Dont think about it ...get 95 or 95K....
Break barrel so much more convenient ...ease of loading and easier to work on...
Of the 2 HW57s ive come across there has been slight suspicsion reg the loading gate alignment not being quite up to the job of a direct barrel fed sporter ....just slight edges in group sizes favouring 99s and 95s to suggest it....but not a great deal in it to be fair....but supposed to be the same gun as the 99 so must be down to this loading feature being my guess ...

Alternatively go for a Diana 34 ....beats all of em for accuracy....latest versions have had big quality control leap after takeover by Steyr ....the Premium a beauty and loving mine