I need some collective wisdom. When I first got my dvc open I had failures to eject like others. I sent it back and also paid for a minor tune,which is setting it up to shoot minor loads with a spring change. When I got it back it worked for both major and minor loads. Fast forward about 3000 rounds of each through it and now I am getting failures to eject again with major ammo only,the minor goes bang without a hitch. The only thing that I did was to change bullets from Acme rn to Eggleston flat point.I was first thinking maybe a weak recoil spring for the major loads but it only has 3000 rounds on it.Yes I clean it regularly. For those who want to know more the minor load is 3.1 tite group with a 147 extreme 1.140 and the major load is 6.8 autocomp wit a eggleston 124 flat point at 1.165 Thanks Tim