0.625 cal
These kind of darts are excellent for hunting. The broadhead and the
slim shaft do penetrate very well. During test with
2m Blowgun the dart did penetrate an 11mm heavy duty double
enforced rubber belt.
(used in mining industry for transportation of the mined material)
The penetration capability is multiple more than any skin of small
game can stand. see also
test photo
See photo of fishing broadheads here.
For shaft use 2mm spring steel wire 120 mm long. The spring steel wire
you can find at hobby model craft shops:
- for larger ship models spring steel wire is sometimes used as antenna
- for smaller ship models 2 mm spring steel wire is used as axle for
the propeller
For cuting the spring steel wire use Dremel 545 diamond cutting wheel.
I can highly recommend this tool. It is really worth the $$. It cuts the
spring steel like butter. During test it did cut a half inch long slit
into the spring steel wire within aprox one minute. Without producing much
heat!
The Shape of the tip: