Guys I have a BCM 11.5" upper that has shot 1000's of troublefree rounds of any type of ammo I've fed it to include Tula and Wolf. A few weeks ago I had a DD Lite 10.0 rail and DD LoPro gasblock installed and today was my first time getting it out to re-zero. Funtioned fine with various types of ammo except the Tula/Wolf which had several instances where it failed to feed jamming on the feedramp at a 45 degree angle.
Any ideas what may have changed during the rail install to cause these issues?
FWIW, I'm also running an ST-T2 buffer an Tubbs Flatwire Spring. Any help/suggestions would be appreciated as I'm a bit disappointed that an upper that had been 100% since day one is now having issues.

