just depends on what you want, I just got my firs new springer and after 2,000 shots or so it has tuned itself as far as smoothing out. But from what I have read you can change springs for different fbs, polish the sears on the trigger, change piston seals, and much more just depends on what you want to do. 

Whatever you do make sure you clean that barrel really good when you get it, 

where did you order it from? 

goodluck great rifle
 
"c_m_shooter"No need for the moderator, the pellets hitting the target will be louder than the gun. Removing the factory "muzzle weight" is too much of a challenge to be worth it.
Agreed, barrel moderators don't work on springers.

Just shoot a few tins through the gun and then assess what, if anything, you'd like to change.

My .177 hw97k is my favorite and gets shot often. I decided to reduce power on mine to about 12fpe. The hw97k is very easy to service yourself and there are many good online tutorials to help when you're ready to open it up.

R
 
rjos3ph -

Please let us know if the moderator helps the HW97 with report. In my experience the HW moderators do help on the HW30. To c_m_shooter's good point, the pellet hitting target will likely be louder, especially at a shorter range. Perhaps you could test into a distant target. A distant target will time-wise separate the report & pellet impact noises making an assessment easier. Thanks.
 
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"parallax"rjos3ph -
Please let us know if the moderator helps the HW97 with report. In my experience the HW moderators do help on the HW30. To c_m_shooter's good point, the pellet hitting target will likely be louder, especially at a shorter range. Perhaps you could test into a distant target. A distant target will time-wise separate the report & pellet impact noises making an assessment easier. Thanks.
I would agree with this especially when shooting indoor in somewhat confined spaces....almost need earplugs without the moderator.
Outdoors it probably not that bad.