Indeed it does.
Every company has the occasional or even regular crappy examples of their products.
Some products are poorly designed and no matter how much attention to assembly the workforce apply it still doesn't make it a good product.
I have tuned many BSA's, and many Gamo's both Brummie and Spanish assembled examples.
The fact remains that the Ultra SE is not a Gamo Phox even though it may have the same gauge on it and use the same magazine and fill probe.
Take a good close look. The air tube is different, the firing valve assembly is different, the hammer assembly is different, the breech block is different, the trigger... Oh! the stock stud is the same!
Does that make it a cheap Ultra SE?
No, it makes it a Gamo (made in Brum) Phox or Coyote or whatever other Gamo they are assembling in Brum this week...
In case you didn't know BSA have been owned by Gamo for many years. BSA build what Gamo tell them to build.