Best size mice or rat to order for 160~ gram BP?

I've been buying the adult mice artic mice brand as of late and plan on ordering a bulk online order. What would be the best to order ? I was thinking either adult mice or rat pups? How many gram of food should I be looking at ?

If you got a scale, around 16-32g prey. If no scale, are the size mice you feed now leaving a bulge? Or do you need to go bigger? Look at the mice package and see what weight it lists on there. I personally would try to switch to rats asap as it will be much more cost effective later when your beeper gets big to feed it one rat than 4-5 mice. But look at the mouse package you buy now for weight and if that seems small, then buy one of the next size up and see how that goes and what the weight is. Then if that works out well, order that weight or if you want to switch to rats, order that weight in rats. Oh I just noticed you said you feed adult mice, I wouldn't feed jumbo mice or rats as most are retired breeders and all those jumbo stuff have lots of fat which snakes don't process too well.