Hard for me to say- I'm not seeing your snake to compare the size of the meal to HIS size. In the subforum "BP Husbandry" you can always refer to this chart*- but I'll add that there is some disagreement (by myself & others) about feeding ADULT BPs on a weekly basis- this chart appears to be written by/for breeders of BPs for the most rapid growth- not always the best thing IMO. But at least you can compare the size (wt.) of prey to the size (wt.) of your snake.
Reptile stores make money by selling things- 2 is always better than one if you're the seller, eh?