View Full Version : How to calculate your lead alloy blending for bullets
John Boy
01-15-2018, 06:35 PM
https://youtu.be/7Y0raK6_Vbk
Lead Hardness FAQs & How to Mix Bullet Alloys For Hardness
https://youtu.be/og-tMV8_ZW0
MyFlatline
01-15-2018, 06:46 PM
The FAQ video is way off in hardness requirement IMHO I stopped it there.
I consistently shoot 1800 fps with 12 BHN with no leading, 15 to 20 BHN is a waste, again IMHO.
17nut
01-15-2018, 08:41 PM
The FAQ video is way off in hardness requirement IMHO I stopped it there.
I consistently shoot 1800 fps with 12 BHN with no leading, 15 to 20 BHN is a waste, again IMHO.
Mee to!
1850fps and beyond, easy with a check.
What most people confuse is the pressure treshold where an alloy start obturating/deforming and the max pressure it will endure before failing.
I shoot 97/3 (BHN 8) with a check to 1750fps in my 44MAG Marlin 94 microgroove and its @5k shots since last cleaning ;-)
As i use say: Rock hard alloy is a pi** poor substitute for proper bullet fit.
hometownhero
01-15-2018, 11:00 PM
I consistently shoot 1800 fps with 12 BHN with no leading, 15 to 20 BHN is a waste, again IMHO.
Agreed.
Rcmaveric
01-16-2018, 12:39 AM
The FAQ video is way off in hardness requirement IMHO I stopped it there.
I consistently shoot 1800 fps with 12 BHN with no leading, 15 to 20 BHN is a waste, again IMHO.
Agree with as well. I shoot BHN of about 13. My .270 is accurate out 200 yards @ 2050 Fps
Grmps
01-16-2018, 05:50 AM
If you get the fit right you can push softer alloy much harder.
http://castboolits.gunloads.com/attachment.php?attachmentid=45784&d=1341560870
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