ok guys, I am looking to the masses for help here. I have a 7.5in SBR that FTE and is very ammo sensitive. The gu FTE to extract with almost every brand of ammo I have put through it. I have read everything I can fing here on the subject and keep coming up with the conclusion that it is overgassed. Here is what I am running:
Spikes Tactical lower with RRA parts and 2-stage trigger, Magpul CTR, DPMS Heavy buffer, Wolff extra power recoil spring.
Upper is RRA A3 with a Rainier Arms (WOA?) barrel, Noveske KX3, Vltor gas block, Les Baer Chrome plated SS National Match carrier, LWRC Chrome bolt with dual spring lobster tail extractor. (added extra spring to increase tension)
I have run Remington, Federal, Seller & Belloit, Winchester, Hornady TAP, and some foreign brand. All FTE. I have run XM193 through it with about 80% reliability.
I am at a complete loss. Any suggestions as to what I can do to get this thing to run a wider variety of ammo? I have tried a standard bolt with a D-ring, and still have the same issues. When the gun runs, its a blast to shoot. It fails more often that it runs to the point I am ready to give up on it. The KX3 made a big difference, but not enough to increase the reliabilty. Any suggestions would be appreciated!
Thanks!!