Hi all,
I'm looking to neck up .243 brass into 7mm-08 brass.
I have dies for both and put a couple of cases through to test the waters. They size up, but it's quite difficult to do... A lot of force is required.
Also I do notice that examining the necks, it appears to not quite be even on some. Once side of the neck is just noticeably thinner, like a weaker bit of the neck doing more stretching than the rest.
There are no dies in the middle of these to use and an intermediate step right? I know if guys are going from something like .308 down to .243 they might use a 7mm-08 die in the middle to do it in smaller steps.
Since that's the case, any advice for resizing this more consistently without a middle die?
Thanks.