Hello all,

Started loading for my 30-06 (m1917). Bought a Lee ultimate set to reload for it. I have a neck sizing set for my .303 and that works perfectly.

This 30-06 one however, so far is not much more than a paperweight. I've deprimed/sized a few cases now and so far it does not size the neck at all, the bullet I'm using is a 150grn fmj and measures at .308". I measured the mandrel inside the die and that measured something around .304".
I'm putting plenty of force on the press so that's not the problem. Really stuck here.

I tried to use the full length sizer in the set also, but so far that's destroyed 3 cases, even though I've lubed them!

Any help would be awesome. Cheers
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