20 gauge lead load

[Dtrkyman]

Dude has pics of 1.5oz of lead he is loading and a couple companies offering loads now as well.

Windy hill has lead 7s as an option.


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[turkeykiller41]

Lead is 11.3 g/cm and tss is 18+ g,/cm depending on the exact alloy composition.  In short not much more than the 1 1/4 oz of lead will fit in the shell. 

If a 1 1/4 oz is all that will fit,how do explain the Windy Hill 1 7/16 oz load and the other guys 1 1/2 oz load of 6s.