I didn't know Gold Dot was made much differently than other JHP...someone mentioned the copper being bonded to the lead, which I'd never really thought of as a thing...but the only JHP's I've personally observed ('hey, these are some of those supposed crazy banana-peeling bullets...let's go shoot some milk jugs') definitely had separation.
So Speer is one of those that ends up in a little wad of a bullet, rather than the sides curling around into potetional flechettes or whatever? With the size of the cavity, I had always just figured them to be big expanders.
Also somewhere up there...Re: .357sig and FTF...never thought about the impact the neck would have on loading. Does make sense that they would be far less likely to misfeed than a similar 9mm or 40. However, I of course went and read up on a few ammo-related topics and am as confused as ever as to why it exists. Note: I am not looking to incite debate, I just like learning firearm-related stuff.
I'm not even a .40 fan, but at least I can tell you what a .40 does that, on paper, makes it more deadly. I.e. heavier bullet, more powder (than 9mm). But .357sig...isn't it just a .40 case necked down to a 9mm bullet? Other than the effects of a pistol cartridge being necked, why not either .40 or 9mm?
I'm browsing loads right now, and best I can tell....40 is just 9mm with a heavier bullet (looking at weight versus muzzle velocity). And uses higher case pressures, IIRC, which I think is why I find it particularly loud and snappy. .357 is 9mm with more speed (and even higher pressures).
I dunno, I'm mostly just talking to myself and trying to figure why people don't just carry 135gr barely-subsonic 9mm and call it a day. I like
this stuff and can't see why I might switch to anything else unless maybe I wanna lob 147gr bullets.