Thread: Assessing resulting vertical spread from ES (or SD) for your load at distance

This is a good idea, I hadn't considered looking at it like this, I ushally just measure groups and worked off that.

Just played around with a online calculator ShootersCalculator.com | Ballistic Trajectory Calculator not sure how accurate it is but it let's you enter sight height at 0 and zero at 0.

For my loads with a maximum spread of 25fps it gives me a different point of impact of 1.3 inches at 500, which is somthing to think about , maybe we should be using the bottom number of ES or lower third instead of average to build drop charts, as I would ushally prefer to have point of impact slightly high than low.

If i built my drop charts off my avg velocity i would be .78inch low (20mm) @ 500 if my load was at the bottom of my ES. Not to much really at 500y, but I could see it being interesting at 1000y, could easily be a miss depending on target size.

I guess the goal is to keep ES down.