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Wednesday, April 4, 2012

Magnum Super Match Interdiction

Superformance ammunition achieves the highest performance of any ammunition on the market today; 100 -200 fps over SAAMI standard, in all calibers, all bullet weights and all bullet types, including monolithic bullets like the Hornady GMX bullet. This performance is achieved by revolutionary new, extremely efficient powders optimized for each load. These powders produce very high performance yet do not produce excessive recoil or compromise accuracy. This performance is achieved because the powder is completely burned prior to the bullet leaving the barrel and imparts as much energy as possible to the bullet. As a result, the muzzle exit pressure is lower and the muzzle gas velocity is dramatically lower than for previous high performance ammunition. This reduces the rocket nozzle effect from the gases leaving the barrel, resulting in lower recoil levels and high levels of accuracy.


 In the past, small arms performance has been limited by the powder’s ability to completely burn by the time the bullet exits the muzzle. To attempt to get higher performance, high charge weights of a slow burning powder were used to attempt to maximize muzzle velocity. Powders were not progressive enough to allow these heavy charges of slow powder to be completely burned by the time the bullet left the muzzle, especially with lighter weight bullets. The end result was very modest increases in velocity with heavy recoil and many times unacceptable accuracy. Superformance powders solve this problem because of their ability to completely burn by bullet muzzle exit. All loads are designed to fill the cartridge case. Yet, because of the efficient burning characteristics, virtually all the powder is burned by bullet muzzle exit.


This results in a much higher percentage of the available powder energy being transferred to the projectile, rather than being blown out the end of the barrel as unburned powder, producing higher velocities with a smaller charge weight. This also results in lower muzzle exit pressure and lower velocity of muzzle gases. A very useful by-product of the highly efficient burning nature of these powders is very small velocity loses with shorter barrel lengths. We tested a 300 Winchester Magnum load by firing it in a barrel that had been shortened to 20 inches. The Superformance ammunition gave up an average of only 18 fps per inch. This is roughly 1/3 to 1/2 the velocity loss per inch of barrel length that would be experienced with conventional powders in a 300 Winchester Magnum.


Superformance propellant design also produces very uniform performance in extreme weather conditions. Most Superformance loads lose very little or no velocity at low temperature and gain very little or no velocity at high temperatures. The performance and point of aim will not change drastically in extreme temperature situations. For a Superformance 30-06 150 gr SST load the performance was as follows; +70 deg F: 3,071 fps @ 56,800 psi; +140 deg F: 3,128 fps @ 61,400 psi; -15 deg F: 3,022 fps @ 58,100 psi. From the African plains to the freezing Arctic, Superformance will deliver consistent performance.


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