Texas ranger veteran called Hickok45 in his youtube channel has nice videos firing actual real-life versions of some of the SG guns.
Take a look:
Other related movies from the channel:
Marlin Guide Gun (bear rifle): http://www.youtube.com/watch?v=k0JEIFWgeI0
1873 guns bonanza: http://www.youtube.com/watch?v=5vRFvd1W8v4
Bowie Knife: http://www.youtube.com/watch?v=t56w8Axe ... zSohHgUgk=
Remington 1858: http://www.youtube.com/watch?v=KK6Qr7qm ... ure=relmfu
Colt Dragoon: http://www.youtube.com/watch?v=y5v68GMg ... 7acqgOuD8=
Remington 870: http://www.youtube.com/watch?v=J-ioLoNP ... GcN_nlASM=
Colt SAA Black Powder: http://www.youtube.com/watch?v=TddTjeBA ... nszay2fPE=
Colt .45 SAA 1st gen: http://www.youtube.com/watch?v=4cu0G8fv ... eWOoXLzXk=
Nickel Colt .45 close-up: http://www.youtube.com/watch?v=Sgj0T1jE ... gNHvRMmDw=
Colt SAA woods walk: http://www.youtube.com/watch?v=15B18tnH ... LjCr1gsVQ=
Colt SAA close-up: http://www.youtube.com/watch?v=2r7XEnyc ... bxQq9-jOU=
Colt SAA 1st and 2nd gen comparison: http://www.youtube.com/watch?v=t8-fElID ... Apu7tD0%3D
Colt .45 barrel length comparison: http://www.youtube.com/watch?v=Zf6Db1Os ... kGEUjX4%3D
Colt .45 close-up: http://www.youtube.com/watch?v=g_YFIljic6o
Browning 1886: http://www.youtube.com/watch?v=F4seN_qF ... SF3DKlmMA=
Colt and S&W revolver comparison: http://www.youtube.com/watch?v=G4G7wTIc ... ure=relmfu
Marlin .45-70 shooting: http://www.youtube.com/watch?v=VRvCC8ug ... ure=relmfu