Pistols Seymour, IN - Acme Sports had a large selection of suppressors on their table at the 1500, so I would assume they have several in their shop in Seymour. You can call Elmore's and ITP and ask what they have in stock too.
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I used to hike in the Smokeys wearing a full size 1911 in a Crossbreed holster.
I tried a a nice light S&W .357 and I didn't like the recoil. I traded it in for a big Ruger GP100 and it has no recoil.
Neither revolver was comfortable on a hike, but once the crossbreed was broken in I could...
The links below contains some info about the original testing of 45 ACP ammo against live bulls and cadavers in the Chicago stockyards before the Army adopted the 1911.
The Sight 1911 .45 ACP Page
Background Information on the M1911 .45 Caliber Pistol