Thanks Lads
Only had an hour in the shop tonight so I decided to make the shoot ,were hopefully molten iron will flow from .
So I grabbed an off cut of 100mm box .
Set it at an angle I was happy with and marked both sides with chalk .
A couple of minutes with an angle grinder .
so I now had a shoot shape .
I decided to bend out the sides using a 2ft adjustable.
Once I was happy with the angle , mark one eye ball .
I needed to bend the other side the same , the original measurement between the walls was 90mm
I had bent the first side out 20 mm
so all i had too do was bend the other out until the gap was 130mm
then both would be bent equal , well close enough for this job.
the bit scrap that was cut from the box previous was re welded in at the front for the shoot to form a lip.
The shoot was then welded to the drop bottom .
would have took me 40 minutes if I did not stop to take photos
Cheers Rob