![]() ![]() Power factor is defined by bullet weight times velocity divided by 1000. Nine Major (or Major 9) is a term used by competitive shooters who load 9mm Luger ammunition to meet a specified power level required in USPSA/IPSC competitive shooting sports for Open Division pistols (usually having a compensator and optical sight). They were not as tight as new cases, but they were not loose.Ī second high pressure test was conducted by loading cases to 9 Major performance levels. The +P load was fired four times in the same NAS 3 cases. This load clocked at 1277 fps from my 4.6-inch Lone Wolf barrel and 1295 fps from my 5-inch Kart barrel. The Western manual indicates that this load produced 38,373 psi and 1197 fps in their 4-inch test barrel. This was a 115-grain jacketed bullet seated to 1.1-inch over 6.2 grains of True Blue powered with CCI 500 primers. The first high pressure load was a published +P load in the Western Powders manual. The durability of the NAS 3 cases’ primer pockets was tested by firing high pressure loads in new cases then re-priming them to assess how “loose” the primer pockets were. Shooters who load 9 Major for competition, where the pressures can easily exceed 9mm +P pressures, can end up with loose primer pockets after just a couple of loadings. Brass cases, when loaded to very high pressure, can, in just a few uses, end up with loose primer pockets. I wondered how the primer pocket in the NAS 3 case’s aluminum head would hold up to very high pressure. If the pressure is too high, the primer metal will show signs of stress by flattening and flowing, and the primer hole can be stretched, making it too loose to be used again. We often think the powder chamber contains the bulk of the peak pressure, but the pressure also pushes back on the primer through the flash hole. This caught my eye, and one of the things I wondered was whether they could be used for very high pressure loads such as 9 Major. Shell Shock claims they are stronger than conventional brass cases and have a 65,000 psi pressure rating. The sizing die can be used with regular brass cases, as well. The cases require lubrication for the sizing stage, even though the special sizing die has a carbide insert. Reloading NAS 3 cases is no different than loading brass cases, with the exception of requiring a special sizing die and flaring die made by S3 Reload. They are 50 percent lighter, less abrasive, self-lubricating, corrosion resistant, and won’t split, chip or crack, and they’re magnetic so you can pick them up with a magnet. The Nickel Alloy Shell (NAS 3) cases have purported advantages over conventional brass cases. Shell Shock Technologies’ new cases are made from two separate components, one nickel alloy steel and the other aluminum. ![]()
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