I've been using a 210gr. LBT mold for quite q few years. Since I add about 10% linotype, most bullets drop out at 205-206gr. Since the T/C has the 1-14 twist rate, any bullet above 180 should be a winner. I use a Federal 200 primer in my .357 mag loads, and a Rem.71/2 in the Max loads. Use 296 powder for both. Oh yea, by the way, all I do is seat the gas check, I don't size in my Lubrisizer. I size the bullets when I shoot them. A little Lee liquid alox, and away we go. gypsyman