RE: Winchester 209s
 

I have used them in both shotgun and muzzleloader for around 4thousand rounds and had one misfire. What kind and type of gun are you using? If its a firing pin or hammer problem winchesters I believe are among the longest 209 primers and changing to a different brand might increase the problem. There is also a possability of a weak spring especally in certain brands I have helped one of our club members out with that problem before. Lee