How are you determining prey item size? I do the 10-15% rule for my snakes so a feeding for me would be:
Snake Food item ratio Prey Item
200g X .15 = 30g
200g X .10 = 20g
I usually lean toward the higher gram prey item. I also follow this chart:
https://scontent-lax3-1.xx.fbcdn.net...d8&oe=56ED171B
So that would be a Large mouse or a rat pup.
Sorry just realized this was started months ago.