New Army "Caliber Configuration Study"

[woohoo]

woohoo,

Re the 6.5 X 45mm case loaded with solid copper projectiles, what cartridge overall length are we looking at?

If using a design similar to mine with a .25 G7 BC the length of the bullet is about the length of the 139 Lapua. If I seat the bullet where only the boattail is in the powder column the COAL will be 2.7" That is close enough to call it a 308 length. The Carcano diameter case will feed from 308 Pmags so that is what I am using, a lightweight 308 with Pmags. A SCAR 17 would be the best combat platform at this time.

BTW, that is a 111gr bullet. I have another turned bullet designed for the 264/Grendel that weighs 100 grains and has a G7 BC of .25. Figure that can be pushed apx 200 fps faster than a 123 with nearly the same BC as the 123 Amax.