Friends. I load for the 35 rem also. I have eliminated the case head separation issue by adjusting my resizing die to NOT touch the shoulder. I did an experiment once where I took one 35 rem case and reloaded it with a full power load and shot it. Took the same case back to the reloading shop and loaded her up again full power and shot it (I shoot just behind my shop). I did that 15 times and gave up. No signs of case head separation what so ever. I do check the inside of my cases with a #9 crochet needed I stole from the wife. Just run the pointy side along the inside of your case and you can feel the annular ring if it is starting to separate above the web. I do this for every case before loading it no matter what the caliber. I had one case on a 308 separate upon firing and its something I never want to experience again. I have been loading 41 years and that separation occurred my first year of enjoying to reload. Sorry I rambled on.