It is a pleasure to see so much .... I go crazy with all that.
In my country there is not as much variety as the one you have. There is only one importer of gunpowder and on top of it it brings gunpowder or in bad condition or adulterated.
The best powder that I get is from Fabricaciones Militares, FM, it is the A19 ... it is a very slow powder machine, with coarse grains, which is used to recharge the lime. 12.7x99. For the .338 win. mag. with heavy bullets it works well for me.
Stopped in my local Sportsmans Warehouse in Northern Kentucky with a cousin. Powder supplies were thin but primers (Large Pistol and Large Rifle) were in good stock, Small Rifle and Small Pistol only a couple left. I grabbed a Small Rifle (WSR) and my cousin got a Remington 1 1/2. Best find for me were Nosler Partition 9.3 bullets at under $20 a box. Stuff can be found.