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Long range barrel profile
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<blockquote data-quote="Bart B" data-source="post: 100261" data-attributes="member: 5302"><p>[ QUOTE ]</p><p>Goodgrouper and UncleB, maybe you know something I don't know. What's the typical 20-shot group accuracy you think someone could attain at 800 yards with one of those whippy, 30-inch long Palma barrels that's only about .800-inch at the muzzle weighing about 5 pounds?</p><p></p><p>Benchrest competition rifles shoot aggregates of several 5- or 10-shot groups that average about 1/2 moa at 600 yards and about 7/10ths moa at 1000 yards with their stiff barrels. And yes, these rifles sometimes shoot a single group that's smaller. How do you think a whippy, less stiff Palma barrel would compare? </p><p></p><p>[/ QUOTE ]</p><p>Well, Goodgrouper and UncleB, I guess you two have chose not to cross the "line in the sand" so I'll give you some facts.</p><p></p><p>In the late 1960s, a 13 pound .308 Win. on a Win. 70 action was tested at 600 yards. 40 consecutive shots went into 1.9 inches.</p><p></p><p>In 1971, tests were made with a 13-pound rifle using a Winchester 70 action with a medium weight whippy 26-inch barrel at 600 yards shooting the .308 Win. Several 10-shot groups were fired and they ranged from 1.5 inches down to 0.8 inches.</p><p></p><p>In 1991, another test with a rifle using a Winchester 70 action was made at 600 yards with .308 Win. ammo using new cases charged with metered (not weighed) powder was made. It had a long, whippy 30-inch Palma barrel and put 20 consecutive shots into 2.7 inches.</p><p></p><p>In 1993, another .308 Win. Palma rifle based on a Paramount action was tested at 800 yards and it put 20 consecutive shots into 3.2 inches.</p><p></p><p>Over a period of 15 years, a .30-.338 Win. Mag. on a Winchester 70 action was tested 6 times at 1000 yards; twice with each of three barrels. It's 28-inch long whippy medium weight barrels were able to have all of those 15-shot test groups under 7 inches. Some of the 5-shot strings were under 2 inches.</p><p></p><p>All of the humongus benchrest rifles with extremely stiff barrels used today are no more accurate than those using the whippy barrels mentioned above. If you're not aware of this, you must not be hangin' out in the shooting discipline where there are people that know about it.</p></blockquote><p></p>
[QUOTE="Bart B, post: 100261, member: 5302"] [ QUOTE ] Goodgrouper and UncleB, maybe you know something I don't know. What's the typical 20-shot group accuracy you think someone could attain at 800 yards with one of those whippy, 30-inch long Palma barrels that's only about .800-inch at the muzzle weighing about 5 pounds? Benchrest competition rifles shoot aggregates of several 5- or 10-shot groups that average about 1/2 moa at 600 yards and about 7/10ths moa at 1000 yards with their stiff barrels. And yes, these rifles sometimes shoot a single group that's smaller. How do you think a whippy, less stiff Palma barrel would compare? [/ QUOTE ] Well, Goodgrouper and UncleB, I guess you two have chose not to cross the "line in the sand" so I'll give you some facts. In the late 1960s, a 13 pound .308 Win. on a Win. 70 action was tested at 600 yards. 40 consecutive shots went into 1.9 inches. In 1971, tests were made with a 13-pound rifle using a Winchester 70 action with a medium weight whippy 26-inch barrel at 600 yards shooting the .308 Win. Several 10-shot groups were fired and they ranged from 1.5 inches down to 0.8 inches. In 1991, another test with a rifle using a Winchester 70 action was made at 600 yards with .308 Win. ammo using new cases charged with metered (not weighed) powder was made. It had a long, whippy 30-inch Palma barrel and put 20 consecutive shots into 2.7 inches. In 1993, another .308 Win. Palma rifle based on a Paramount action was tested at 800 yards and it put 20 consecutive shots into 3.2 inches. Over a period of 15 years, a .30-.338 Win. Mag. on a Winchester 70 action was tested 6 times at 1000 yards; twice with each of three barrels. It's 28-inch long whippy medium weight barrels were able to have all of those 15-shot test groups under 7 inches. Some of the 5-shot strings were under 2 inches. All of the humongus benchrest rifles with extremely stiff barrels used today are no more accurate than those using the whippy barrels mentioned above. If you're not aware of this, you must not be hangin' out in the shooting discipline where there are people that know about it. [/QUOTE]
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