DIFFERENT GUN ??

So, why the "need" for the "nitro-piston" for your desired ( or any ) use?

Just checked and if you shop around you can get a metal springer powered RWS 34 for $178+ .
The 34 is an industry standard, will perform and last many many years. Good for clean brain shots at 40-50 yards and the T-06 trigger could be aclled match grade.

If you just must have a gas ram swhich to the used market and your pretty much in the ball park $$$ with the rigs mentioned high QC older original gas ram rifle which are well under valued and appreciated in todays must have the newest model period mindset, which is fine but pass up excellent opportunities.

Why ram?

John