Here is how The INFINITY APS Die is Made. The Cartridge Base Insert Taper and the Center Bore of the die body are the heart the Infinity Die’s ability to produce extremely concentric ammunition. The inside bore of the die body is drilled, then single point I.D. turned, for utmost concentricity. Next the inside bore is precision bored for a consistent, smooth surface finish. All parts are precision single point turned and bored to minimize part runout in the assembly.

Here is how The INFINITY APS Die Works. The Cartridge Shoulder Centering Sleeve and Precision Bullet Seating Stem move up and down concentrically inside the Infinity Die Body, properly guiding the cartridge shoulder and bullet to the center axis of the Infinity Die Body. Next the Cartridge Base Insert shoulders up with the matching angle in the bottom of the Infinity Die Body, squaring up and concentrically locating the cartridge body.  Lastly, the arbor press ram comes down and pushes the Push Rod down until the Threaded Internal Stop precisely limits the travel, seating your bullet.

“The” Seating Die can properly seat 20 cal, 22 cal, 6mm, 25 cal, 6.5mm, .277 cal, 7mm, 30 cal, and 338 caliber jacketed and solid turned bullets!

BULLET SEATING STEMS

Model 1: Works best with 20 cal to 6mm bullets.  This stem is made for the 223 Based cartridge centering stems