Thread: .45 colt bp
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Old December 2, 2012, 03:03 AM   #9
Doc Hoy
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Join Date: October 24, 2008
Location: Chesapeake, VA
Posts: 4,598
I chronied some .45 L BP loads

35 gr BP with 200 grain (Yes that is light) slug (Lee RNFP)

Consistently got upward of 1050 fps

I shot Winchester cowboy loads and got somewhere around 650 to 700 fps

I also shot Cowboy loads from Mexico and got around 500 fps

The factory cowboy loads were smokeless powder.

Recoil on the full BP rounds was excessive so I backed off to 25 to 28. I think I remember about 800 fps from those rounds.

These numbers came from a 4 3/4 inch barrel.
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