Why is bullet seating important?

Bullet seating is important because it allows you to create the most optimal precision shooting results by customizing your hand loaded ammunition to tailor-fit your specific rifle. This is one of the major benefits of hand loading. Find out more about hand loading here: https://bergerbullets.com/reloading-data/

Why do we not list our cartridge COAL in CBTO of our loading data?

The reason that the CBTO is not listed in our loading data is because different bullet comparator tools often provide different measurement results from the same bullet. We encourage the measurement of CBTO rather than COAL whenever possible, as it will vary much less measuring from the bullet ogive than from bullet tip: https://bergerbullets.com/wp-content/uploads/2013/03/COAL.pdf  

What is CBTO?

CBTO (Cartridge Base To Ogive) is the measurement of a cartridge from the ogive of the bullet to the base of the cartridge length. This measurement is used when you are doing bullet seating depth testing: https://bergerbullets.com/vld-making-shoot/

What is COAL?

COAL (cartridge over-all length) is the measurement of the cartridge from the tip of the bullet to the base of the cartridge. The cartridge over-all length is an important dimension to understand, especially if functioning hand loaded ammunition through a firearm magazine. https://bergerbullets.com/wp-content/uploads/2013/03/COAL.pdf

What are the benefits of loading a cartridge long?

The benefits of loading a cartridge long is that you may tailor the cartridge dimension to more closely fit a specific firearms’ dimenstions. This is a technique often used by many competitive shooters and accuracy enthusiasts to improve accuracy as part of the tuning process. https://bergerbullets.com/effects-of-cartridge-over-all-length-coal-and-cartridge-base-to-ogive-cbto-part-1/      

What is CIP?

CIP is the Commission Internationale Permanente that provides standardized rules for proofing weapons and ammunition for participating countries.

What is SAAMI?

SAAMI stands for Sporting Arms and Ammunition Manufacturers’ Institute. SAAMI provides max pressure, cartridge dimensions, chamber dimensions and many other commercial guidelines so that both ammunition and firearm manufacturers may standardize their products.

What is a Hybrid Ogive?

A Hybrid Ogive blends the best aspects of the tangent and secant nose shapes into one Ogive. It starts at the bearing surface with a tangent section that will align itself more effectively when the bullet contacts the rifling. Beyond this section, the shape transitions into a secant section which is proven to be more effective in the wind. The result is a high BC bullet that is easier to tune.

What is a Secant Ogive?

A secant ogive is an ogive that tapers more gradually relative to its length than does the tangent ogive and touches the curve at two places, which provides a higher Ballistic Coefficient (BC) and less drag.