I am currently building a 243ai and am ordering dies but don't know which set of neck bushing to buy for the redding neck bushing dies. I will be using 243 lapua brass with either 105 amax or 107 sierra's.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 7mmRM</div><div class="ubbcode-body">.270 or .271 </div></div>
This is spot on for Lapua. I would use the 270 for moly and 271 for nekid. Mine measure .273 for Lapua brass and moly 105 AMAX. These are unturned, new brass.