Walther LGV ... Just how HOT can they shoot ?

[Gear_Junkie]

Pistons get spring cavity liners along with custom fitted spring guide .... Lubes are minimal.
Few other tricks in use & we're not going there.

Lol,

No worries, thanks Scott!

[Motorhead]

  Being tune that created the POWER subject of this thread ... WAS NOT what we were after, owner of the rifle being tuned in actuality wanted a 12# power tune of better accuracy and shooting behavior that is the typical factory set up 

GTA long time member UGLYMIKE out in Nebraska loves his Spring piston air rifles and gets to shoot it seems when ever he likes.
Even has early hours access to a Covered weather isolated tennis court which allows some bench rest time shooting his Airguns.

This last week Mike sent me a target from his efforts shooting his Detuned Walther LGV .177 
What we ended up with after the WHOA power findings changing spring & some set up specs ... was a soft tune utilizing the same spring tho much less preload.  End result was a snappy & crisp +/- 12 ft lb tune that has seemed to further transform the LGV platform into one stupid accurate SPRING PISTON air gun.  I mean these LGV rifles are accurate, Mikes shooting his retuned LGV is nothing short of just ridiculous 


This pic allows reading his text notes & misc ....


Here with back lighting some of the groups shot ... AT 30 meters these are nuts !!!! .... a quality PCP and proficient shooter would have trouble besting them 


Dang Mike, nice shooting.

[neil180]

Some excellent shooting!

I have a comp ultra in 177 and I love it. It is without doubt my favourite break barrel and it is crazy accurate. It is set at just over 11 ft / lbs and it is lovely to shoot. I have a zeroing target set out at 62 yards in my garden and I can regularly hit the dead centre spinner of the target with this gun.
I know that moderators are not allowed in the US but this video does a good job of showing the gun in action anyway. All I have done to it is relubed it and added a PTFE sleeve to remove a little 'twang' that was apparent before ...

www.youtube.com/watch?v=7UuNcrE0p9I

[uglymike]

First and foremost, I want to say this. If you're not using Motorhead for all of you air gun tuning needs, you're making a mistake. Period. He called me, we talked about what I wanted, he listen more than spoke, and then went to work. I estimate my LGV .177 had +30,000 pellets thru it when it went to Motorheads house. Scott is an Airgun tuning savant IMHO.
I'm blessed to live less than a mile from an indoor tennis court on one end with batting cages and handball courts/locker rooms along a hallway. Shooting the length of the tennis court and down the hallway I have a tad over 50 meters. Heated, no wind, no distractions, and I have the place to myself, literally, at 6:00 AM. In the winter I shoot +1000 pellets a week. $120 a year membership 
My .22 LGV will soon be getting some "outside of the box" tuning courtesy of Motorhead.

[Yogi]

Some excellent shooting!

I have a comp ultra in 177 and I love it. It is without doubt my favourite break barrel and it is crazy accurate. It is set at just over 11 ft / lbs and it is lovely to shoot. I have a zeroing target set out at 62 yards in my garden and I can regularly hit the dead centre spinner of the target with this gun.
I know that moderators are not allowed in the US but this video does a good job of showing the gun in action anyway. All I have done to it is relubed it and added a PTFE sleeve to remove a little 'twang' that was apparent before ...

Neil,

What scope do you have on your LGV?
Thanks,

-Y

[neil180]

Some excellent shooting!

I have a comp ultra in 177 and I love it. It is without doubt my favourite break barrel and it is crazy accurate. It is set at just over 11 ft / lbs and it is lovely to shoot. I have a zeroing target set out at 62 yards in my garden and I can regularly hit the dead centre spinner of the target with this gun.
I know that moderators are not allowed in the US but this video does a good job of showing the gun in action anyway. All I have done to it is relubed it and added a PTFE sleeve to remove a little 'twang' that was apparent before ...

Neil,

What scope do you have on your LGV?
Thanks,

-Y

A cheapo one

Nikko Stirling Mountmaster 6x40

Nice clear glass and suits the gun for me

[uglymike]

Here's some crony numbers after 500 shot break in.

AA 8.4 gr 4.51mm    JSB 8.4gr 4.52mm       FTT 8.64gr. 4.51mm
1. 813                             1. 815.2                  1. 814
2. 813                             2. 817.6                  2. 817.6
3. 819.5                          3. 818.8                  3. 818.8
4. 822.0                          4. 807.2                  4. 808.4
5. 819.0                          5. 811.4                  5. 811.5
6. 819.5                          6. 814.7                  6. 818.1
7. 815.6                          7. 815.3                  7. 815.3
8. 816.6                          8. 814.7                  8. 810.8
9. 814.2                          9. 814.9                  9. 808.2
10. 812.7                        10. 816.8                10. 823.3

[Gear_Junkie]

Sweet numbers for sure!

Scott - can the rods be removed (unscrewed?) from the LGV pistons in order to hone the interior of the chamber and smooth it out?  Or is this a waste of time given that you can just slip in a liner to keep the spring from hanging up on it?

[Motorhead]

Sweet numbers for sure!

Scott - can the rods be removed (unscrewed?) from the LGV pistons in order to hone the interior of the chamber and smooth it out?  Or is this a waste of time given that you can just slip in a liner to keep the spring from hanging up on it?

Zack,
Use a liner.
It also bridges the gap between compressed coils some further reducing harmonics.  ( Put Spring Tar between liner & piston )  Did I just give a trick away ... think I did 

[Rocker1]

Sweet numbers for sure!

Scott - can the rods be removed (unscrewed?) from the LGV pistons in order to hone the interior of the chamber and smooth it out?  Or is this a waste of time given that you can just slip in a liner to keep the spring from hanging up on it?

Zack,
Use a liner.
It also bridges the gap between compressed coils some further reducing harmonics.  ( Put Spring Tar between liner & piston )  Did I just give a trick away ... think I did 

hahahaha!!........................   David

[Gear_Junkie]

Zack,
Use a liner.
It also bridges the gap between compressed coils some further reducing harmonics.  ( Put Spring Tar between liner & piston )  Did I just give a trick away ... think I did 

Thanks Scott.  It just bugs me that they machined the inside of that piston so poorly.

[Gear_Junkie]

( Put Spring Tar between liner & piston )  Did I just give a trick away ... think I did 

I HAVE THE POWER!!!

[SpiralGroove]

Hey Guys,
We can all agree when it comes to airgun tuning Motorhead is as good as it gets -> super nice guy too   Thanks for that last trick

[Springrrrr]

The inside of the piston on my LGU looked the same as the one shown.  At first, I gently thought it MAY have been an engineering trick to reduce vibration.  Then I added a piston liner and found out it was by no means an engineering anything other than a manufacturing shortcut not to smooth it out.

Quote from: Motorhead on April 05, 2016, 09:56:33 PM

    ( Put Spring Tar between liner & piston )  Did I just give a trick away

YUP