fguffey

RWK, dies are a finished product, to change the die configurationcan dull your tools, die blanksare available from RCBS for $28.00 - or - a few if you have a reamers. Universal Improved/Wildcat dies have been made for over 40 years, I should say the makers of universal dies did not make it to the INTERNET.

To make sure I understand the question, the throat is part of the chamber, the die controls the dimensions of the case including the neck diameter inside and out, to increase the neckdiameter of the sizing die only, a reamer is required, make the best deal you can, some consider the reamer expensive, and if considering a chamber reamer, the die must allow the reamer to center on the pilot end of the reamer, meaning the reamer must pass through the die that is if the reamer will remove the material.

Dies are available for necked-up/necked-up versions of a parent cartridge. I went to the Dallas Market Hall gun show week before lastlooking for anything 280 Remington, 7MM and 338, I got lucky, I found a 3 dieset of 338 Winchester Mag dies(RCBS) with a neck sizer (C&H) and a 2 die setfor280 Remington (C&H), both setsfor $25.00, the neck sizer would cost that much, the point is, a set of dies for a rifle I chambereddoes not exist, rather than grind, cut or ream the dies with tools I do not have or can not afford to dull and or brake, I will cut the dies with a cut off saw, then butt grind them, the 338 Winchester Mag neck sizer die will be left as it is, the 280 Remington die will be cut offabove the shoulderand ground to allow it to be used as a sizer die forcases usedwith a chamber similar to the 338/06, the neck portion of the 280 die will not be used, just opened and polished. For what I spent, I still have a 280 Seater die and a 2 die set for the 338 Winchester Mag, grinding a die, I have an in-line, angle and butt grinder with coolant to keep the the dust down and metal cool.

F. Guffey