Is there any way to reproduce a .30-03 cartridge from a .30-06? I have a RIA 12-05 barreled receiver that has a TE reading of 7. I used a Forster No Go and Field gauge set to check headspace and it passed. MW is 3.5 with has a dark bore and strong lands and grooves. The barreled receiver seems to be a Sedgley rebuild. Can I make one of these rounds as a dummy to check if the barrel is still in this caliber? If so how? I have read that this case was the forerunner of the current .30-06, which is just trimmed .07 shorter with a 150gr Spitzer bullet instead of a 220gr round nose. What dies would I be able to use?
I looked to see if there are any for sale and the ones I found were REAL expensive. Any info is appreciated.
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