I cast some Lee TL356-124-TC to use in my Wife's new Taurus Millenium. We went to the range this weekend and about half of them keyholed.
There were loaded as cast (WW w/ a pinch of tin), lubed with LLA and loaded with 3.5gr of 231 which is a middle of the road load as far as velocity. I did get moderate leading in the barrel.
She was limpwristing quite a bit at the range with numerous malfunctions. I ruled the load as the cause of the malfunctions yesterday after I shot over 100 rounds of the same load with no malfunctions.
Now, my questions is this ... if I boost the velocity to gain more pressure, I should get a better orbutration (sp) and eliminate the keyholing and leading.
I will also change powder to WSF as 231 was creating more smoke than momma was happy with.
I am also considering changing alloy to 50/50 ww/pb and giving them a second coat of LLA.
Any other ideas??