Originally Posted By: ninehorsesGood post! Good answers!
While we're here, will someone explain Sectional Density numbers, and how some use these numbers instead of BC.
Is it just different numbers to arrive at the same answer?
Sectional density is just the weight of the bullet compared to the area (diameter)
So a 100gr 0.224 bullet will have a much higher sectional density that a 100grain 0.45" bullet... it is the weight per square inch.
It is very indirectly related to BC... a very distant cousin.
.
