seansean1444
New member
i have been hearing allot about 6.5 grendel and 6.5 sweede. what are these rounds never really heard of them before but allot of people say good things about them
6.5x55 Swedish is a great cartridge for whitetails.
The 6.5mm bullet has a relatively high SD for it's weight, but these SD can be achieved in 7mm, and 30cal, and 33 cal bullets also.
Weight to diameter is sectional density (SD). Ballistic coefficient (BC) is a ratio of how the bullet compares to a "standard projectile" in overcoming drag, and is indicative of a bullet's ability to retain velocty and energy in flight.BC is a formula of weight to diameter, the square of it's base, so in any caliber a heavier bullet has a higher BC then a lighter bullet, lentgh maybe in the equation also, because in given bullet and weight, the pointed one will have a higher BC then a round nose. I am sure someone will chime in and give a better explanation.
Keep the comparison "apples to apples", and it's just another cartridge with a lot of hype based on misinformation and improper comparisons.