Sorry Micky, sizing down that much will stuff up the entegrity of the bullet about .004" is all you can do, get a real calibre, lots of 7mm08 and .308's about
I see some one has started a thread on the .358 Win that is a real cast bullet calibre cast shooters in the States either have one or want one.
I fancy a 7mmTCU got a .223 700 that's lazing around gathering dust.
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