Really interesting post BillD. Thanks for that.
I don't think the Atlanta Arms stuff is available in Canada (never seen or heard of it, anyone know?) but the Nosler match stuff (both FMJ and JHP) is available now. I haven't tried it, but I am definitely going to get my hands on some having seen this post. The Gold-Dot stuff is certainly available and has been for years, and I have some on hand and have shot a fair bit over the years. It might not be a "walk into any gun store" item, but it isn't hard to find online.
My own subjective preferences on 9mm are, I tend to like 124gr. for some reason. Despite being a whopping 9grs. more, it seems to shoot better in some of my guns. Many of the American made 115gr. FMJ loads are at the very low end of the power scale. Remington/UMC green and white (or yellow) box stuff is the king of this. It can be a nice load, and can be useful for learning/teaching faster (aimed) shooting and that kind of thing, but it won't actually cycle some (older, out of production, European) designs... like my P08 Luger and my HK P9S, are two that I know for sure.
For the American produced basic stuff, I think American Eagle 124gr. is hard to beat.
Some of the European stuff is maybe marginally better quality, but it is hard to really say these days. Quality control seems to be pretty good all-around with American and Western European makers. RUAG (Germany, including Geco, which we see a lot of here in Canada), LAPUA (Finland), Sellier & Bellot (Czech), and Fiocchi (Italy, but is also made in Missouri, although we almost always see the Italian made stuff here in Canada) are all good ammo makers.
Something like a 124gr. Geco (in the red boxes), 124gr. S&B (in black and gold boxes, formerly in red and green boxes) or 124gr. Fiocchi (in blue boxes) are all "go to" for me.
I don't really shoot much in 147gr. for 9mm. Once in awhile maybe. I can see the point of it for duty ammo (and RCMP, CBSA and some other agencies that issue 9mm firearms use it, and - as I understand it - train with a 147gr. FMJ round that mimics the duty ammo). Those kinds of considerations aside, I think most people shoot 115 and 124 at the range.
I can't remember ever seeing any LAPUA 9mm in Canada, but I know they make it. Their .308 and .22LR is pretty much "industry leading", so it would be interesting to see what their centre-fire pistol stuff was like. I'm sure it would be like $50+ a box but...
Most of the "quality" stuff we see here in Canada is made for the U.S. concealed carry, home defence and law enforcement markets. While most of the extra cost is in the technology of reliably expanding JHP bullets, some of the stuff is built to very exacting tolerances, and hence tends to be very accurate (although many of them are very harsh little kickers... +P+ Hydra-Shoks and stuff like that). It is interesting to see how well Gold-Dot did in that test above. Worth a try but, this segment of the market starts at about $1/rd. and goes up from there, so you will be back to trying to find $0.30/rd. (or reloading) very quickly after your journey into the exotic.
I agree that Barnul is... singularly... the worst ammo on the Canadian market in every calibre they make. Nasty stuff. It even smells weird.