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Discussion Starter #2
Pistol is a shorter Kurtz barrel version with re-designed internals for much greater performance compared to stock. Pistol groups hole on hole at 6 yards, 1/2” gps at 10 yds and sub 1 inch at 15 yds ...It exceeds 515 fps with an 8 grain pellet and virtually free from recoil apart from a slight nudge ...
If anyone is interested in the mods hit my post ...
 

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Very interested in your mods please.

I have just bought a S/H LP53 with serial number of 109981. It is in virtually mint condition with box and all accessories. I am quite excited about this but the recoil is not comfortable in my old hands (I am 83!).
Thanks a lot for your help.
Kind regards,
Eric Wood.
 

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Discussion Starter #4
LP53

The 53 in stock spec can be a bit like a cricket bat going off in your hand but it can be converted into the most fantastic shooter with the right mods...
Going to one single spring of sufficient high quality and correctly guiding it with a new delrin guide/ top hat can see remarkable improvements and zero vibration.
A new poly seal and transfer port reduction are other mods which will see it out perform almost all springer pistols with the possible exception of the FWB 65..
 

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Very interested in your mods please.

Hi Steve,
Thanks for reply. Are these parts available in UK please, and do you know of a source please? Regards, Eric.
 

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Discussion Starter #6
Tuning Parts

I can supply the spring, guide and top hat as a modular kit which just drops in..
Tony Leach can sort your seal or i can sort you a Teflon seal head unit which is not as good as Tonys Poly seal ...
So i would recommend my drop in kit and Tonys seal..
Pm me for details
 

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Please explain how the forward recoil can be suppressed and the laws of physics be defied. The recoil from spring operated airguns is not because of seals and springs alone, it is the effect of the spring driving the piston forward and the corresponding inertia.

While the FWB 65, 80, 150 and 300 also have springs that operate this way, the systems are on a kind of slide that lessen the impact from that movement. FWIW, the LP53 was designed in post-war Germany to have a training pistol for centerfire handgunners that would mimic the recoil of their CF pistols. It is good to know that there is a replacement for the leather seal available, though.
 

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Discussion Starter #8 (Edited)
You cannot defy the laws of phyiscs but you can massively improve on how badly a design handles that law...
Basically the LP53 using a twin mainspring spring set up had possibly the worst guide rod of its larger spring ever fitted...Both vibrate on each other and twang..
Using a single high performance mainspring with nice Delrin guide and top hat we have the equivalent of what VMach does for air rifles...Then a latest design parachute seal and transfer port reduction reduces the slam by approx 50 percent...Taken together its a total transformation. Consistency also massively improves to 2 fps variation...
With correct pellet choice i have routinely outshot guns using sledge or opposing spring systems but using the 53 with a sporting 2 hand hold which cannot be easily done with target grips...
Its not just about spring movement/inertia but balancing compression ratio, removing piston bounce and allowing full use the air cushion against the pellet and the slam of the piston..
Finally, one huge difference that you have missed with your phyisics...the key to the transformation when i first carried out this work many years ago..
Have a think what it might be ...ill give you a clue...i have not mentioned it above..
 
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