
Wind and I split an order of 500 - tried to bump it up to 1,000 but they didn't have the inventory... :-\

Starline 2.125 and Winchester 38-55 brass

Right out of the box

Side by side comparison
The Lee 379-250 RF shoots very well in both Wind's and my 336 Cowboys. With the Winchester brass the Lee bullet must be sized to .379" in order to cycle into Wind's and mine will cycle them as cast. His shoots the .379" sized bullets very well and mine has a definite preference for the larger as cast variety.

Lee bullet as cast

The as cast Lee bullet in Starline Brass wide dimension is .395" Loaded with the (excellent) RCBS Cowboy dies, crimping die set ~5/8 of a turn past touching.

The Winchester brass loaded with an as cast Lee Bullet. This round will cycle easily through my CB but NOT Wind's.
The OAL for the Lee bullet in the Starline 38-55 2.125" case is 2.530" using all of the crimp groove. It cycles flawlessly through my CB. Comparatively the OAL I've been using with the Winchester/Lee combo is 2.500"
I'm very excited to see how they shoot. I suspect the bullet seated out closer to the lands may be more optimal for accuracy. It may allow Wind to shoot fatter bullets in his which might improve the already impressive accuracy he's getting with his CB

Medicine for dingers
