Ed' 7:1 Blend -- 80g Blackhorn

[Idaholewis]

Somebody check my math....
40 parts lead + 1 part tin = 41 equal weight parts
Assuming the ingots are all equal, and using 1lbs as the weight, here is the math..
16/41=0.390243902439024 Which would be the weight In ounces of the total tin in the batch.
7 ingots pure + 1 Ingot mixed = 8 total ingots.
8x16 = 128 total ounces
128-0.390243902439024 =127.609756097561 total lead in the mix
Gonna round off now:
127.61/.39=327.21
327.21:1 ratio
Ed, did you check the hardness of this bullet Before you sent them to Ron? Curious where they would be. My guess is pretty darn close to 5 BHN still.
You do have a dang good performing bullet right there, regardless of the BHN

They were just barely above Pure Lead at .038, My Lead Hardness Chart jumps from Pure Lead to 40-1 Alloy, they don’t give a listing in between the Two, .015 to .035 on my Cabin Tree Lead Hardness Dial is Pure Lead which is 5 BHN (Pure Lead is given a WIDE Range) From Pure Lead it Jumps Straight to 40-1 Alloy Which is 8.5 BHN, And is .045-.050 on my Dial. SO, there is a Gap Of 10 Point Values Between .035 and .045 that is Not given a BHN Number, one is left to Guess Between 5 and 8.5 (Top end of Pure Lead, And Bottom end of 40-1 Alloy)

With Ed’s Bullets Reading .038 i would be inclined to Say 5.5 BHN, 6 BHN on a Hard Day

 

[sdporter]

I’m sure you’re pretty close.