HATSAN AT44-10 Tuning?

[bhaskell]

So I purchased and received my .22 AT44 Long. This is my first PCP gun and so far I am very impressed with the entire rifle. It was a toss up between the .22 and the .25. In the end I opted for the .22 since I could limit my pellet collection. I also opted for the side cocking lever over the pump action, this was more of a personal preference.

This being a Turkish rifle, it seems to have a big following everywhere except here in the USA. Does anyone have a good tuning guide for this rifle? What about local suppliers for springs and other parts? I haven't shot this through my chrony yet, but I'm sure its hitting very close to the advertised fps.

So after a few shots, I realized that others accounts of this rifle being loud were not an exaggeration! This this was just as loud as my rim fire rifle. I took a chance and ordered a silencer from Wolf Airguns. I didn't realize until after the purchase that Wolf is in Poland. Three weeks later my silencer arrived and boy oh boy, what a huge difference this thing made. The only sound heard now is the hammer!

One question, when I fill this rifle through the forward fill port, it seems to be leaking a lot of air while filling? Is this common? Its just a push in type fill adapter, not threaded, so there isn't really a tight seal. Maybe I'm not opening up the scuba tank enough to push the fill valve open?

Cheers,
Bryan

[ezman604]

Are both of the O-rings present on the fill probe? They may need to be replaced.

[BrewCityMusic]

I second that opinion, I've had an O-ring mess up on the probe for my BT and the first time I went to fill with it, wow it scared the bejeezus out of me, LOL ... The gun should have come with a small bag of O-rings, there are a couple of probe rings in there, make sure to apply a little silicon lube to them from time to time also (and NEVER use any other lubricant, silicon is non-flammable and anything with petroleum, etc can trigger explosion, even in the minute amounts used on O-rings) ...

Do a little searching here and You'll find some good tuning tips as well as a pretty great thread by Bob (Rsterne) on installing a "sail" and filling the unnecessary valve ports in order to dramatically increase shot count and efficiency.

Do me a favor if You could, I'm considering an LDC for my BT65 and I would love to see a pic of the Wolf on your gun (just to get an idea of appearance, size, etc) - Thanks!

[bhaskell]

Here is a pic of the rifle with the wolf LDC. I plan on removing the front sight. The LDC is light weight and was $66 shipped. Not too bad.

[BrewCityMusic]

Thanks for the pic, that's a sweet look - unfortunately, I dug into it a bit more and the High-efficiency Wolf LDC/Stripper would make my already monsterous BT65 about 3" too long for my gun cabinet ... Looks like I'm going to have to go with a TKO custom or ? if I want to quiet her down ...