Thoughts on the krawl puncher breaker?

Got my .177 mk2 (first pcp) in the mail a few days ago ordered from pistolasycarabinas, knowing that the .177 barrels = Lottery with the Kral's. (Was prepared for a LW barrel swap).

Came with one broken magazine instead of two functional ones, single shot tray and some umbrako wrenches & o rings.

Immediately took barrel off and pushed cleaning rod with nylon brush through from the chamber end, used wd40 as solvant (yeah i know, all of that is a nono blabla = dont care), then put the A-Tec suppressor and Primary Arms 4-14x44 R-Grid (R-Grid reticle) over from my CZ 452 .22lr.

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Found it had 100 bar on the reservoir so I carefully started breaking in the barrel using cheap Gamo match pellets at about 25 meters, heres a grouping with bad pellets, bad rest and bad shooter: 

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Goes without saying but that flier on the right > on me.

After about 40 shots i started filling it up with the Yong Heng:

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And found that the rifle leaks air from around the front end of the reservoir, the leak nearly stops at 100 bar then starts creeping down from there, over a few days its likely empty.. fancy that :)

At any rate, shot some JSB Beasts through it at 35 meters and got an even better grouping, will be fixing that airleak and explore this gun more.

As far as yes or no: If you want a perfect gun right outta the box and wanna shoot slugs at a miles distance > Reality check.

If you know how to use your hands and know what you are getting for the price and the goal is plinker/hunting within 100 meters= Go for it.