I have a TC R-55 17HM2 Sporter that had 2 pretty significant out of battery misfires last time I shot. I’ve only put a few hundred rounds through it and never had anything like that before. Blew the magazine out and broke the spring. Both were with the same box of Hornady 17 HM2 ammo. Ammo problem or Rifle problem? Sources for a new mag spring? (Old stock mags are $150). Email S&W (own TC now) or Hornady? Having trouble uploading photos, but will off my computer. Cases are completely blown out.
