Harmonic tuning the FX Impact - VIDEO

Thats what I like to see 2 shots touching each other consistently 

from one group to another that is when you know your there . 

Wow, that is a results. I am impressed of what airgun can do this days. nice one

After the initial velocity tuning, did you go up or down in reg. pressure and did you adjust your hammer spring pre load? Nice shooting! Have a great weekend Bobo

Stoti

Go bob.thanks for info

You gotta take me a little further down the rabbit hole. When you say valve settings do you mean both the valve depth and the hammer spring or mainly the HS? Also how do you arrive at a starting point? Thanks

Holy Moly ... That's amazing !! 





Rog

I want to get into slugs.. Bob, should make a video on how you tuned your rifle. 

Matt

@DeutschKSK +1

Nice grouping 



Bb

Bob, thanks for more great information on tuning up the FX Impact.

Bob L

Thank you for sharing with us.

Nice shooting and logical well explained tuning advice. One thing I didn’t hear you mention was that harmonic tune was for that specific pellet. If you go to the 34, or 40 like you have shot in other videos you would need to go through that entire process again. Keep on sluggin’!

Thank you for the video bob, much appreciated. Do you think you’ll stick with .22 slugs or ever go up to .25 caliber? 

Matt

Hey bob. I like your videos. Very very helpful. Just watched your tuning video. The only question I have is After you had your max velocity set did you set it down one on your hammer spring wheel and then fine tune with the valve adjuster or did you leave it on max and only adjust the valve adjuster? I just got my impact MKII and I’m in the process of tuning for the VK 24 grain. Thanks. Keep the videos coming

Good stuff brotha. When I read your original post about velocity tuning and then moving on to harmonic tuning and using the regulator afterwards, I thought, that doesn't make sense, if you change your reg. settings it will throw the velocity tune off... but I guess the velocity tune is just a range anyway. To harmonically tune a gun you have to mess with the reg. settings, unless you get lucky with the velocity tune and get super close off the bat, so you can dial it in with just the valve adjustment.

Maybe you should coin your own catch phrase... The Bob O Total Tune. Get your velocity about where you want it with the "velocity tune", move on to the "parabolic tune" to dial in the accuracy and bam, you have the "Bob O Total Tune". I think naming a "velocity tune" and the other a "harmonic tune" is a bit of a misnomer. It's more like the first part and second part of the total tune and you've got it dialed in. One hole at any yardage is awesome.

I do things a little differently, like shooting for accuracy during the velocity tuning process to save time and then I fine tune with the valve adjuster from there. But like you mentioned, I get what I think is acceptable a 40yds and call it good, I've never continued for one hole groups. I also never shoot at 25yds, which is very smart and makes total sense. I'm definitely going to tweak what I'm doing and give this method a shot. It looks like it works! Good stuff Bob, this video will help a lot of people!

When you talked to Matt, did he say anything about using the valve adjuster? I know in some of his videos he says he doesn't use it, he leaves it wide open. I was wondering if he's changed his ways or just gives that advise to make it easy for people to tune their guns.

Thanks again and Happy Father's Day! Really good stuff!

Stoti

Great video bob, thanks for taking the time to do it!