PMC`s work fine for a few of us at our club and never a misfire . $17 per 1000 last time we bought them . I`ll never use Winchesters again for personal reasons since a batch or 5000 were bad and the cheap way they addressed the problem . Gave me 2 - $5or$10 discount coupons that when returned , Winchester wouldn`t make good !!!
If you're going to replace Winchester primers entirely with something else, the Rio primer is a good deal. Just a tad hotter than Winchester; there is data for it on the Rio web site. Rios will stretch the primer pocket so those hulls must stay Rio. Rios want a drop of a 1/2 grain in a 17.5 grain load of Clay Dot under a Figure 8 wad carrying 1 1/8 oz. of shot.