The following guns were used in the film Murder by Numbers:
Smith & Wesson 3913
The Smith & Wesson 3913 is the main sidearm of Det. Cassie Mayweather (Sandra Bullock).
Smith & Wesson 3913 - 9x19mm
Cassie with the S&W. (The actress noticeably uses an excellent grip.) Note the lack of double-stack bulges.
Cassie fires her sidearm without flinching. The actress noticeably uses an excellent grip and fires without flinching, which is likely the by-product of either training on-set, or she may own a weapon in real life, but this is unconfirmed.
Smith & Wesson Model 36
Both Richard Haywood (Ryan Gosling) and Justin Pendleton (Michael Pitt) are seen using the Smith & Wesson Model 36. Haywood is also seen holding a nickel plated S&W.
Smith and Wesson Model 36 - .38 special - 5 shot. First pattern with flat latch cylinder release.
Justin Pendleton (Michael Pitt
) holds the S&W during the attempted suicide pact.
Smith & Wesson Model 36- .38 special.
Richard Haywood (Ryan Gosling
) holds a stainless S&W during the attempted suicide pact.