Sadly, my Hatsan .457 Piledriver, only after about 40 to 50 slugs from new decided to go rouge on me. I waited for my new Pard day/night sight to turn up, and set about a zero in session. First 3 or 4 slugs were well down on power, maybe only 30 or 40 ft/lbs. recharged it, and 1st shot BANG, the big valve dump nightmare. Not happy at all!! First 30 or 40 slugs awesome power, then my dream fell apart on me. Cry!! Phoned the shop here in Bulgaria, they said they would take it back and repair the rifle, they said also, it would be shipped back to the importer, OK. Umm well that was about 6 weeks ago, I phoned and said, and so where is my rife, “ OK sir I will get on it, and find out what’s going on, we will call you back ( hoo yea, we will see) as predicted, nothing after about 3 days. So now, I have written Hatsan HQ in Turkey, and also sent text to shop saying if I don’t get my repaired rifle back, or a new one, or a my money back after week or so after Christmas I will go to a Lawyer, and they can deal with them. It’s all so my luck, if it can go wrong, it does!