Yesterday I used my Lee .457 500gr GC mold for the first time. I was hoping it'd throw a .459 bullet. My Wife got it for me for Christmas & I'd emailed Lee & they told me that is the minimum it'll throw usually they are .459.
Mine wasn't it miked .4575, cast out of wheel weights. The weight was pretty uniform at an average of 496grs. I may email Lee again & see if it can be brought up to .459. I thought for the price I'd take a chance.
Pretty bullet though.