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Auction:13628144 LSB#: 150828BB11 Make: Sportco made by Omark in Australia. Model: 44 Serial Number: DG975 Year of Manufacture: Post 1960’s when Sportco was b. Looking for an sportco/omark 308 to start shooting in f classFairly new to shooting. Serial numbers tell the models apart. 2 letters and 3 numbers are the. Newbluefx bundle 3 0 keygen mac.
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Wow, that's utter BS.
I guarantee you all the other competitors are ignoring that rule. Once upon a time the 7.62x51 was spec'd to 50,000 cup. In a manual it was listed as 50,000 psi copper. During a revision someone dropped off the 'copper' and it became 50,000 psi. The 308 Winchester, having been accepted by SAAMI and CIP used the more modern piezo resistance method to determine pressure, and measured chamber pressure up to 62,000 psi piezo. Now, a milspec 7.62x51 M80 round launches a 147gr projectile around 2,750 fps (depending on barrel length) meausred 78 feet from the muzzle. A 308 Win launches a 150 gr projectile around 2,800 fps measured 15 feet from the muzzle. Obviously if the charge weights are the same, and muzzle velocity is the same, then pressure should be about the same too. Anyways, you see the same 'mistake' with 30-06, which is SAAMI spec to 60,000 psi, and the 7.62x63 (metric equivalent) is spec'd to 50,000 psi copper. In a bolt rifle none of this makes a difference, it is only in M1 Garands where port pressure becomes an issue which dictates using a powder with the correct burn rate and a projectil between 150 and 175 grains. Jimro
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