FX Is indexing your liner in the FX important?

[Headshots]

My rainbow was not as consistent as yours. My highest was more on the left. I also torque down the jam nut to the same every time. That also makes a difference.

There's a 2 shot group , at the bottom 7 o'clock , and around 10 and 11 o'clock. When it did 5 shots at 12 o'clock position I stopped . Then zeroed the scope . I did loose my black line and will scribe a small line for future reference . But there are many variables and I just do my best. I shot 2 shots then adjusted trying to use the same torque each time.

I tuned the mav some while indexing. Check the last 6 shots.

 

[Revoman]

I normally use a small plastic plug in the muzzle end of the liner with a mark that matches the mark that I put on the liner. It's white in color, so its easily seen when tightening to make sure if it moves with the 'tensioner'. DON"T forget to REMOVE it before firing!!

 

[trlrman]

Yes sir golf tee for me !!

I normally use a small plastic plug in the muzzle end of the liner with a mark that matches the mark that I put on the liner. It's white in color, so its easily seen when tightening to make sure if it moves with the 'tensioner'. DON"T forget to REMOVE it before firing!!

 

[Firewalker]

I mark the liner, barrel and shroud.

 

[john8]

I don't do FX. But I do file index markings on barrel and receiver to align after cleaning. It cuts rezeroing typically to a couple of shots.

 

[triggertreat]

Maybe I should give indexing a try on my MKII. I have never tried this. I'm not sure if I could hold the Impact more steady to see a difference though.

 

[Revoman]

triggertreat​

Nice groups. Perhaps you lucked out and it came from the factory indexed in the right spot.

Mike

 

[Centercut]

I've noticed when using the CF tube over your liner, the indexing doesn't do much... When using just the factory o-ring, it did make a difference and was beneficial. For the CF tube I'm not sure the juice is worth the squeeze...

 

[LDP]

I've noticed when using the CF tube over your liner, the indexing doesn't do much... When using just the factory o-ring, it did make a difference and was beneficial. For the CF tube I'm not sure the juice is worth the squeeze...

The cf tube may not give better overall results but I would think it gives better long term consistency. Once the orings begin to degrade or if the liner is placing more tension to one side they will eventually take a set on that side. Once those things happen I would think you would start to see some inconsistency in the groups or poi.