Date: 25/9/2023 1:30


FX STX Superior Liner, 600mm .25 caliber

Main Product Rating 5.05.0 (2 reviews)
FX STX Superior Liner, 600mm .25 caliber

FX STX Superior, Image 1

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List Price $129.99Save $20.00(15%)

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.22 (5.5mm)
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This FX Superior Smooth Twist X Barrel Liner (Superior STX Barrel Liner) was created using the same innovative exterior-pressed rifling, but using upgraded techniques and tighter tolerances for greater precision. The Superior STX will shoot both pellets and slugs with improved accuracy over the regular STX barrel liners. Shooters will see the greatest accuracy from FX's new .25 caliber Hybrid Slugs using the Superior STX barrel liner. This 600mm version gives a little more velocity than the shorter versions while keeping the length almost 4 inches shorter than the 700mm version. If you're looking for an easy way to upgrade your FX air rifle, get a Superior STX barrel liner and drop it in today.

FX Superior STX Liner, 600mm, .25 caliber

  • Recommended for use with diabolo pellets and .25 cal FX Hybrid Slugs
  • Compatible with FX Crown, Dreamline, and Impact models with 600mm STX barrels
  • 600mm length (23.62")

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Item Code: FX19966S [PY-A-9557]

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Caliber.25 (6.35mm)
Weight0.25 lbs

Average Customer Review

Rating 5.05.0 (2 reviews)
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Rating 5.05.0 5.0

Rating 5.05.0 5.0

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Things I liked:

Great upgrade from the STX barrel. Now I can shoot slugs with no problem. This one loves NSA 26.8's so far at 950fps out of my Dreamline Lite in .25cal. 1/2 inch accuracy at 50, which was better than the FX version. Next would be JSB knockouts 33.49 where almost 1/2 inch at 50. more like 3/4 inch groups. It shoot all pellets as well as the old barrel except Baracudas where not as accurate as the pellet liner A.

Things I would have changed:


What others should know:

Every superior liners shoots differently. My 700mm 25cal standard liner does not like 26.8 NSA's but shoots the FX slugs dead on at 950fps. It also has 1 hole accuracy with JSB knockouts at 950fps out of my Maverick. So every liner, ever at the same speed doesn't alway like the same slugs. Both shoot pellets extremely well. So unless you are going heavier than 34 grain in slugs, there should be no reason to get the Heavy liner.

Rating 5.05.0 5.0

Rating 5.05.0 5.0

Things I liked:

Very accurate with any slug, but slug on slug with this on my 600 mm crown and FX Hybrid slugs.

Things I would have changed:

nothing, just come out with the .22, 30 and 35 barrels real soon in 700mm and 800mm barrels.

What others should know:

You will go thru a 100 piece box real fast with the new slugs.

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