i dug around for info on that very topic...
quality control is the biggest thing...
im shooting nothing but Federal 210 Match primers...already got a good stock of them...
ive heard mixed reports...some guys see a difference in certain rifles...others no difference...i'll stick with them just for piece of mind and better quality control...
atleast in my rifles...my AR and pistols will likely get regular primers as a misfire or whatever while punchin paper isnt a huge deal...bad primer when a big ole buck is in my scope will have me upset...and i do realize it can still happen with match primers...but better quality control should mean the chances are much slimmer...