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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Palma vs Benchrest?
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<blockquote data-quote="Bart B" data-source="post: 507293" data-attributes="member: 5302"><p>Yes.</p><p></p><p>They've been tested from machine rests and off the bench. They'll hold at least 4 inches at 600 yards, some even smaller. When Sierra's 155-gr. Palma bullet was first introduced in competition back in 1991, top long range shooters from around the world all felt the ammo would hold 3 inches or better at 600 yards. A random test of that 1991 ammo put 20 shots in 2.7 inches at 600 yards. More recently, 1000 yard tests with better powders and bullets have 10-shot groups at 5 to 6 inches. The Palma record is 450-39X. Course of fire is two sighters then 15 record shots at 800, 900 and 1000 yards. Thirty-nine shots stayed inside the 10-inch X ring. the rest inside the 20-inch 10 ring. That's with aperture sights and a 3.5 pound trigger, slung up prone on the ground, fighting pulse beat, doping the wind for each shot and trying to hold the rifle exactly the same way for each shot.</p><p></p><p>Compare the above to NBRSA 600 and 1000 yard aggregates. Note agg's are the average of several groups. If one stacks each target of the aggregate atop one another then plots each of all shots fired, the composite group will equal what Palma rifles do and be larger than the aggretate score. Latest benchrest 6-group 1000 yard record LG 3-target Agg was 5.782", while the HG 3-target Agg was 5.779." So all shots probably went into about 7 inches. I've done that well shooting brand new 30 caliber magnum cases from a Winchester.</p><p></p><p>There's no way a Palma rifle could compete in a benchrest match. Same for a benchrest rifle competing in a Palma match. If you know the details of how each one is held, sighted and fired, you'll understand. While the inheirant accuracy of both are the same, one shoots under one half MOA groups to win, the other shoots two MOA or more and wins.</p></blockquote><p></p>
[QUOTE="Bart B, post: 507293, member: 5302"] Yes. They've been tested from machine rests and off the bench. They'll hold at least 4 inches at 600 yards, some even smaller. When Sierra's 155-gr. Palma bullet was first introduced in competition back in 1991, top long range shooters from around the world all felt the ammo would hold 3 inches or better at 600 yards. A random test of that 1991 ammo put 20 shots in 2.7 inches at 600 yards. More recently, 1000 yard tests with better powders and bullets have 10-shot groups at 5 to 6 inches. The Palma record is 450-39X. Course of fire is two sighters then 15 record shots at 800, 900 and 1000 yards. Thirty-nine shots stayed inside the 10-inch X ring. the rest inside the 20-inch 10 ring. That's with aperture sights and a 3.5 pound trigger, slung up prone on the ground, fighting pulse beat, doping the wind for each shot and trying to hold the rifle exactly the same way for each shot. Compare the above to NBRSA 600 and 1000 yard aggregates. Note agg's are the average of several groups. If one stacks each target of the aggregate atop one another then plots each of all shots fired, the composite group will equal what Palma rifles do and be larger than the aggretate score. Latest benchrest 6-group 1000 yard record LG 3-target Agg was 5.782", while the HG 3-target Agg was 5.779." So all shots probably went into about 7 inches. I've done that well shooting brand new 30 caliber magnum cases from a Winchester. There's no way a Palma rifle could compete in a benchrest match. Same for a benchrest rifle competing in a Palma match. If you know the details of how each one is held, sighted and fired, you'll understand. While the inheirant accuracy of both are the same, one shoots under one half MOA groups to win, the other shoots two MOA or more and wins. [/QUOTE]
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