I order bulk from Pilkingtons (for my match pellets).
For my plinking pellets, I found the Daisy and Crossman pellets at Wallmart is accurate enough for my use at 10 meters.
I also do bulk orders for my plinking pellets if someone has a decent sale.
When I bulk order I order enough to keep me going for 6 months, or more.
And I reorder when I have a months worth of pellets left.