MP Mold "640"...What is it?

[Stopsign32v]

So what are these "640" molds MP has? And why isn't the 359-640 not as popular as some other molds?

[BK7saum]

The 640 molds are a round nose flat point or wide flat nose / hollow point mold. the nose profile is the same on all the 640s. As far as popularity, they vary in weight and diameter depending on the specs of the mold.

[Mal Paso]

It's the Lyman Devastator often without the gas check which most don't need at the speeds that hollowpoints are effective.

[Iwsbull]

I have 3 different calibers in the 640 mold they are all very accurate bullets. The ones I have are the 44, 45 and the 480/475 and as soon as another run is made I will have one for my 500 Linebaugh. With the large hp pin installed they have a gaping cavity at the business end.

[USSR]

The business end of the 359-640.

Don

288561

[JonB_in_Glencoe]

640 is a lyman part number

https://www.midwayusa.com/product/101022244