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Highest Rifle Velocity
5278 fps in .22-243 Middl.
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13109 ft-lbs in .50 BMG




.221 Remington Fireball

Introduced in 1963, the .221 Fire Ball and its Experimental Pistol Number 100 were the brainchild of Remington's Wayne Leek. An abbreviated single shot version of Leek's Remington Model 600 Carbine, the pistol was introduced to the shooting world as the XP-100. During it development stages, the XP-100 was first chambered for the .222 Remington cartridge, but Leek eventually decided it burned a bit more powder then was necessary in a 10-3/4 inch barrel. Consequently, the .222 case was shortened to 1.40 inches and the new cartridge became known as the .221 Fire Ball. Muzzle velocity with a 50 grain bullet was advertised as 2650 fps. During the infancy of handgun metallic silhouette shooting, the 221 Fire Ball was mildly popular among competitors in that sport, but as more powerful cartridges became available in the XP-100, it went back to doing what it had always done best, tumbling varmints at distances handgunners had never thought possible before its introduction. Even today the 221 Fire Ball is an excellent choice for varminting with single shot handguns. When chambered in custom XP-100 or Contender barrels measuring 14-16 inches long, it is only about 150 fps slower than the  more popular 223 Remington. For shooting varmints at long range with th .221 Fire Ball, 50 grain bullets with extremely thin jackets are the very best choices. Good examples are the Nosler Expander, Hornady Super Explosive, Sierra Blitz, and Speer TNT. H4227 is an excellent powder for this mild mannered little cartridge. 

This text is based on information from “Cartridges of the World”, Hodgdon reloading manual, the cartridge designer and/or own resources.

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Show all 56 loads

To narrow your search, choose the desired bullet weight, bullet name, or powder.

    Bullet weight: Bullet name: Powder:    
45 grs
50 grs
55 grs
60 grs
70 grs
Hodgdon H4227
IMR 3031
IMR 4064
IMR 4198
IMR 4227
IMR 4895
IMR Hi-Skor 700-X
IMR Hi-Skor 800-X
IMR SR 4756
IMR SR 4759
IMR SR 7625

  Not yet verified user loads
ID: Bullet weight: Bullet name: Powder:
1623 40 grs
sierra varminter 2400
24765 50 grs
Sierra Blitzking IMR 4198
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