I'm new to springers and have a question about my new rifle

I just got a new airgun (Hatsan edge spring piston .22 caliber) and I'm wondering if I need to return it or just buy new breach seals. After unboxing the rifle and inspecting it to the best of my limited ability I started to shoot it. After about 10 normal shots of the rifle, an extremely loud sound came from the breach of the gun, causing ringing in my left ear for about 3 minutes. After that shot, I took it inside to look at it. I might have looked something over, but I figured it was just oils from the manufacturing process burning off. I waited a bit and decided to shoot it again, with a pillow over the breach (I didn't want to bother the neighbors). after a few shots, I tried firing the gun without the pillow, holding the rifle a good distance from my ear. It produced another incredibly loud sound. I think that the breach seal and the breach may be damaged. ( pictures below) 

I know that the seal is damaged badly because of the strands of rubber that are sticking out of it. My question is whether or not the breach itself is damaged as well. 





Thanks.

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That Breech seal Doesn’t look that bad to me. I have a Hatsan 95, and It dieseled Real bad for quite a few shots.It took at least 20 to 30 shots for mine to quiet down. They overlubed The compression chamber. Not saying that is the issue with yours but just a thought.Your first picture is hard to tell but the second picture seems to look OK to me.There are other guys on here that or more experienced than I am on break barrels and can maybe Give you their opinion or help.I don’t like my Hatsan Break barrel. It was actually my third break barrel and was about to give up on break barrels. But then decided to give them one more try. I did some research and found out for the price, you can’t beat the Weirauch Air rifles. I Bought The HW 50 and love it. Fit and finish is way better than the Hatsan.It shoots smoothly and has a great Trigger And is accurate. I’m just saying that because if I was in your shoes I would send it back And buy a German made one.I bought mine at Pyramid air for $300 and was a refurbished one but didn’t look like it. It looked brand new when I got it and shot like brand new.
 
Stupid question but do you think it’s the pellet breaking the sound barrier or does it sound like a metallic whack? If you want to tear it down it’s not hard to see if it’s over lubed. Often times new guns will break the sound barrier and produce a crack. If it’s a metal on metal sound you might want to return it or at least take it down to inspect the internals. 
 
Pretty much what @ripper said. They probably packed it with grease and will take a few shots to settle it down. Also, barrels need to be cleaned really well. If it was a gun I was gonna keep, I would take it apart and clean the internals as well. Knowing what I know & if an option, I would return it and get an HW__ (fill in the blank) depending on what you want the gun for. HW30 is a very accurate and easy to shoot. Good for smaller pests. HW95 is a great hunting accurate platform. HW97 very accurate and can target as well as hunt, albeit a bit heavy. Good luck. 
 
From owning 20+ Hatsans, Edge rifles among them, it's dieseling. Hatsan is notorious for either over lubing or under lubing their rifles. You didn't say what weight or brand pellets you're using, but you can minimize it by shooting heavier weight pellets while you break it in. You might also get a clean rag and stand the rifle up barrel down in a corner and see if some of the excess will drain out on it's own. I say that because while I have no idea what they actually use, I've had more than a few apart and whatever they are using is some kind of slimy black goo. All of mine after a couple 100 pellets have settled in nicely. While they aren't standout target rifles, they are plenty good for pest removal, you'll just need a better scope than the one it came with which from personal experience and reading others, won't last long.

Breech seal looks fine although your first pic shows you took it out. As long as you didn't damage it any taking it out, re-install it and your barrel, if you haven't already will need to be cleaned. Depending on how long you've had it, I'd say shoot the daylights out of it for a week or 2 and see what happens and then should you choose to, you'll still have plenty of time in the 30 day return period to send it back. You might also get a phillips head screw driver and snug up the stock screws...2 on either side in the front, third one behind the trigger and there's a hole in the trigger guard for the screw driver. Springers are notorious for loosening stock screws.

Should you choose not to mess with any of it, just call (the better option) or email them, explain the problem and ask them to email you an RMA tag you can print to ship it back.
 
