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The .280 Ackley Improved (.280 AI) was the result of the .280 Remington case modification by P.O Ackley, who pushed out the sidewalls at the shoulder to near parallel and steepened the shoulder angle to 40 degrees in order to increase powder capacity, thus along with increasing the allowable pressure, resulted in increasing the bullet initial velocity by approximately 100 fps.
The 6.5-284 has been used extensively in benchrest competitions and is known as an extremely accurate long range round. Using an improved version of the 6.5-284, Rich DeSimone set a 1,000-yard (914.4 m) world record with a 1.564-inch (39.73 mm) group. [ 4 ]
The demonstrated accuracy from a Mann barrel was very poor, with an extreme spread of 43.6 in (110.7 cm) at 600 yd (548.6 m), compared to the 16 in (40.6 cm) of the T65, the armor piercing (AP) round would have trouble reliably penetrating a standard US M12 protective vest at 800 yards (something the T65 Ball round could reliably achieve), and ...
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Before and after photos of the deadly wildfires in the Los Angeles area have sent tens of thousands scrambling for safety and decimated neighborhoods.
Experian accused of violating Fair Credit Reporting Act by reinserting disputed information back into credit reports.
She is only 5 or 6 years old, a very active German Rottweiler and Black Mouth Cur mix, and about 80 pounds." It is hard to suggest a treatment without knowing the cause of the cancer.
The .284 Winchester was designed to achieve .270 Winchester and .280 Remington performance from the new Winchester Model 100 autoloader and Winchester Model 88 lever-action rifles. The result was a 7 mm cartridge with about the same overall length as the .308 Winchester but with a wider body, that yields a powder capacity about the same as that ...