Testing Slugs with FX Impact - PELLET & SLUG different liners and Barrels

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Would someone know the spec's of the new ( Gen 2) FX 700 mm slug barrel:

I gather its a 1:16 twist, 700 mm LG, is it traditional Land/Groove, Polygonal, smooth twist or smooth twist X barrel.

Knowing the Land / Groove dimensions (eg. .217/.214) would be great.



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Just fx, according to Matt D. That is confidential
 
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Forgot to mention, jsb 0.22 beast 34 gn out of the slug liner best group

1555850443_10312377925cbc64cb55a829.44817628_SmartSelect_20190421-083905_Gallery.jpg

 
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Would someone know the spec's of the new ( Gen 2) FX 700 mm slug barrel:

I gather its a 1:16 twist, 700 mm LG, is it traditional Land/Groove, Polygonal, smooth twist or smooth twist X barrel.

Knowing the Land / Groove dimensions (eg. .217/.214) would be great
Click to expand...

The FX chart says it's 1:15 twist https://www.airgunnation.com/topic/official-fx-stx-barrel-liner-twist-rates/

Rifling is rolled into the tube from the outside just like the STX barrel but the choke is different.

Matt Dubber says it never needs cleaning.

Here is a video explaining slug liners. It's long but you should watch the whole video.

https://youtu.be/TLK5j2urOJ0
 
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