HuntTXhogs Wrote:The limited offerings in 6.5 and 277 that fit within Grendel and 6.8s grain weight are short and stubby whereas the 6mm 90 grain are longer and therefore have a higher sectional density....
Sectional density is a function of weight and diameter, not length or shape. Maybe you meant Ballistic Coefficient?
https://www.chuckhawks.com/sd_beginners.htm
https://www.chuckhawks.com/sd.htm

