Hatsan Galatian IV .177 - Question

[Serenity]

Hi all !
I just received my Galatian today and it is a really well made gun judging by first impressions.
This is my first PCP rifle so im not to familiar with the internals, but i have a gun smith friend for any tuning needs.
I bought my rifle from Usa (airgun depot) and imported it to Norway.



Unfortunately i think i might have an fps issue with mine.. I cant be sure since i haven`t run it over a chrono yet.
Long story short i was sighting in my scope, so me and a friend was shooting at a plank from about 50 meters. (54.6yds)
My friend uses a Marauder .177 and i shot the Galatian. We used the same ammo, H&N Barracudas 10.34 gr.
Both rifles where filled to 200 bar so they should perform similar. The Galatian is on paper the more powerful one with 27 ft\lbs while the marauder has 22 ft\lbs.
But on inspection of the plank.. The marauder had torn it to shreds with pellets penetrating it fully and taking big pieces of wood with it.
Me on the other hand had 2 out of 20 shots completely penetrating and the rest was inside the plank.. This leads me to believe that there might be an fps issue..
But i find it weird since the gun is brand new. Any thoughts ? Will test on chrono as soon as i have the chance. 

Hopefully there is a logical explanation or an easy fix so i wont have to ship the gun back to the US for service :p
took me 20 days from i ordered uintill it arrived.. dont want to wait that long or possibly longer :p