Power difference between slingshots
I hope someone can help with this...
I have two slinshots, one is a simpleshot scout X (the green one in the photo) and the other is a 3D printed slingshot, which is based on the Simpleshot scout LT (I think), which has slightly smaller gap between the forks, by about 7mm.
I am using the same band on both slinshots (it's a different one in the photo but I have tried the same bands), same active band length, thickness, taper, etc.
The 3d printed one is considerably more powerful.
I do not have a reliable way to measure the speed of the ammo, however I can hear the sound difference, I can feel that the ammo hits the target much faster than the Simpleshot one, and most importantly, the 3D printed one goes through a can of beer clean from side to side, while the scout X cannot even puncture the tin. I have repeated this numerous times and same result.
I am testing with 10mm and 11mm steel ammo, shooting from 10m away.
Is it possible that the slightly narrower fork configuration of the 3d printed model can make that much difference or is there something else that I should look into?
Accuracy is excellent with either slingshots, I just can't figure out why such a massive power/speed difference between the 2.
I have also tried a slightly shorter band on the Simpleshot, to increase the ration of elongation, which should give it more velocity, but it's still slower than the 3D printed one...