Forming 6mm-06 case Problems?
A few of you may remember that I am having a 6mm-06 Ackley built on a Mauser 98 by a local gunsmith. Seems like the poor fella doesn't think the reamer will cleanup the 243 Win chamber on the A&B barrel. I assured him that it would since my pal that owns the reamer did a H&R single shot by hand, and it looks clean as a whistle. Anyway, he is wanting a round to test fire, and since I had ONE 25-06 in my case collection (with many more coming [img]/ubbthreads/images/graemlins/wink.gif[/img]) I went to sizing and loading one test round for the Doubting Thomas 'Smith.[img]/ubbthreads/images/graemlins/grin.gif[/img] I've never down sized a neck on a wildcat, only upsize (my 6mm PPC). I used Imperial Sizing Die Wax on the neck and made a few passes into the FL die, until the whole neck was 6mm down to the shoulder. My problem is that when I made the four mini passes to dial in the die, the neck's EDGE got a bit lopsided, scalloped, if you may. [img]/ubbthreads/images/graemlins/blush.gif[/img] So then just for formality, I trimmed the neck to an even length (didn't measure, just evened it up). [img]/ubbthreads/images/graemlins/frown.gif[/img] I then passed the shell over my 6mm mandrel die that I use for changing .220 Russian brass to the 6mm PPC, and loaded it with a Federal Magnum 215 Match primer, 53.5 gr. RL-22, and a 107 gr. Matchking and seated it to the length of the Mauser's box (should be plenty enough to form a good 40 degree shoulder). One test round ready to go.[img]/ubbthreads/images/graemlins/cool.gif[/img]
So here's the question: How do I properly downsize the 25-06 brass without having the scalloped edge. Was it the fact that I made multiple passes to get the die set correctly? Or, maybe the fact that it was the first application of the Die Wax? Any tricks of the trade would be appreciated! Also, when downsizing necks, do I need to get an inside neck reamer (supposedly gets rid of the "doughnut at the base of the shoulder---on the inside)?[img]/ubbthreads/images/graemlins/confused.gif[/img]
THANKS for any info you could provide. [img]/ubbthreads/images/graemlins/smirk.gif[/img]