.221 Remington Fireball

Test barrel: 356 mm (14”), 1 in 12” twist
Primers: Small Rifle
Cases: Lapua, trim-to length 35,40 mm (1.394”)
 
Bullet2,6 g / 40 grBlitz King, SierraC.O.L. 46,5 mm / 1.831 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N1201,0616.487628741,1217.39243031
N1301,1818.287928841,25F19.3F9313054
F – Case full
 
Bullet3,4 g / 52 grMatchKing, SierraC.O.L. 46,5 mm / 1.831 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N1200,9614.877525431,0516.28062644
N1301,0015.471323391,1217.38142671
N1331,2018.579326021,25F19.3F8232700
F – Case full
 
Bullet3,6 g / 55 grFMJ, LapuaC.O.L. 46,5 mm / 1.831 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N1200,9214.273224021,0015.47792556
N1301,0015.474824541,0716.57922598
N1331,1818.277425391,22F18.8F7982618
F – Case full
 
Bullet3,6 g / 55 grSoft Point, LapuaC.O.L. 46,5 mm / 1.831 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N1200,8613.371823561,0015.47782552
N1301,0616.475224671,1317.47962612
N1331,1818.276425071,25F19.3F8072648