Hatsan AT44-10 Tact final thoughts.........

[Bwalton]

Well as you all know I have been at this gun for a while trying to find the best tune for it. It is the Hatsan AT44-10 Tact .22 rated @ 970fps, So it is the short version and not the long that is rated @ 1070fps. I paid $525 from P.A out the box she was a great accurate gun.  Till this day I have not had one problem! I have put over 5000 pellets thru her and she still hits the same spot each and every time.  Some things that I did change.....
1, TKO Break
2, Bob's Mod 2 hole blocked with set- screw and tune with Chrono using hammer spring tension.
3, I also added tighter o-rings to the clip so that each pellet will seat the same for non- fliers....
4, re-crown 11deg
Cost- .50 for the set-screw and $85 for the TKO break
Results:

while tuning its important to find the right fill pressure, so it takes time, but well worth it in the field.
 I tried three pressures:
1, from a full 200bar......using JSB 18.13gr
866
869
880
880
885
890
894
898
899
899
895
903
896
892
890
886
885
881
876
872
Hi-903
Lo-866
ES-37
32.25ftlb

So not I wanted to get the ES down and just fill up to where I have  great accuracy and power along with a nice ES
and here are the results:
2750psi
189.6Bar

885
886
885
896
890
891
891
891
890
888
Hi-896
Lo-885
AVG-889.3
ES-11
31.84ftlb
CTC 10 shot group- .282

So this is what I hunt with in .22, very accurate @ 108yards, and shooting GS @ 77yards is a breeze!
Total cost $610.50
So you gat a lot of gun for the price, in my dealings trouble free..... They say that the Pnuma is the same gun, I have one and its not the same as the AT44-10 Hatsans while the air tube will fit...its not the same tube, Hatsan is made way better, the barrels are not the same . the breech is not the same....the Hatsan AT44-10 is a whole different gun then the Pnuma's by far!  So you can not judge a Hatsan in this re guard.... which some do and it is the farthest from the truth!

[Railbuggy]

I had never heard the name Hatsan before I started looking at PCP guns about a month ago. I bought a Disco as my first but Hatsan is on my buy list.

I have heard that Hatsan may stop making the AT44 series. I hope not.

[Bwalton]

They are fairly new over here in  the states...but are a fine rifle.

[c2k5]

What size o-rings did you put on the mag, and did they actually help?

[Bwalton]

What size o-rings did you put on the mag, and did they actually help?

Yes they did help, if you notice when loading your mag, if you shake it you can feel some pellets fit right and some loose. I just used the same size thickness and a few sizes small where I had to really stretch them to put them on.