Superior Liner Twist Rates

The Superior Liners set recent performance and innovation benchmarks for FX and the entire airgun industry. Superior Liners are fitted on all production model rifles and barrel kits. These liners are designed to shoot standard weight pellets, lightweight slugs from other manufactures, and Hybrid Slugs with maximum accuracy.

.177 Cal

300mm Length – 1:18
380mm Length – 1:18
500mm Length – 1:18
598mm Length – 1:18

.22 cal

300mm Length – 1:24
380mm Length – 1:24
500mm Length – 1:24
600mm Length – 1:24
700mm Length – 1:24

.25 cal

380mm Length – 1:24
500mm Length – 1:24
600mm Length – 1:24
700mm Length – 1:24

.30 cal

395mm Length – 1:22
500mm Length – 1:22
600mm Length – 1:22
700mm Length – 1:22

.35 cal

800mm Length – 1:25

Superior Heavy Liner Twist Rates

Superior Heavy Liners embodies a different twist rate better suited for heavier ammunition. Sold as a separate accessory and not as a barrel kit.

.22 cal

380mm Length – 1:16
500mm Length – 1:16
600mm Length – 1:16
700mm Length – 1:16

*Required for projectiles heavier than 23 gr.

.25 cal

500mm Length – 1:18
600mm Length – 1:18
700mm Length – 1:18

*Required for projectiles heavier than 34 gr.

.30 cal

500mm Length – 1:18
600mm Length – 1:18
700mm Length – 1:18

*Required for projectiles heavier than 50 gr.