Apr 30, 2019 · The bullet was made out of soft lead, had a conical shape, and had anywhere from two to four rings at the base. These characteristics allowed the minié ball to expand and engage the rifling of the gun barrel when it was fired, keeping the bullet on a straighter path.
Rate of Spin Whether roundball or conical, any bullet fired from a rifled barrel spins as it travels to the target. Spin is responsible for stability in flight, a very important factor in accuracy. Think of a ball fired at 2000 fps from a barrel with 1: 66 twist.
The Hornady™ Pennsylvania Conical Bullets are designed for shooters using a longer barreled, slower twist firearm. The Hornady™ PA features a heavier conical style 50 caliber bullet that weighs about 35% more than a typical lead round ball. These bullets are.512 diameter at the driving band (the smooth portion of the bullet near the top).
Sep 24, 2017 · Minie Ball During Civil War. The round ball ruled the military and sporting world until the introduction of rifling and the need to speed up the reloading process. Enter the Minié Ball, an elongated, conical bullet with a hollow base. This allowed the insertion and ramming of the projectile without having to wrap it in a patch like the round ball.
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The bullets could also be longer and consequently have more mass than a round ball of the same diameter, meaning more velocity and more power. Today, conical bullets are made of lead, jacketed lead and full copper. EXAMPLES: Thor Full Bore Conical Bullet, Hornady FPB. Sabot Bullets
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May 27, 2009 · How accurate is a patched 50 cal. round ball vs. a conical bullet at 100 to 150 yds. 2. Also how much more accurate is a 1:32 rifling vs. a 1:48 for conical bullets at 100 to 150 yds. for deer hunting.
2. Twist of 1 turn in 48" shoots lead conicals & minie balls do well, will shoot OK with patch & ball but may they may drift at longer ranges. 3. If the twist is 1 turn in 32" or less, sabots or power belts should work really well. Mixed results with lead concials/minies, some guns like them & others don't. Round balls "usually" don't do well.