But simply to say its a medium speed powder seems a broad statement.
It is. I had a few more helpful thoughts for my last post, but got pulled away and had to wrap it up. I'll try to expand a little now.
Just trying to get a grasp on how to categorize powders... or am I still looking at this all wrong?
I think most loaders categorize powders in their minds. Speed range is the most important attribute; and thus, the most common way to categorize them.
I have "fast" "medium" and "slow" in my mind. Of the 10 powders I use (own/load/shoot only pistol) they go like this, in order of speed,
based on my experience:
Fast: Nitro 100, Bullseye, W231/HP-38, AA#2.
Medium: AA#5, Unique, HS-6, Power Pistol.
Slow: AA#7, W296.
I also view them in terms of "semi-auto" or "revolver" powders - but this is much more gray and there is a lot of crossover. Basically, because of the large cases of the revolvers I shoot (38/357, 44S,44M), easily ignited powders tend to be better suited for revolvers. For revolvers, that would be Nitro 100 (new to me; only use for 38 target), Bullseye, Unique, Power Pistol. W296 is hard to ignite, but I use it only for full-power magnum rounds where the powder fills the case and a magnum primer is used - so it is just one of many exceptions. I prefer to use AA2 or semi-autos, but it makes excellent 38 target rounds too.
For semi-autos, I use AA2, AA5, HS-6, & AA7. But again, these can also be used for revolvers in the right conditions. I also sometimes use Unique and Power Pistol for semi's. Bullseye (one of my "revolver" powders) makes great 9mm ammo with light bullets; and it approaches legendary status in 45ACP. Speaking of 45ACP, I use my "revolver powder" W231 for it more than any other. Like I said, exceptions abound.
This is all just a sample of my thinking based on 3 decades experience. But it kind of illustrates how powders can be loosely categorized.
You seem to be putting HS-6 and Unique in the same category.
I do in terms of speed range. They are both "medium" speed powders in my mind. Unique is a little faster though. But the biggest difference is that Unique is big and fluffy and likes to ignite; and HS-6 is thick and dense and doesn't like to ignite. That why I tend to use Unique for cavernous revolver cases, and HS-6 for tight semi-auto cases.
I spoke with some handloaders (customers) while I was at Sportman’s Warehouse who told me 2400 would be a better choice than H110 for high end magnum loads as H110 doesn’t like to be loaded anywhere below max while the 2400 gives you some range and forgiveness… Any thoughts on that?
I think that they are correct insomuch that 2400 is a little more versatile than H110/W296. So their logic is basically correct.
But. . .
When
I go to load ammo for this purpose (full power magnum) there is no need for versatility. I'm going full-power. Once you get into that realm, go big or go home; and W296 is second to none in this application. If I want to load "slightly-off-full-power," and I do sometimes (for magnum level rounds, but better suited for shorter barrels), I reach for Power Pistol (due to it's high-energy), or Unique - if the bullet being used is light. (AA7 would be a good choice too, but I reserve AA7 for hot 10mm Auto rounds.).
So that's
my loading style and logic behind it. I also freely admit to being a "fast powder centric" loader. I try to use the fastest powder possible that will serve the application. The beauty of being a handloader is you get to pick and choose your loading style. And learning is half the fun. Enjoy the ride. It's fun and rewarding.