Good morning, gun scribes!

I've read here in the past that weight is not such a big contributor to the performance of copper bullets. With that said, is there a point to the Hornady 140 grain 6.5mm GMX or, ECX, I guess they call it now? Or will the 120gr GMX or CX do just as well on big game?

Thanks!

(EDIT: Sorry, cartridge will be 6.5 Creedmoor)

Last edited by Igloo; 05/19/22.

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