BC & Twist: Percussion Cup

Calibre	Weight (gr)	BC G1	BC G7	Twist Rate	Stab Fac. @ Sea Level	Stab Fac. @ 1520m
.338
	250	0.178	0.316	1 in 10	3.23	3.88
9.3mm
	286	0.225	0.313	1 in 14	2.19	2.63
.375
	300	0.19	0.313	1 in 15	3.37	4.05
	320	0.199	0.328
.416
	350	0.179	0.292	1 in 16	3.34	4.02
	400	0.203	0.332	1 in 16	2.7	3.07
.404
	350	0.175			4.07	4.89
	400			1 in 16	2.87	3.33
.425
	400	0.216	0.322	1 in 18
.458
	310	0.142	0.215	1 in 35
	350			1 in 24
	400	0.181	0.276	1 in 24
	425	0.202	0.312	1 in 16
	450	0.207	0.312	1 in 16
	470	0.212	0.325	1 in 16
Brass	470	0.222	0.345	1 in 16
	500	0.226	0.345	1 in 16
	550	0.249	0.382	1 in 16
.470
	500	0.249	0.324	1 in 20
	550
.505
	535	0.207	0.299	1 in 26
	570	0.222	0.321	1 in 22
.510
	535	0.207	0.296	1 in 26
	570	0.221	0.315	1 in 24
0.600 (0.62″)
	900	0.278	0.338	1 in 34