Quote:
Originally Posted by typetwelve
I just made a lengthy thread about this. Now, this is my finding with 44 magnum brass, but I'm guessing it would apply to anything similar in a Lee FCD.
Loading .430 lead projectiles in thicker walled brass, the Lee will smash them down to .429-.428". By "thicker" I mean some of my brass has a thickness of .010", and others .011".
.011" thickness brass and a .430" projectile, the Lee die will 100% take the bullet down to at least .429" and in my Ruger SR, that means leading.
It is super easy to tell when this is happening as it takes considerably more force to run the round in the die than if it is a smaller size.
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This is why Lee's precision is mediocre at best. Thankfully my 44 FCD won't bother a .430" bullet with the thickest brass I have, however my 45 FCD was a different story. I had to enlarge the sizing ring by .0015" to use a .452" bullet.