The 53 will quite happily climb to almost 500 fps with my mods and i can repeatedly produce 20mm gps
This evening i just managed a 12 mm group. It takes real practice but its in the gun unlike many other springer pistols.
Thats the key with the 53...Its there...you just need to drag it out.
To help, you need my mods....running one spring P18 or Cometa....run it on Delrin or stainless guide and top hat. Then you want JSB exact or Falcon....
Neatsfoot lube the head....no dieseling after a few clearing shots......then a medium tight Isocoles hold.
Raise the pistol slowly to the bull with the first pressure taken up.....then squeeze just as the sights come up on the base of the bull and the recoil will take that same movement upward in a straightline.
Ive produced tiny groups like this.
The Falcons hit 495 fps with the Exacts running around 465 fps...
Further....forget any comparisons being made with the Lucznik ....The trigger just isnt in the same league and cannot compete once the 53 is set up correctly..
The quality of the grip is greater and gives more control and the quality of the internals and rifling is simply better.