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Yesterday I received the following from various suppliers:
Lyman Black Powder bullet mold #401043
RCBS Cowboy bullet mold #40-180
RCBS Cowboy 38-40 dies
LEE Factory Crimp Die
LEE .401 sizer die.
So...down to the reloading room I go.
I took 30 cases and shortened them .10" and I shortened the standard LEE seating die .10". I sized the LEE tumble lube bullets down to .401. I had to turn a better seating stem on the lathe to seat the bullet sooner, before the crimp is installed. This was easy and now I can load these plinking loads very fast with bullet seating and crimping all in one easy operation.
This worked beautifully! The bullets crimped right under the top driving band and fit the rifle perfectly. So my smokeless plinking loads are now serviceable.
Next I cast up a bunch of Lyman and RCBS bullets out of Lyman #2 alloy.
The Lyman bullets have no crimp groove and are designed for Black Powder where they simply sit on the compressed load of BP. With un-modified cases, this worked perfect. Black Powder loads will be ready to shoot as soon as Lathesmith delivers my .401 Star seating die so I can lube some bullets.
The RCBS bullets seat and length perfectly in un-modified cases using either the RCBS crimp die or the LEE FCD. I haven't formed an opinion yet as to which way I will go with this. And again, need the Star sizer so I can lube the bullets before i go shoot'n.
But I'm hear to tell you, the 45LC is a BUNCH easier case to load for. The thin brass on the 38-40 neck precludes you from any "Speed Reloading" . If you are not very careful you'll crush cases. I haven't lost a case yet, but I can see where it would be quite easy to do so.