Vern Humphrey
Member
Longbow said:Its interesting to note that I've heard similar reports (heavy leading, inaccuracy) on folks using polymer coated bullets in 9mm and .40 cal (Speer bullets?). It becomes apparent when loading to or near max load. The .45 ACP doesn't seem to be affected.
I'm guessing the pressure variation is the factor.
High presure = high heat generation = more melting of the polymer coat?
Saint John (that's Saint John Moses Browning) laid hands on the .45 ACP (and on the gun he created for it) and that's why bad things don't happen to it.