Should I Neck turn my brass?

Should I Neck turn my brass?

Norma and Nosler brass are also superb but can sometimes benefit from neck turning. Basically every other manufacturer’s brass exhibits significant neck-thickness differences and—if your barrel and chamber are accurate enough to realize the benefit—will improve by neck turning.

What does a neck turning tool do?

Designed for use on a wide variety of case lengths, the Hornady® Neck Turn tool allows for the use of a drill (not included) to make neck turning faster and easier, while providing superior consistency and surface finish. An adjustment knob enables the user to choose detents for .

What causes donuts in Rifle brass?

The simple answer is: Your brass is thicker the farther down from the mouth you go. Neck turning only gets rid of some of the fatter stuff from the outside of the neck, and the shoulder material eventually ends up working its way forward, thus giving you a donut.

Does neck tension affect accuracy?

Over the years, we have periodically experimented with increasing neck tension to possibly improve accuracy. In testing with machine rests at 300/600 yards, accuracy often deteriorated as neck tension increased; thus, 0.003″ expansion (from sized neck to loaded neck) is where we usually start. Using the .

What is a Doughnut on a rifle case?

correct way to turn brass. The length of cut on this case is too short. It will form a “Donut” when fired. The “Dreaded Donut” formed when the turned portion of the neck is too short.

Does seating a bullet deeper increase pressure?

Seating a bullet against the rifling causes pressures to be elevated noticeably higher than if the bullet were seated just a few thousandths of an inch off the rifling. A very common practice in precision reloading is to establish the COAL for a bullet that’s seated to touch the rifling.

How far off the lands do you seat a bullet?

Most bullets shoot most accurately when seated to within . 035 inch to . 015 inch of touching the lands. Many benchrest shooters like them just kissing the lands.

Does annealing brass improve accuracy?

When done right, annealing extends brass life and makes neck tension more consistent, something very important for accuracy. There is plenty of evidence that annealing works. Just look at your new Lapua brass–those rainbow colors on the necks are artifacts of annealing.

Does seating a bullet deeper increase velocity?

Figure 1: When the bullet is seated farther out of the case, there is more volume available for powder. This enables the cartridge to generate higher muzzle velocity with the same pressure.

What is the purpose of a Cannelure on a bullet?

Function. In the Minié ball the purpose of the cannelure is to hold a lubricant. Cannelures for this purpose are commonly called “grease grooves” or “lubrication (lube) grooves” or just “grooves” by bullet casters (see the glossary of firearms technical terminology maintained by SAAMI).

How often should I anneal my brass?

Annealing should always be done before resizing. This eliminates spring back, and ensures repeatable and accurate shoulder bumping and neck sizing. Annealing should be done every reload.