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I recently bought a Lee .358 mold that should drop about a 200 grain flat point bullet. In my first casting session with it I was using nearly pure lead for some light plinking loads for a 357 Mag. rifle and a 356 Win. rifle. I was somewhat suprised when I checked the bullet weight after gas checking and lubing to find that it weighed in at 240 grains! I assumed the 200 grain weight listed on the mold is for #2 alloy and that the pure lead weight would be higher, but 40 grains more seems excessive to me! The bullets mic correctly so I don't think that is the problem. Is that amount of increase attributable to just the different alloy?

Reb
 

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Beartooth Regular
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Hi, Reb:
That looks a bit much. Lyman has some examples in their manuals. For the 358315 bullet they show:
Lead: 215 grains, .3578" diameter
Wheelweights: 212 gr., .3584" dia.
#2 alloy: 206 gr., .3590" dia.
Linotype: 200 gr., .3594" dia.

Bye
Jack
 
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