The Stalye Bullet and Headspace Gauge Comparator Kit is a useful instrument that allows reloaders to assess bullet seating depth and case headspace with precision and consistency. With 14 bullet inserts ranging from.172 to.458 and 6 headspace bushings (A.330 to F.188), this all-in-one package covers a broad variety of calibers, making it simple to establish consistent loads and increase the life of brass. The dual-screw construction ensures a snug fit on most digital calipers, allowing you to take measurements without using a third hand.  Each piece is composed of sturdy aluminum alloy and has a strong anodized coating to withstand frequent usage. Color-coded inserts make selection and organizing easier, and the included storage container keeps everything neatly in place. Whether you're fine-tuning your setup for target shooting or hunting, this package ensures your ammo is manufactured with care and accuracy from the outset.