so if Ive got this right...and Ive re-read it 3 times to try and do so.... you have created a stretched 7x57 and have in effect done nothing more than made the case body 3mm longer but maintained the same diameter at shoulder so a SLIGHTLY less taper to the body????
if you used fireform load and a 7x57mm case you would end up with right case but neck that was very short????
my thought on using a 270-280 case is the tip wont have to be worked much at all....but your 25/06 case shows it will work,the fatter neck to begin with may eliminate that wonky look,but agree with Brian it will dissapear on first fireing...I made some 25/06 out of 270 and had similar thing.
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