 I don’t know if you can find those at a hardware store. I personally have never had to replace one but have seen videos and they weren’t a round Oring. They had a little bit of length to them. They were flat on one side also.But I’m sure different makers use different types of breach seals.I have Seen them on eBay really cheap in Price.If yours looks just like a regular O-ring then you would be able to find one at a hardware store then. Just measure it and go check.But there’s nothing wrong with trying to get it straightened out. If it is still got a warranty from where you bought it, I would do like what is already mentioned and shoot the hell out of it for a While and see if it settles down. Mine had that thick gooey junk in it like was already mentioned. And it smoked like crazy after shooting. Some of them take quite a few shots to settle down. But mine took about 30 to just settle down just a little bit but still dieseled for quite a while. And I don’t know if yours came with the scope but they are pretty junky. So I have to agree with everything everybody else has been saying. 
 
The seal was sticking out of the breach when I opened the rifle after the dieseled shot. It looks damaged and has little pieces tearing off of it. I am planning on buying a new seal. I see the 5 piece kit on the hatsan store and was wondering if I could find breach seals that would work at a hardware store or elsewhere in person. 




If you're willing, PM me your home addy and I'll stick a couple in the mail. I still have Hatsans among more than several other brand rifles and keep both breech and piston seals for most of them in the tool box just in case. 

You can still run to that hardware store if you want because another recommendation will be a couple of 5mm flat washers for those front stock screws. The star washers they use will chew up your stock over time so insert one between the star washer and stock on each side, then tighten them back down. 
 
The seal was sticking out of the breach when I opened the rifle after the dieseled shot. It looks damaged and has little pieces tearing off of it. I am planning on buying a new seal. I see the 5 piece kit on the hatsan store and was wondering if I could find breach seals that would work at a hardware store or elsewhere in person. 




If you feel like you should replace the breach seal, I'm not gonna say you shouldn't. However, if it failed BECAUSE the rifle is dieseling, which it shouldn't, but if it did and you replace the breach seal. You run the risk of damaging the new one before the rifle settles down and stops dieseling. My recommendation would be to get the new seal, but wait to install it, until velocities have leveled off. What were you getting for velocities when you shot it? Can't speak to Hatsan or HW as I have limited airgun experience, but my Benjamin trail took almost 2 full boxes of pellets before velocities became what I would consider consistent. If I accidently get too much oil around the piston when I oil it, it takes about 50 shots to blow all that out and settle down again.
 
Another possibility (in addition to the dieseling, not instead of) is that you may not have had the barrel fully locked in place after cocking it. I had this happen to me with a Hatsan once. When I pulled the trigger, boom! I looked and the barrel had opened up and the breach seal was about 3/4 the way out of the groove. I looked everything over carefully and put the breach seal back in. I then loaded the rifle again, this time triple checking that I had fully closed the barrel, then carefully took a shot and everything was normal. My Hatsan was relatively new at the time and I was in the process of breaking it in and getting rid of the excess lube. 

What happened could have been a combination of the dieseling and the barrel not being fully locked in place.

Is that a small burr at the 8 o'clock position on the breach or is that just some gunk?
 
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A few of my Magnums 



Hatsans are good guns. Own 13 of them. They are sometimes loud until you shoot them awhile. Make sure your breach block locks. They are almost always stiff. I have only had two that had problems. One I sent back and Hatsan replaced it. The other a Speedfire I gave to a friend only because I hate cheesy plastic shrouded barrels. 

Early Hatsans in the USA had some problems probably where they received there bad rap. But they make a good product as of late. 

There Magnums are super for hunting and are my guns of choice for this. With a way to adjust the bar pressure in your rams for some extra punch.

I also like the options of the caliber selection from .177 thu .30 in many of their models. 

They test their guns with lead pellets and they are always very close and sometimes over the stated fps in the specs. 

They also have pretty dam nice triggers if your willing to adjust them. The right way.

My tuned Hatsan's are awesome. But I love all my guns they are all so different. From my cheap Wally World ones to the others. 

My rant is over😁