Guys, you are only reading part of the threads. There was a hefty dent in the primer on all of the rounds that didnt go. Believe me it is not the gun as my gunz are ALWAYS spotless. I dont oil my gear like alot of others (drop here drop there) I take them down to parade rest and wipe each piece with an oily cloth so "buildup" isnt an issue. The ammo was less than 1 year old as I shoot alot and cant seem to hang onto it very long. That is another reason I have started reloading. The ammo is always stored in a 50 cal military box with desicant packs in a conditioned space. With the 35's the lot numbers were not the same but had 3 out of 1 box and 2 out of another. The 270 rounds were out of 1 box. Prior to this I had access to ammo on the dealer level and had 25 boxes (this lasted 3 years) of the PMC in 35 Remington. Sure wish I could have that back as it shot great out of all 3 of my 35's and its the cheapest ammo available, I paid less than $8 a box and never a misfire in those. I dont have a set of go-no go's but I dont think its a headspace problem or I should see some signs in the brass during the measure/inspect process prior to the reload, all 3 are pretty much the same. Again all the rounds had very good pin hits. Whatever, you will NEVER see remington factory ammo in this house less the 22 rimfire.