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Effects of Cartridge Over All Length (COAL) and Cartridge Base To Ogive (CBTO) - Part 2
Cartridge Base To Ogive (CBTO) The first half of this article focused on the importance of COAL in terms of SAAMI standards, magazine lengths, etc. There is another measure of length for loaded ammunition which is highly important to precision. Figure 2. Chamber throat geometry showing the bullet jump
