that's a big oof. typically numrich has good stuff. at least with a model 250 you should be able to use a dowel and hammer to bend the magazine feed lips correctly if needed. the magazine might also be setting too high or low which you can tell if it's very difficult to insert the magazine on a closed bolt (it should just insert with minimal force against the magazine spring). much like a 1911, the feed lips should not be parallel, but when the bolt is closing, the round should "pop up" about 2/3 from the forward end of the feed lips in order to present to the chamber mouth properly. if it's being retained all the way to the end, you will likely have a failure to feed.
positive extraction and ejection on a wider variety of ammunition where they have different lengths of case (.22 long rifle, .22 rifle, .22 short). the cost-reduced Glenfield Model 60 (and the older Model 99 it was based on) had only one extractor and could be unreliable with short cases.
purse carry is generally a bad idea unless you have zero other options and it's a clutch purse that you always have your hands on all the time. in limited circumstances a shrouded (or "hammerless") revolver like a model 642 might be a solid option instead of an automatic with reciprocating parts can get caught on stuff - just like an exposed hammer spur on a revolver that isn't shrouded. off duty carry options i offer to policewomen tend to be a 5.11 holster shirt for small automatics, or if that's not an option, an IWB holster for appendix carry (less obvious from a front or side profile, allows common clothing without resorting to jackets in summer or other tells). Tactica makes an excellent one, and the Betty holster can work if you wear jeans and have a specific pistol in mind like a Ruger LCP, but often the Betty holster suffers from being insecure to grappling attacks, while a Tactica offers a more secure fit (and level 2 rating). avoid the gimmick "flashbang" bra holster, not only is it generally quite obvious and uncomfortable for many firearms, if you are generously endowed you risk corrosion from sweat accumulation on hasps, clasps or even the firearm itself.
it's worth mentioning that a "disposable" purse you're willing to shoot through is ideal if you are going to purse carry. it's one less step between you and bullets downrange. the absolute forefront on your mind is a purse is an obvious target for theft or leaving somewhere. others in this thread have stated similar things. i should also mention that it might be tempting to purse carry with a loaded chamber, however this can be an issue if your purse is crowded and there is always the risk of unintended discharge if something gets caught in the trigger guard in a way that can depress the trigger. for at least one woman i know that purse carries a revolver, she has a small pocket in her purse that is exclusive to the revolver - it's completely empty otherwise and has sewn-in kydex sheets to prevent a lipstick case from wedge into the pocket.
