Get a primer hole tool to uniform the "punched" primer hole. This way the primer wil always fire concentric to the powder column.You also need a primer pocket tool to uniform the depth and roundness of the primer pockets as they are punched. Next, you need a neck turning tool to uniform your neck thickness as bullet tension will vary with ununiformed necks. Now get a set of benchrest dies such as from RCBS. The sizing dies will resize all the way down! The bullet loading die will have a sleeve to properly align the bullet and a micrometer to have uniform lenghts. You must measure the freebore to get the maximum lenght within a few thou of the lands while still able to use the magazine. The dies comes in a wooden boxe. You cannot load match grade ammo using a multistage press such as a Dillon! Every little step, makes a little difference in the group size and improves consistency.
