Originally Posted by
Bass Ackward
Larry,
I think you draw some interesting conclusions about pressure curve with the twist rates that are not correct. Listen to my grandson.
Watched my grandson with his pedal car in the driveway. He was sitting still and I cut the wheels hard to the right and asked him to start out. He said grampa, you need to straighten the wheels out some and then turn if you need to otherwise it's too hard to pedal.
Load from 11 to 15 grains of Red Dot. That should max out between 1700 and 1800 fps which is the ideal RPM range. See if you get different accuracy from the three twists even in the ideal RPM zone. If the accuracy is different in the ideal zone, then the only variable has to be pressure. Please post those group sizes.