i have a few questions about the trajectory zero angle program, i got it from a member on this site so i figured its a good place to ask.

1. when i first used it, i input the twist rate. i have a 1:16 twist 22 inch barrel

so is it a 1 1/4 twist rate?

as i understand a 1:16 twist in a 16 inch barrel would be 1 twist rate right?

so in the program i put in 1.25 for twist rate at first it accepted that now it changes to 6:00 when i input 1.25? am i doing this right? and is this correct? just a different way of saying the same thing?

2.what is the impact ht. its impact height correct? if so what is that? is that the height of the hole the bullet makes? if not how do i measure it?

3. angle of fire, is level shooting 0 degrees? and shooting a sleight down angle would that be like 350 degrees or am way off? if so what is the correct way to use this function?

4.bullet length is that the projectile? or the projectile and cartrige combined if i put in the projectile length it spits out 360 inches of wind at 100 yds so thats not right, when i put the cartrige and projectile length i get 1/2 inch wind at 100 yds and thats about what i see at the range, so i think thats right.

please answer any questions you can even if you only know how to answer one of my questions please do, any answers you can give will help, thanks