.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”)

Bullet	2,6 g / 40 gr		Sierra, Blitz King		C.O.L. 46,5 mm / 1.831 inch
Powder	Starting load				Maximum load
Type	Weight		Velocity		Weight		Velocity
	[g]	[grs]	[m/s]	[fps]	[g]	[grs]	[m/s]	[fps]
N120	1,06	16.4	876	2874	1,12	17.3	924	3031
N130	1,18	18.2	879	2884	1,25F	19.3F	931	3054
F – Case full
Bullet	3,4 g / 52 gr		Sierra, MatchKing		C.O.L. 46,5 mm / 1.831 inch
Powder	Starting load				Maximum load
Type	Weight		Velocity		Weight		Velocity
	[g]	[grs]	[m/s]	[fps]	[g]	[grs]	[m/s]	[fps]
N120	0,96	14.8	775	2543	1,05	16.2	806	2644
N130	1,00	15.4	713	2339	1,12	17.3	814	2671
N133	1,20	18.5	793	2602	1,25F	19.3F	823	2700
F – Case full
Bullet	3,6 g / 55 gr		Lapua, FMJ		C.O.L. 46,5 mm / 1.831 inch
Powder	Starting load				Maximum load
Type	Weight		Velocity		Weight		Velocity
	[g]	[grs]	[m/s]	[fps]	[g]	[grs]	[m/s]	[fps]
N120	0,92	14.2	732	2402	1,00	15.4	779	2556
N130	1,00	15.4	748	2454	1,07	16.5	792	2598
N133	1,18	18.2	774	2539	1,22F	18.8F	798	2618
F – Case full
Bullet	3,6 g / 55 gr		Lapua, Soft Point		C.O.L. 46,5 mm / 1.831 inch
Powder	Starting load				Maximum load
Type	Weight		Velocity		Weight		Velocity
	[g]	[grs]	[m/s]	[fps]	[g]	[grs]	[m/s]	[fps]
N120	0,86	13.3	718	2356	1,00	15.4	778	2552
N130	1,06	16.4	752	2467	1,13	17.4	796	2612
N133	1,18	18.2	764	2507	1,25F	19.3F	807	2648

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