All spring guns need a once over inspection internally. Doesn't matter where it's made. Just IMHO
Mafatone,Most of the problem with the 135 is due to my tinkering. Since I cut the nasty plastic sight off (along with 3" of barrel) Hatsan would never take it back, this voids the warranty. The 135 shot well enough before "THE CUT" for me to know it's not the barrel. Just spent about 1/2 hour lapping the crown using a brass screw, some polishing compound and my drill, and Shaazaammmm........ she's shooting reasonable groups again! I had turned the barrel on my lathe a put a 11 degree crown so it would fit my new muzzle brake. Unfortunately, my (crappy) crown work left a deep burr in the barrel misdirecting the pellet.I recently bought a HPA muzzle brake that screws on; it looks fantastic! I think I will fabricate more of these things on my lathe for my other guns if I choose to cut off the ugly plastic muzzle brake/sight. Bye the way, I'm not very fond of the Hatsan open sights. They are too bulky to be effective IMHO.My big complaint with my 135 is that is just "too much" of everything (the Bazooka is a perfect description). If I hunted and needed that kind of "knock down power" the other flaws would be perfectly acceptable. The 135 is just a lot more of a PITA vs. the model 95 IMHO.
I have a Hatsan 135 in .22 and love it. It consistently shoots 1000+ FPS with H&N FTT 5.55 head pellets. I use open sites and shoot a 0.4" taget at 13 yards and always hit the target. This rifle is not for indoor home shooting with it's 30+ FPE power. This beast is ment for hunting or a real indoor/outdoor range. It feels and shoots like a bazooka. I wouldn't dream of putting a scope on this thing as it's going to eat them up and render them useless unless you buy a real expensive one. I can't see spending $400 on a scope to put on a $220 rifle. Just my opinion. Anyway, for the money, this is one of the better deals out there for quality & price. I'm glad I made the purchase. I felt mine didn't need a tune out of the box.