In a handgun it's beyond a "good question", it probably doesn't have a good answer. I've used all brands of primers over the last twenty-five years where there have been "shortages" and in order to shoot you simply purchased what was available. During those years of scarcity, I've used Match primers in handgun loads where I substituted them for other brands of primers (except magnum). I am something of an accuracy fanatic when shooting handguns and I've had some really, really accurate handguns. I've kept pretty good records of loads and results over the years also. I have to say that I've never found the primer to be the Red X when it comes to finding that significant component that made or broke a load. In fact, it rarely made any discernible difference. You'll get much more for your effort if you do a good job of cleaning out your primer pockets and make sure your flash holes are uniform. The only primer differences I can note over time are using (or not using) magnum primers with some powders. That can show up in group size when measuring a number of five shot groups and averaging the results. Sometimes you need a magnum primer and sometimes it does nothing (talk about accuracy, not pressure). Right now I'm sitting on a bunch of Federal Match rifle primers that I've been playing with in both of my High Walls and comparing them to the same loads using other primers. Sometimes switching primers makes a bit, albeit it small difference in groups. Most times it doesn't. In a handgun it simply won't show up. The key word in primers is called brisance, the length and heat of the flame when ignited. They are not all the same, even within their designation as either magnum, non-magnum, or match. Anyway, just use what you got for any loads not calling for a magnum primer and you'll have no problem.
