WB
I found those pure copper HAWKs to be a little gummy
Friday, January 05, 2018, 13:46

in my bore. I was shooting a 300 gr. .430" at 2300 fps. They expanded wonderfully, textbook examples. No more than you'd actually be shooting in a hunting situation it causes no problems shooting at my handgun ranges.

The brass alloy, annealed, is supposed to be easier to work with. At 59 cal. who cares about expansion?!


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