Index an Airgun barrel ?? Really

[alejo]

I just saw this video on regards to indexing your barrel is this true? Do we really need it I’m really confused, can someone explain it please thanks.

 

[DonC]

I once indexed a barrel 180 degrees. I clipped the moderator with every shot after. I then tested ALL "CLOCK FACE" positions and found the best 12:00 and 6;00 vertical groups. I marked the barrel/receiver position with white paint for the future. IMO, indexing is only beneficial for eliminating windage crossover. 

 

[alejo]

Is this for each rifle regardless the brand ?

 

[Macros]

Nope.

If your transfer port is fixed (machined into the barrel) like it is in many rifles you can't index without some major modifications.

STX liners within the outer barrel sleeve, Weihrauch hw100 barrels, and RAW barrels with thimbles are some you can index. Probably a fair few more I'm not remembering 

 

[cea1960]

Nope.

If your transfer port is fixed (machined into the barrel) like it is in many rifles you can't index without some major modifications.

STX liners within the outer barrel sleeve, Weihrauch hw100 barrels, and RAW barrels with thimbles are some you can index. Probably a fair few more I'm not remembering 



I was cleaning my HW100 BP-K the other day and the barrel twisted on me. Is this normal or did something loosen up? Should I test shoot it to see if the poi has changed, and if so, should I "index" it to find the most accurate position?

 

[alejo]

WOW!!!!! There’s an other thing that we have to worry about beside of a good rifle, scope and best pallets, very interesting. Do as anyone index a FX MKII YET? 

 

[nervoustrig]

Some good info here: https://www.airgunnation.com/topic/barrel-indexing/

 

[Yo]

Nope.

If your transfer port is fixed (machined into the barrel) like it is in many rifles you can't index without some major modifications.

STX liners within the outer barrel sleeve, Weihrauch hw100 barrels, and RAW barrels with thimbles are some you can index. Probably a fair few more I'm not remembering 



I was cleaning my HW100 BP-K the other day and the barrel twisted on me. Is this normal or did something loosen up? Should I test shoot it to see if the poi has changed, and if so, should I "index" it to find the most accurate position?

That's normal my brand new BPK barrel was loose when I got it just unscrew the tube and tighten the set screw doesnt matter index position for that gun.

 

[Long_Gun_Dallas]

FX guns can be pretty sensitive to index. The liners used are pretty dang thin, and in my experience dont tend to be the straightest things. Nothing wrong with that. Actually would be expected. Just best if you can the gun shooting a vertical spread that way you dont get drift at longer ranges.

 

[elh0102]

I was cleaning my HW100 BP-K the other day and the barrel twisted on me. Is this normal or did something loosen up? Should I test shoot it to see if the poi has changed, and if so, should I "index" it to find the most accurate position?

Just snug up the bottom attaching screw. I'm sure some would argue that the Weihrauch system of using a single grub screw to attach the barrel is not the best. May be, but I've never had a problem with mine. But I am sensitive to putting a lot of torque on the barrel. When I was removing the glued-on factory moderator, I removed the barrel and held it in a vice. And when reattaching the moderator, I never use more than light hand tight fit. You can certainly play with indexing it, but I think you will find it a waste of time.