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441Sqn_Twang

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  1. I think that you need to consider cross-sectional density of the bullet. In this case, a 55gr 5.56mm projectile is close to optimum for that caliber. But a 150 grain 7.62 (.30 cal) has sub-optimal cross-sectional density, and therefore less effective penetration. Try comparing the 55gr 5.56mm round to a 165 gr 7.62mm NATO round, and you will see less of a difference for sure. For the 15mm gun versus the 20mm - the 20mm is 25% greater caliber - that means more than 25% increase in bullet weight. The weights, shapes, ballistic coefficients, and cross-sectional densities of the bullets being fired from these cannon all contribute enormously to their comparative effectiveness - not just the muzzle velocities. A slower bullet with a much greater weight and optimum cross-sectional density will penetrate much farther than a lighter faster, less efficient bullet. For practical proof, look at the nature of hunting cartridges - medium and large bore hunting rifles, and long-range hunting cartridges. What do we know about the projectiles fired from these 15mm and 20mm cannons?
  2. It appears that the ammunition loadout for the P-51D (Battle of Bodenplatte) is limited only to ball or AP ammunition only. Chuck Yeager spoke of the explosive incendiary .50 cal shells used in his P-51s (B and D). Why are these not modeled in the game?
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