Thread: RCBS Dies... Problem?

Has anyone had trouble with RCBS dies? I have a set (FL sizer and seating die) that I bought a while back as I thought they might be a bit better than the Hornady New Dimension dies I was using. Haven't done any reloading for a while and have sold my Hornady dies. Got the new ones out yesterday and sized some brass (all Norma once fired, 270wsm)
It seems the last 3 or 4mm of the stroke requires a fair bit of effort to size the case, and then it feels tight still on the upstroke (removing case from die)
I cant find my micrometer to measure the cases, must have misplaced it during shifting, will get another today and see if I can find any odd measurements. I never had this problem using my Hornady dies (wsm/saum cases always seem to use a bit more effort than a 308 boltface case but this is ridiculous!) and my loaded ammunition always chambered nicely, chambered a few of the sized cases from this latest batch and theres excessive resistance when closing the bolt which is strange as with the effort I was putting into sizing them I would have thought they would be slightly under sized if anything. Any thoughts?

Edit to add: have inspected inside of die to check for a rough chamber and cant see anything, cases dont have any strange marks.