I'm shooting a factory Remington 700 barreled action ( aac sd- tactical) 6.5 creedmoor 22" heavy barrel, cheap brake off ebay, ewg 20moa rail, athlon argos gen 1 6-24x50, bell and carlson long range hunter bedded myself, timney calvin elite set to 1.75 lb. or so, and a caldwell xla bipod. So far its had 266 rounds of spark munitions through it and cleaned regularly. The first box I had was 147 eldm and I had a low powered load in the box. It had enough to push the bullet out but I heard it fall between me and the 100yd target. After the 147s I started shooting the 140 eld-m. Nothing but good results till this last box and I had 2 within the first 10 not chamber. It seemed like they were headspaced too long because the shoulder had scratches on it. I contacted their Facebook page and received a prompt reply, mind you it was 10pm my time (cst) and 11pm their time in PA. Over the course of a couple days the stayed in close contact with me and decided the best course of action was for me to test each round in my rifle and see how many wouldn't chamber and they would replace them with 100 rounds. There was 3 more in the box that the bolt would not close on, so 5 all together. I recieved 2 full boxes of 50 in today with a label to send my others back at no cost to me. I'm beyond impressed with how they've been and want to publicly give them the credit they deserve! My rifle is shooting the 140s around 2575 over the magnetospeed with an es of 40 and sd of 17 I believe it was. It's a soild .6-.75 moa round in rifle. Below are some groups iv shot with it. The silhouette was at 765 and I couldnt see it real well through the grass. Sent 10 rounds at it and connected with 8 (first was to find my dope). Paper target at 200y and square plate at 410y. Overall really pleased with them and if you're on the fence give em a try!