Wolverine New to me .177 Wolverine

[FL22]

Crono data 30 shots ea.




The regulator is set at 155. After about 60 shots the fps starts dropping very slowly 1,2 per shot steadily.

I did turn the hammer up, but the most it would do is 902 fps with the 8.44 with a lot of air. I turned it back down.

Targets



Actually, this will be the first time I will be able to tune an Airgun correctly. My other crono did not work very well and I became frustrated so all my tuning experience has been by listening, when it sounded like it was releasing too much air I would back off the hammer.

Guidance or suggestions would be welcome and appreciated.

 

[FL22]

I gave up after seven on the JSB 8.44 at 50y, looked bad.

 

[Billm]

I gave up after seven on the JSB 8.44 at 50y, looked bad.

The H&N did well.

 

[FL22]

Right or wrong I’ve decided to take this approach, since the H&N Barracuda 8 seem to do so very well with my Wolverine I am going to tune for them.

I read the HAM review on these pellets and will utilize the ballistic information contained in the article.

I am going to turn the power adjuster down to try and get to roughly 872 +\- FPS, if that doesn’t work, I will turn the regulator down to 150 bar and try to adjust the hammer again.

 

[FL22]

More leaking, bottle gauge. I could hear a popping sound coming from it (not to mention the 25 bar pressure loss). Went ahead and replaced the regulator gauge O-ring too.

No popping sound anymore, hopefully no leaks either.

 

[FL22]

Went and adjusted the regulator .

I should have ordered an O-ring kit with the rifle . From now on if one looks remotely suspect it’s getting tossed.



The small piece of O-ring was stuck in the passage to the plenum, completely disassembled and used a patch worm cord to push it out.

reg down 1/4 turn CW now at 148 bar.

it holds pressure.

 

[FL22]

The shots were coming apart, so I turned the regulator up to 152. Things are looking good, my 50y group of 10 improved .

 

[FL22]

30 shot crono data.

 

[Billm]

Well worth the effort that you’ve put into this rifle.

 

[FL22]

Well worth the effort that you’ve put into this rifle.

Yeah, it’s (the rifle) teaching me a thing or two as well .

 

[FL22]

More tuning and O-ring replacements, everything sounds tight. I do not hear any wasted air.
50 shots
ES 14 SD 2
15.2 muzzle energy



@Danman the light kit for the ProCrono is a must have .

 

[Danman]

More tuning and O-ring replacements, everything sounds tight. I do not hear any wasted air.
50 shots
ES 14 SD 2
15.2 muzzle energy

View attachment 16444

@Danman the light kit for the ProCrono is a must have .

Very nice numbers! Now to get it good for the .177 competition
The kit is 120v to the wall right...so just need an extension cord? Last time I went to buy it, it was out of stock here...may have to go Pyramyd.

 

[FL22]

Very nice numbers! Now to get it good for the .177 competition
The kit is 120v to the wall right...so just need an extension cord? Last time I went to buy it, it was out of stock here...may have to go Pyramyd.

Correct on all points . I purchased mine at PA too.