This is one of JM's favorite powder. Very similar to IMR Trail Boss but very very clean!
Vihtavuori Tin Star: New Powder for Cowboy Action Shooting
Vihtavuori Premium CAS Powder
Action Shooters, you reload your own ammunition for consistent
performance and absolute reliability. Cowboy Action Shooting is all
about your skills, your passion for the sport and the frontier attitude
of the Old West in America. You take your sport seriously and so do we.
You want a powder developed specifically to breathe new life into the
classic cartridges that tamed the wild western frontier. You want a
powder that is accurate, clean burning and ideally suited to such
venerable cartridges as the 38-40, 44-40, the 45 Schofield and Colt. You
want Vihtavuori Tin Star.
Bulky, Accurate and High Quality
benefit of Tin Star is its exceptionally high loading volume. This
porous powder fills the case much better than most conventional
smokeless propellants, providing the loading density needed for those
classic black powder cartridges. Tin Star gives reliable ignition in all
conditions, burns clean and leaves very little fouling or residue. It
meters easily, making the task of producing high quality and uniform
handloads that you can depend on just that much easier. Handloads that
you can depend on, shot, after shot, after shot. Vihtavuori Tin Star
We developed Tin Star specifically for Cowboy Action
Shooting, knowing that you take this sport seriously. It is a single
base nitrocellulose powder with certain properties that are similar to
Black Powder, but with none of the unfavorable characteristics
associated with that propellant. Tin Star is reliable, burns cleanly and
has the bulk density you want for reloading the old original Black
Powder cartridges. With Tin Star, you’ll have the ammunition you need to
succeed in this demanding sport. The rest, is up to you.
Evil Roy: "Vihtavuori powder is the best"
Roy - Overall World and Overall National Champion Cowboy Action Shooter
- is one of the icons of the sport. Evil Roy says Vihtavuori to be the
best CAS powder at the market.
"I have used Vihtavuori powder for
several years in all my Cowboy Action firearms. It is very clean
burning, very consistent in velocity and has soft recoil. The new
Vihtavuori Cowboy Action Powder will be even better suited to our sport
as it is especially designed for the large cases and small charge weight
we normally use."
- Evil Roy