Viewing the 9mm vs .22LR comparisons is not about which is the better caliber, but which calibers serves best for Self-Defense, Hunting or Plinking.
Hornady used the AMP bullet jacket & machined a long precise, aluminum tip, which relocated the Center of Gravity and Optimized its Long-Range Performance.
Two very popular rifle calibers ever created, heres a simple look at .308 Win vs 30-06 and points out the practical differences between the two.
We will focus on Cartridge Cases since this is what holds the other three main components (Powder, Primer and Projectile).
Hot loads wear out a gun more quickly, and except in narrow circumstances, are not necessary. A good example is the 220 Swift.
The bullet was to have four Lube Grooves with no Crimp Groove so it would carry the needed amount of lLbe for Shooting without Wiping between Shots.
The science of Ballistics has been evolving – in 2020, you’ll see all of the bullet designs still on the market, and doing well, each for its own reason.