First of all the only legal pistol to hunt with in Md is a 44 mag. is that what you want to buy? Secondly, stet docket is like PBA (probation before judgement). You are on unsupervised probation (no probation officer to report to) for a specified period of time and if you have no other legal issues in that time frame there is no record, it is esponged from the record. The difference between the two is and I'm not for sure is a stet is they can try you on the orignal crime and PBA would just allow a guilty verdictfor the orignalif you were to get into another legal issue within that time frame. I don't know about the purchashing question but you can proablly get around it by asking for a reschedule and push the trail date back beyound your birthday. Best thing to do is ask a gun shop owner, he gets rejects from background checks all the time and he might know the answer. With that said I would do the right thing and let it play out within the legal system and not try to skirt the law. One more thing, pot is illegal for a reason.