Heavy weights in standard length bullets

The most obvious use of tungsten powder in bullet design is to make heavy bullets that will fit into normal length chambers, feed through standard length actions and fit into normal magazines and revolver cylinders.

Because the bullet density is increased, and its length remains the same, the spin rate required to stabilize it does not change appreciably. This means a second benefit is that the normal twist rate of barrel should stabilize the heavy tungsten core bullet, whereas it would not stabilize a lead core bullet of the same weight (since the spin rate required increases with bullet length, and only incidently with the bullet weight because normally the density of material is not changed).

In addition to the savings in not having to purchase special barrels to fire these heavy bullets accurately, the normal length tungsten core bullets have the additional benefit of not wasting additional energy in spinning faster, and because they do not have to spin faster, they also have less problem with radial imbalances than a conventional heavy weight lead core bullet. It is well known that the faster a bullet is spun about its axis, the more centrifugal force is generated by slight imbalances in the jacket wall thickness, tiny voids or other anomolies of construction. If all else were equal,the bullet which can be stablilized with the lowest twist rate will tend to be more accurate, and this would be the tungsten core bullet. Typical uses might be 80-100 grain .224 bullets, 130-145 grain .243 bullets, and 200-250 grain .308 bullets for long range, high delivered energy hunting loads or stable target rounds, or extra-heavy handgun bullets that will not protrude either into the case or project beyond the standard cartridge length

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