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Old June 3, 2017, 10:47 AM   #2
44 AMP
Join Date: March 11, 2006
Location: Upper US
Posts: 21,002
Is the maximum theoretical speed of the bullet the same as the speed of the burning wave front?
If you can remove all friction, so that all the energy goes into propelling the bullet, then in theory, you would get CLOSE to the speed of the powder gas.

Close, because even if you could remove all friction, you can't remove the inertia of the mass of the bullet. It will take some energy to accelerate the bullet from rest.
All else being equal (and it almost never is) bigger bullets tend to work better.
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