+700 Yards shoting with .22 Slugs 

I didn't measure muzzle velocity at this shoting, but in general with this rifle and slugs I stick to under 1 fps SD for 25 shots strings.

Muzzle velocity: 303 m/s - 994 fps, used barrel with 1:9 twist.

ATP King slugs can be operated in a barrel with a twist from 1:18 to 1:9, they work the same in Lothar Walhter (twist 1:17.7) as well as in FX Superiory heavy with twist 1:16. This barrel was a 1:9 twist. The reason for using it was not because of the barrel, but because I have this M24 with this barrel adjusted to a higher muzzle velocity of 303 m/s.

@@AirgunRegulator nice to know...Big thanks

@@AirgunRegulator i will buy some and try it in an fx heavy sugliner

@@ztejerzkztktzfrkt8527In the FX heavy liner barrel they work very well, it is advisable to choose a diameter of 5.52mm. Here is the testing of one of our customers from Estonia: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ShYQlDxDyjs.html

@@AirgunRegulator thanks a Lot. Regards

Altaros M24 with custom heavy barrel.

@@AirgunRegulator sorry please provide information what do you mean custom heavy barrel

@@solidname7839 that this is a non-series M24 barrel that has a 1:9 twist and that it is a 25mm thick barrel (solid steel)

@@AirgunRegulator thx for the info is it a LW barrel how does the lower twist perform at higher speeds?