I would like to develop a load that would copy the off the shelf Hornady 123gr AMAX round so I can switch between my reloads and factory ammo if needed without jacking with my scope dope. I would assume I need a power to match the burn rate of what Hornady uses then match the FPS of the factory load? Anything else that needs to be done to try to match the two loads? I would assume that I could set my COL to about as long as I can fit in the mags and just make sure they chamber and I'd be okay?
Anyone know what powder I should be using to set this up?
Anyone know what powder I should be using to set this up?
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