That's a great question, since there are so many "new"brands out there that we just never saw before.
Coming from a 9mm POV, I have Speer Gold Dot 124gr JHP (not +P) for carry. That would be my primary choice. I picked up some Federal Classic 9BP JHP for decent (still below what cheap FMJ is today), would be my second choice out of what I have.
I consider Hornady a good brand and would trust that too.
If forced to use FMJ in emergency (and for range use), my pre-covid preferences were always:
- S&B
- MEN white box NATO
- Fiocchi
124gr fmj in that order, followed by 115gr fmj in that order.
- I liked Geco and would put it equal to those. I picked up a case of 124gr fmj loose, recently.
In just my own impression, those are loaded warm and consistent, and close to each other. They run clean, and I suspect they all are at Euro NATO spec.
- Yavex (Turkish) 124gr fmj. This stuff is hot, I will only shoot out of sturdy platforms I trust, fullsized CZ, Sig, Beretta, 5906.
- Blazer Brass, I consider to be soft range ammo, and consistent.
I put these 2 brands on the high/low ends of the scale; BB is safe in anything. Yavex will beat most guns up.
In between those, I lump
- PMC
- PPU
- Aguila (it stinks but shoots nice)
- Magtech
- American Eagle
- IMI
I put these in a group, will take whatever is cheapest of the bunch.
I don't trust the JHP in those brands to expand, so I would stick with FMJ.
I find Tula/Red Army/Bear/Wolf etc steel to shoot ok, but wouldn't trust outside of a range unless I absolutely had to (in 9x19; in 9x18 Makarov I do).
Based on past experiences, I don't trust Winchester White Box or Remington UMC. Dirty, very inconsistent, had a squib with UMC. I'd trust Russian steel over them.
Re other cals, WWB doesn't feed well in my .32s, whereas everything else does.
Fairly comprehensive, but there's a lot more out there. I have no idea where Norma 9mm, Belom, Igman, etc fit on that list.