Lyman Mold Identity

[Johnw...ski]

Can anyone help me identify Lyman mold 457483A?
It's a gas check mold, I am just wondering what weight it is supposed to be.

Thanks,

John

[floodgate]

Johnw...ski;

It lists as 378 grs. in Lyman No. 2 alloy, and was intended as a gas-check version of the old 405 gr. Trapdoor Carbine load, still offered by Lyman as #457124, but currently listed as 385 grs. It was made 1955 - 1991. Weights will vary from production run to production run, as will exact nose shape, but either top punch #191 or #374 should fit reasonably well if you use a Lyman or RCBS lube-sizer. The "A" is probably a code for the particular "cherry" used to cut the mould. If it is stamped "LYMAN" rather than "IDEAL, it was made after about 1964.

floodgate

[Johnw...ski]

Johnw...ski;

It lists as 378 grs. in Lyman No. 2 alloy, and was intended as a gas-check version of the old 405 gr. Trapdoor Carbine load, still offered by Lyman as #457124, but currently listed as 385 grs. It was made 1955 - 1991. Weights will vary from production run to production run, as will exact nose shape, but either top punch #191 or #374 should fit reasonably well if you use a Lyman or RCBS lube-sizer. The "A" is probably a code for the particular "cherry" used to cut the mould. If it is stamped "LYMAN" rather than "IDEAL, it was made after about 1964.

floodgate

Thanks Floodgate, that is more info than I expected.

John