I don't like to speak poorly of any particular models/brands, but from my experience those break barrels seem 50/50 on quality. I've had a few experiences with them and they seem to shoot too hot for their own good. Try a heavier pellet and that might help (you are perhaps going too fast on the velocity). If you are looking for a quality adult springer, look at the Hw95, Tx200, hw77, hw30 etc for precision and heirloom quality. I know that recommendations for something better isn't great when you want a solution for what you have, so that is why I said try heavier pellets first. Make sure they are match grade too. A good Springer like the models referenced above can shoot a walnut reliably at 50y.
PS: Crosman has some of the finest customer support in the industry, so you should get this resolved if you truly want it to be. They do have some great rifles on the PCP side of things like the Mrod/Prod, Craftsman series, and the Bulldog, but their springers are just not that great in comparison. I have had some good friends that love their Trails and swear by them. I've had friends that swear at their Trails too. I suppose a bit of both with that one?
-Atlas