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couple of ?'s

High Binder

Resident Tribologist
Full Member
Minuteman
Jun 18, 2008
493
25
Occupied Colorado
Hey guys, I've been neck sizing the whole neck but I'm wondering if I should just be sizing down to the seating depth, i.e. not all the way down?

What if any problem am I going to run into by not seating my bullets at least the depth equal to the OD of the bullet (308)?

What's a good soap/whatever to use in an ultrasonic cleaner. My cleaner is a super nice ($1200) little cleaner with heat and all that...

Thanks in advance!
 
Re: couple of ?'s

No need to size the entire neck, in fact bushing dies usually leave a small amount unsized. I would think this would help seal the neck but this may be crap.

I just got an ultrasonic unit - go search on 6mmBR.com. I used the 50% vinegar followed by backing soda solution (the "cheap and clean" formula). Works just fine.
 
Re: couple of ?'s

Most benchrert shooters only size .200 or so. But they don't feed from a mag. The only issue I see with seating that long is durabilty of the rnd. They might be fine if single loading from a box at the range but you'll have problems in other conditions
 
Re: couple of ?'s

I 'short size' my necks regularly, until the shoulder grows and needs a bump. The way I determine if I've 'shorted' the neck too much is to grasp the bullet between thumb and forefinger and try to twist it around in the neck. If it <span style="font-style: italic">will</span> budge, the necks need to be sized 'deeper'.

I also doubt the wider portion of the neck will help seal it, but I <span style="font-style: italic">do</span> believe it will help center it in the chamber. Personally, I have my doubts about the effectiveness of achieving near-perfect concentricity with a case/neck/bullet that simply lies loose in the bottom of a chamber neck that it's sized several thousandths smaller than.

Greg
 
Re: couple of ?'s

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Greg Langelius *</div><div class="ubbcode-body">If it <span style="font-style: italic">will</span> budge, the necks need to be sized 'deeper'.
</div></div>

GL, could you explain the "budge" a little more? Do you mean if you can twist the bullet around inside the neck?