Turkish slugs

[rkr]

https://hardairmagazine.com/news/turkish-slug-manufacturer-announces-new-range/

That boat tail looks very interesting, I wonder what twist rate it would need...

[ballisticboy]

To me, the boat tail angle looks too big and the boat tail too long.

If the angle is too big, the air will not see the boat tail and it will do little except add weight. The projectile can still be used in this case, but the drag will be higher than expected.

If the air does manage to follow the tail, it could be difficult to find a suitable twist rate for dynamic and gyroscopic stability.

[rkr]

Ok, at a glance it looked like a .25 version of the 257420BT. That works with 14" twist so standard 18" twist airgun barrel probably won't do.