Has anybody tried to use these in an bin tac s45

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A .458 Lee 2 cavity mold makes a 500 grain spire point with decent b.c made for 45-70 black powder long range shooting..Those slugs cast sized will probably be adequate...I buy pure soft lead for $1.00 a pound.....I cast a 650 grain .510 spire point boat tail for my .510 Texan with a B.C of .5....It fits and shoots in .510 Texans.... There are cast mold designs with decent b.c.....