Artemis PP700S-A (Found my suburban backyard carbine)

I did some hammer spring adjustment today. 600FPS/12FPE is all I need for my yard and it gained me a bunch of shots on a fill. The bark also went down.

I did the stats for the first 47 shots since it took a dive after that. I'll still play around with it.

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Had it taken apart several times messing with the stock reg. Didn’t work out as planned, worked on getting back where is was. Almost there, just some fine tuning. Still thinking about putting in a huma. 
After I got back to close to where is started I shot 5 shot groups. I adjusted the scope between the first 3 groups. Shot off a front bag, stock shouldered. 16 grain Air Arms.
18 yards to match with rodent kill zones in my yard.
Still shooting around 600 FPS. I will post LabRadar data in the morning 

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So my internal reg became very inconsistent. This thing was very accurate and it began opening up. I tried cleaning and that didn't help. I recorded with labradar and found my fps jumping around. I did some forum reading. I love this platform. I don't have the issue others have investing money into an affordable rifle. I have a Huma and an Altaros coming. One will go in my 22 and one in the 25 cal on the way.

This is for my 22 that shoots AA 16 gr. For my use I like this PCP around 600 fps. It's used for rodent control. I have two kill zones set up at 18 yards.
I only take brain shots. With it unregulated the first 10 shots group well, then the group moved up as the FPS increases. This shift is around 1/2" or a little less.

Where I am at now is I put all the washers in the same direction.

I tried filling to 160 bar, but 150 looked a better starting point from shooting 5 shot groups from the fill point down to 100bar. And feel and sound. I couldn't use labradar for this portion.

So today I started by shooting some strings from 150 bar. The peak velocity around shot 20 is 110 bar.

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