My match rifle is having some serious issues. When it was a fresh new build, it shot .3's all day. After 1300 rounds now it won't shoot better then 1 moa, most of the time it's 1.2 moa. It's an X Caliber blank fit and chambered by a good smith. Had Benchmark run some bore paste down to get it totally clean. Checked my load and good sd/es still in the node. I haven't changed seating depth after chasing lands 5 thow. I'm at my wits end with this barrel. I have changed everything on thecrifle to insure it wasn't the scope or chassis. Anyone else have a barrel fail 1k rounds early?