View Full Version : Inaccurate hardness?
Triggernosis
02-18-2017, 06:43 PM
I purchased some of these bullets recently: https://www.grafs.com/retail/catalog/product/productId/10652
They say Brinell 12 on the box, but I can't even dent them with my thumbnail. Do you think they could be harder than 12?
runfiverun
02-18-2017, 07:20 PM
depends on how they got there.
12 would be @ 2% tin and 3% antimony.
the tin would give you a false thumbnail test.
Triggernosis
02-18-2017, 07:52 PM
Thank you. This bullet stuff is way too complicated for me. :veryconfu
ioon44
02-19-2017, 10:03 AM
More important than hardness is bullet fit to your barrel, I like to be .002" over bore DA.
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