40 S&W /10mm Auto Seater Die by REDDING RELOADING PRODUCTS Product Overview offers the 40 S&W /10mm Auto Seater Die. This seater die is designed specifically for cartridges that require a taper crimp. The 40 S&W /10mm Auto Seater Die is precision ground to exactly match bullet diameter. Alignment and accuracy are enhanced by the cartridge case and bullet being completely supported and aligned in a close fitting and precision ground die interior before the bullet seating begins. Redding tests have shown that seating the bullet to the correct depth and taper crimping as a separate operation will produce the best accuracy. Specifications and Features Taper Crimp Precision Ground Case and Bullet Supported *Please note* All defective returns must be made through Redding directly. You can visit their website by Clicking Here or call them at (607) 753-3331.