The Macomber Affair is a 1947 B&W adventure drama movie, a screen adaptation of the 1936 Ernest Hemingway's short story "The Short Happy Life of Francis Macomber", directed by Zoltan Korda and starring Gregory Peck, Joan Bennett, and Robert Preston.
The following weapons were used in the film The Macomber Affair:
During the safari, both Francis Macomber (Robert Preston) and his guide, professional big game hunter Robert Wilson (Gregory Peck) are armed with Sporterized M1903 Springfield rifles. These rifles are correctly described as "Springfields". Three or four rifles that differ in details like the front sights are used. In the original story only Macomber uses a Springfield rifle while Wilson's gun is a "short, ugly, shockingly big-bored .505 Gibbs".
Macomber's wife Margaret (Joan Bennett) holds a Mannlicher-Schoenauer carbine during the safari. It is called "Mannlicher", following the the original story where the rifle is described as "6.5 Mannlicher".
One more gun, used by Wilson, is a double barreled gun that is supposed to be a Double rifle rather than a shotgun, judging by the front sight and the ammunition that Wilson loads - it looks way too long for 12 gauge shells and looks more like Nitro Express cartridges.
Numerous hunting guns, as well as eight handguns (some guesses can be assumed but none for sure), are seen in the gun store when Macombers choose guns for the safari.
