Hey sorry just saw I was tagged in this post. I had 280ai and loaded for it. I've got a new box of Hornady 162gr factory 280ai ammo here that you could try. I've had light strikes before in 338 and changed primers and fixed it (after trying different brass, firing pin etc).
But if you want to try the factory ammo to see if that works ok, let me know. Cheers
Bookmarks