That's not determined by the gun but rather the magazine. The 30 round magazine is popular largely because it's often the cheapest and most readily available as the tooling was scaled up for mass production for the military. You can buy a 5 round magazine to put in an AR style gun it's just harder to find and it's not clear you're gaining much beyond maybe a slight hair better ergonomics or mobility from certain shooting positions so most hunters don't buy them.
If you want to single-load cartridges or pin to a 3 round magazine or whatever, have at it. Most of the argument still applies and especially the cheapness and parts availability and intercompatibility with mass after market options. Plus you'll be able to use a larger mag when target shooting. Another plus even if you don't care about magazine size is you can easily swap the barrel (actually upper receiver) without having to legally buy a new gun, so you can train with very cheap .22 ammunition using all the same ergonomics / muscle memory for when you hunt deer.
alt Hacker News
That's not determined by the gun but rather the magazine. The 30 round magazine is popular largely because it's often the cheapest and most readily available as the tooling was scaled up for mass production for the military. You can buy a 5 round magazine to put in an AR style gun it's just harder to find and it's not clear you're gaining much beyond maybe a slight hair better ergonomics or mobility from certain shooting positions so most hunters don't buy them.
If you want to single-load cartridges or pin to a 3 round magazine or whatever, have at it. Most of the argument still applies and especially the cheapness and parts availability and intercompatibility with mass after market options. Plus you'll be able to use a larger mag when target shooting. Another plus even if you don't care about magazine size is you can easily swap the barrel (actually upper receiver) without having to legally buy a new gun, so you can train with very cheap .22 ammunition using all the same ergonomics / muscle memory for when you hunt deer.