back when I reloaded, winchester 748 ball powder was my only choice. is there a ball powder for shotguns ?
Ball powders for shotguns and pistols? Heck yeah! Many times the applications seem almost interchangeable with what I use or cater towards - of course looking at specific load recipes so the right loads are indeed used!
Carefully checked. Then twice! Then thrice! But ball powders?
WW748 is indeed a ball propellent, as is WW760 which is synonymous with Hodgdon H414.
Hodgdon HS-6 is a ball powder and the same as the old WW540, in a different canister and cosmetics.
Same with HS-7 and a nall powder, same as the old WW571. HS-6/W540 as well as HS-7/W571 work well in many pistols. Also WW296 is the same as Hodgdon H110, both good in magnum revolver loads and the .410 shottie.
Most of the [former] Hercules/Alliant propellents are flake powders for the shotshell/handgun applications; extruded for rifle apps.
Dupont/IMR over the years (and decades) offered powders like PB and 'Bulk' as early smokeless shotshell propellents, usually flake ganules I believe as i have never actually used either. But SR4756 is a flake powder I've used for some stout .38spl loads and is great as an alternative to Unique or Herco when making shottie field loads. Most IMR rifle powders I'm aware of are extruded; 4198, 4227, 4064, 3031, 4895, 4320, 4350, 4831, etc. SR7625 is another old Dupont flake shotshell powder often overlooked as well.
AA or Accurate Arms offers MANY ball powders for rifles and also extruded too (AA2, AA5, AA7, AA9 are all ball pistol powders!). What surprises me is the lack of information (attempts?) to develop shotshell data from Accurate's pistol powders?
For my own uses, HS-6 is a huge favorite, for handguns and many hunting shell loads in 12 and 20 gauge! And while i haven't used any yet, the newer Hodgdon Longshot powder is one I suspect I'll use a lot someday, as it is a ball propellent and more 'modern' in its chemistry than HS-6. I've also never used HS-7, but would hate to see it go away if Hodgdon discontinued it! I like knowing its available if i ever needed it! Esp for 3inch 12ga applications?
When making magnum handgun loads or magnum shotshell loads, Alliant BlueDot is a huge favorite (according to demand/sales), but its so dammed dirty and the reason I've never used it! I know from personal experience Herco and Unique are also DIRTY, and RedDot used to be worse than it is now.
I also know ball powders are often hotter burning (temperature wise, not saying anything about pressures), as is also all the Hodgdon Clays powders - which are flake form too. All the Hodgdon Clays powders have data for handguns as well.
I cater toward ball propellents for all my reloading, and Hodgdon and Accurate Arms could probably supply 80-90 plus percent of my choices!