Alpha 30BR brass

[SeabeeKen]

Brunos says 2-4 months but can backorder

 

[AlNyhus]

For neck thickness, .012 would be a good number. Rounding the bullet diameter up to .3090, that would give a .333 dimension over the bullet pressure ring. Either a .335 or .336 neck reamer would be good 'no turn' fit. For the popular .330 and .331 neck diameter reamers, a .012 neck would let you do a nice light cut while still getting a full clean up (assuming the necks would be a consistent .012).

For case length, 1.500 would be the easy button to fit most 1.520-ish chamber lengths.

Personally, I'd take a longer neck length (1.540 or so) and then trim the neck length back to fit my individual chamber length for a true custom fit. Most don't actually measure chamber length, though...relying on the reamer print.

Good shootin' -Al

 

[Ccrider]

I think the neck thickness should be designed around the most popular reamer being used for the 30br——— a no turn for the Robinet reamer.

Rounding the bullet diameter up to .3090, a .010 neck would give a 328 finished round—adequate clearance for a 330 or 331 no turn.

The longer neck length would allow one to trim to desired length.