My 7mm08 and .270win all range within a 0.001" ES prior to and post full length sizing (0.002" shoulder set back) using RCBS dies. So a range of 0.004" does sound off, especially with a Forster die. Must be the hand press to blame!
Best get that bench press mounted ASAP or have a play with some old cases to find out how much pressure to get consistent results on the hand press.
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