I had a number of issues with Winchester primers. A number of Failure to fire and pitted one boltface as well. I tried Federal and they were very inconsistent for me. So I tried CCI and have had very good success with them in all of my rifle and pistol applications for the last 10 years as well as they seem to fit the primer pockets the best. At any rate I have developed a trust with them and prolly won't be changing anytime soon unless issues were to develop with them. YMMV
