I'm somewhat curious about framing nailer angles & framing nails. I see that they come in a variety of angles, and the nails that they fire tend to be different as well. I've also heard that despite this, there isn't much difference between framing nailers aside from how close you can fit the gun into a frame due to the angle of the magazine. I've also observed that there are several nail types, each with a different nail-nail attachment method (Such as paper, or plastic connectors between them). From my observations, I think that the paper stays with the nail when it is shot, and prevents water intrusion into the wood target, whereas the plastic just fragments on launch and impact.
What are the differences between framing nailer angles, and their magazine nail types, and what different applications are they used for? When should one type be used over the other?