thanks - after a lot of fiddling, i, pretty pleased with my result ( see seperate thread ), still im not 100% sure if those maths are correct or just happen to work under the tested conditions. Im not realy good at maths, so a lot of it is guesswork ( especialy when arc-functions are involved ). Currently im using a speed of 75,5 for my calculations - using half G.

At 1 Capaticy, the shot force is around 4000 - divided by 39,5 thats 101,2... ill give this a try together with 1g and see what happens.