alloy diameters

[porthos]

i have forgotten which alloy mixes cast larger or smaller. pure lead vs. lynotype??

[fc60]

Greetings,

Lead casts small, LinoType will drop out larger with the same mould.

Cheers,

Dave

[TD1886]

Here's a way to think of it. Lead is the heaviest and Lino is much lighter. It has to do with molecule size of each alloy or metal.

[243winxb]

Linotype makes larger from mold & sizing die.

[JonB_in_Glencoe]

The more Antimony in a Lead alloy, the Larger the boolit.

[405grain]

As per the RCBS cast bullet handbook, the diameter between pure lead on one end and linotype on the other, will have a maximum diameter difference of .002" The actual difference between alloys like 10 to 1, Lyman #2, wheel weights, etc., will actually be around the neighborhood of .001" or less.

[barkerwc4362]

Adding either antimony or tin to harden lead will increase the bullet diameter. Adding antimony or tin to lead will also effect the weight of the bullet. Adding either or both to form an alloy will make the cast bullet lighter. The increase in bullet diameter maybe especially important in a firearm with a minimum diameter throat. My Pedersoli 1874 in 40-65 has no chambering problems with as cast 1-30 Lyman Snover bullet (410663), but with bullets cast 1-20 about 20-30% of the loaded rounds will not chamber.
Bill

[Gobeyond]

Pure lead shrinks more.

[jsizemore]

And hotter alloy shrinks more than cooler.