He might be a She honestly. Thats a good size Beep. Not to Fat as its well Proportioned... But very large for a 2017 Male. Mistakes in sexing happen.
On another note, Different Pet stores call their Feeder sizes all different things. Make sure whatever size they call it the prey isn't bigger than the thickest part of your snake. Lastly, Id never feed a Live Small Rat to a 600gram BP. A small rat bites like crazy as they get suffocated. If it was a Retic , Boa or Burm that would be different, but a BP at 600 grams could get a good hole in it. I feed Small Rats to my 1600 gram girl and I make sure their dead first. The last time one was alive its teeth hooked onto a Hide and thank god got stuck in and out of the Door Because that Rat would have sunk those teeth in by accident just by choking.
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