Honestly i would be feeding her a medium rat right now once a week. We feed mediums to 600 gram snakes with ease. If its her 3rd winter she is mature enough to breed but i alao believe weight can be an issue at times. If she is short and heavy body then i wouldnt worry about it but if she is long and skinny i would. I say start feeding mediums once a week and maybe a small rat mid week also. Judge how thick she is and decide if she can take on the burden of egg laying just remember the female will lose weight after egg laying how much though idk it varies. Goodluck.
