have the same problem with my gauntlet 22. too much porting, low pressure 1300psi. ports with stock setting i got 100fps lower than oem. but the upside is i can go as high as 38fpe at 1300psi with max HST. just my guess though...

Fortitude was around 1600psi stock.  I increased the plenum allot, and reg to 1900psi for a 25 cal conversion: https://www.gatewaytoairguns.org/GTA/index.php?topic=152837.msg155681362#msg155681362

[smythsg]

Nicely done Stephen, supurb workmanship!!!!

[Chester]

Stephen: You have done a remarkable job and your attention to detail is admirable. Congratulations! Chet

[Wayne52]

I really like that thumbhole stock that you made there Stephen it's stunning to say the least !!!

[Bob Pratl]

Stephen, Very nice design and build, you can't beat a wood stock.

[stretch]

@Stephen - I watched your YouTube video on adding a crown to the barrel.  Are you seeing any difference now that you've done it?

@Anyone - I think I read that the power control dial only affects the output power and has no effect on how many shots you get per fill.  Is that right?

[AVS Stephen]

@Stephen - I watched your YouTube video on adding a crown to the barrel.  Are you seeing any difference now that you've done it?

@Anyone - I think I read that the power control dial only affects the output power and has no effect on how many shots you get per fill.  Is that right?

Hey Stretch, I have not had a chance to test the barrel yet. I told my wife we really should move to North Carolina cause everyone is moving there. Truth...I want some warmer weather so I can shoot more often. I'll let you know how the barrel performs as soon as possible.

[AVS Stephen]

Thank you to everyone for the feedback on the stock. I will post a "how to" video later today.

[Pursang]

@Stephen - I watched your YouTube video on adding a crown to the barrel.  Are you seeing any difference now that you've done it?

@Anyone - I think I read that the power control dial only affects the output power and has no effect on how many shots you get per fill.  Is that right?

Hey Stretch, I have not had a chance to test the barrel yet. I told my wife we really should move to North Carolina cause everyone is moving there. Truth...I want some warmer weather so I can shoot more often. I'll let you know how the barrel performs as soon as possible.

Sorry, we're full, no vacancy!

Just kidding, last week we got into the mid to high 70s, and next week looks like mid 60s all week. Rare, even for here. Don't forget about the high 90s with high humidity in summer.

Nice work on the stock! Maybe you could do a video detailing the "screw swap" trigger mod. Probably be a lot of interest in that.

[AVS Stephen]

In case you are interested in making your own thumb hole stock.

[FuzzyGrub]

All the more amazing given your first gunstock!   Also, mostly with hand power tools.  and also doing the video...  Thx.  I appreciate the process that went into this.

And I'm scared to try a adj cheek riser to the oem wood stock.