Blazer Brass 115 $14.75 / 50
https://www.buckinghorseoutpost.com/product/cci-5200/
Add 10 boxes then use code HD5200 at checkout. Came to $147.50 w/ no tax and free shipping to me, YMMV. Discount seems to max at 10 boxes but I guess you could place multiple orders. I've never ordered from here so I didn't.
Federal LE133 & 132 available at Bone Frog Gun Club
I got an email from Bone Frog Gun Club advertising LE 133 for $250 for 250 rds. That is the 8 pellet load. With shipping and tax it came to $301. I went to the site and saw they also have 132 for $300/case.