Chapter 2:173 seems to specify that the only forbidden foods are carrion, blood, swineflesh, and that which hath been immolated to (the name of) any other than Allah.
Chapter 2:173 (Pickthall): He hath forbidden you only carrion, and blood, and swineflesh, and that which hath been immolated to (the name of) any other than Allah. But he who is driven by necessity, neither craving nor transgressing, it is no sin for him. Lo! Allah is Forgiving, Merciful.
But, 5:3 seems to mention methods of killing which would result in the food being forbidden, which seems to contradict 2:173 because it states other foods which are forbidden (foods killed by certain methods) which weren't mentioned in 2:173, and seems to indicate that the foods listed in 2:173 are not the only forbidden foods.
Chapter 5:3 (Pickthall): Forbidden unto you (for food) are carrion and blood and swineflesh, and that which hath been dedicated unto any other than Allah, and the strangled, and the dead through beating, and the dead through falling from a height, and that which hath been killed by (the goring of) horns, and the devoured of wild beasts, saving that which ye make lawful (by the death-stroke), and that which hath been immolated unto idols. And (forbidden is it) that ye swear by the divining arrows. This is an abomination. This day are those who disbelieve in despair of (ever harming) your religion; so fear them not, fear Me! This day have I perfected your religion for you and completed My favour unto you, and have chosen for you as religion al-Islam. Whoso is forced by hunger, not by will, to sin: (for him) lo! Allah is Forgiving, Merciful.
Is there another interpretation other than the interpretation that 5:3 abrogates 2:173 which allows these verses not to be contradictory? Just to be clear, the issue is with the word only in 2:173. If that wasn't there, then I can see how the verses could be combined. Certain laws being revealed, and then others.