Pellet BC List

Not sure what you're asking. On the software/ballistic apps I use, I enter the BC and it "knows what to do" with it. Some apps require additional info such as Density Altitude, temperature, winds, etc., but have some type of default is you don't input the data.
Hard Air lists the pellet/slug manufacturer, style of pellet, weight, and various other details.
 
Friendly reminder:
True BC can only achieved by using your gun and your ammo. Yeah, you might get close from a published list. But you’re going to have to shoot at the published speed in order for your POA is the same as the POI. Vary the speed and the POI will shift. If your goal is to use the value in a ballistic app and you expect your POA to match your POI, you really need to use data you’ve procured.
And yes, you can always tweak the published BC in the ballistic app to reach the true BC in the event you don’t have a chrony at your disposal.