What Liners do I have?

I'm confused as to what liners I have.

Can anyone please shed some light on the liner differences?

I bought a .30 barrel kit for my FX Impact MK1.
The original configuration was .25 smooth twist barrel.

What liner comes with the .30 barrel kit?
(Smooth twist x?)

I also bought a standard superior liner in .30 and installed a carbon fiber sleeve. The superiot liner did not have any etching or laser markings like in the pic attached.

The pic is from a .35 liner and only attached as an example. The side by side liner pictures has the kit liner and the superior liner.

What superior liner do I have?
(Pellet/slug)

The plastic sleeve says superior .30 cal 600mm

For what it is worth, both shoot the jsb hades very well at 880 fps.

Any help is appreciated.
Thank you.



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I believe a superior ...
Thank you for your reply.

The one on the right is a superior liner as the store plastic sleeve packaging has it labeled.

Is it a superior slug or superior pellet liner?
Is there a difference?

The liner doesn't have etching/stamping/laser engraving.



The one on the left is part of a barrel kit.
Is this a smooth twist x liner?