ORIGINAL: Semisane
Can you "flatten" the shot ofa given projectile by simply increasing the powder charge?
Maybe, maybe not. If the increased charge increases velocity, the trajectory will be flatter.
But it takes a pretty good increase in velocity to make any real proctical difference in trajectory. And then you can get to a point where increasing the charge has a zero or negative effect on velocity.
If you're blowing unburned powder out of the barrel the only thing you're accomplishing is adding more weight to the projectile you are shooting(the bullet + the unburned powder = the projectile).
So, for example; lets say I am shooting a 300g hornady w/90g of 777. The group is inch and half high of zero but a good group. Instead of tweaking the scope, will increasing the charge to 100g theoretically lower the group?