Another twist on a ball ... backspin ?

[Motorhead]

I know, old idea ... but what the hey, gotta try :p
http://img167.imageshack.us/img167/5540/pbg011tr8.th.jpg (http://img167.imageshack.us/my.php?image=pbg011tr8.jpg)

http://img460.imageshack.us/img460/9569/pbg012ac4.th.jpg (http://img460.imageshack.us/my.php?image=pbg012ac4.jpg)

It does backspin a ball in a loose barrel pretty consistently :cool: But with a tighter correct barrel fit any spin is stopped and ball fly's normally :(

[Hob Hayward]

How did you make the bolt itself?

[Motorhead]

Bolt was made in typical fashion on a lathe, then the cupped end with outlet was added to end of bolt as an insert and simply glued in using some Flex CA glue.

[Hob Hayward]

Haha, nice, should work though, let us know how it goes!