Much like selling my reloads (which I will not) I do not offer this advice as a go for anybody else, however, it has worked for me.
First you have to remember that most of my reloads are cowboy type loads 38spl with 3.3 Grains of Winchester 231 behind a 125 Grain Bullet, either RNFP or FPs. During the past year primers have been in somewhat short supply (I think we can all agree on that) and I have used several brands to include Federal Small Pistol, Federal Magnum Small Pistol, Winchester and Remington, all with very good results and very little change in velocity and recoil. I have always gone on the idea that the main difference in regular and magnum in small pistol primers is about .2 grains of Winchester 231 and since my loads boarder on the "Mouse Phart" side of the equation have not worried too much about variation of primers.
Now, having said that, I do load a fair amount of loads that meet power criteria for CORE and IDPA matches and use 4.4 Grains of the same Winchester 231 behind 158 Grain RNFP bullets and on these I only use Federal Primers to both keep pressure constant and because I have springs in my GP 100s that do not like Winchester or CCI primers.
Now that components are getting a little easier to find perhaps I will again become more picky as to staying with one primer brand but for the past year I have even used CCI reclaimed from years old PPC ammo that I have pulled for Practice.
Perhaps some will cringe with my statements, however, at almost 62 years of age and 36 of them going to the range on a semi regular basis, I still have both hands, all ten fingers and both eyes. I am either lucky or doing SOMETHING right.