Newtosavage
Member
- Joined
- Nov 30, 2015
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My Ruger 77 Mk II in 7x57 loves the factory loaded "green box" Remington ammo, with the 140-grain Core-Lokt bullet. That's the good news. The bad news is that those boxes of 7x57 are expensive and hard to find, and I can't find those bullets available anywhere. So I noticed that Midway had some bulk 150 Core-Lokt bullets in 7mm and I thought I'd give them a try.
What I can't understand is that according to Remington's own ballistics chart, the 140 grain Core-Lokt has a HIGHER ballistic coefficient (.39) than the 150 grain (.346). That just doesn't make sense to me. Same diameter, longer bullet should have a higher BC, right?
https://support.remington.com/CORE-LOKT®_CENTERFIRE/Rifle_Ballistics_for_Core-Lokt:_7mm_Mauser_(7x57)_-_30-40Krag
Any thoughts?
What I can't understand is that according to Remington's own ballistics chart, the 140 grain Core-Lokt has a HIGHER ballistic coefficient (.39) than the 150 grain (.346). That just doesn't make sense to me. Same diameter, longer bullet should have a higher BC, right?
https://support.remington.com/CORE-LOKT®_CENTERFIRE/Rifle_Ballistics_for_Core-Lokt:_7mm_Mauser_(7x57)_-_30-40Krag
Any thoughts?