BC & Twist: Plains Supreme

Calibre	Weight (gr)	BC G1	BC G7	Twist Rate Seal Level	Twist Rate Upcountry
.224
Flat Base	30	0.122
Flat Base	45	0.144
Flat Base	47	0.169
	50	0.221
Flat Base	50	0.187
Flat Base	55	0.2
	60	0.286	0.141
	65	0.299
	70	0.33	0.164
	80	0.338	0.193
.243
	70	0.32	0.155
	75	0.348	0.169
	80	0.337	0.163
	85	0.372	0.18
T7	85	0.317
Flat Base	90	0.328
	95	0.416
	100	0.43	0.208
.257(6.35mm)
T7	87	0.331
T7	100	0.375
.264(6.5mm)
	85	0.307
	100	0.364
	115	0.41
	120	0.431
	125	0.467
	130	0.484	0.269
.270(.277″)
	120	0.432
	130	0.459
	140	0.46
T7	145	0.451
7mm(.284″)
	130	0.331
	140	0.35
	154	0.466
	162	0.51
Flat Base	170	0.466
.308
	130	0.34
	140	0.362
	150	0.4
T10	165	0.425
T7	165	0.407
	180	0.441
Flat Base	200	0.478
Flat Base	220	0.526
.303
	130	0.309
	150	0.382
	180	0.45
8mm
	160	0.357
	175	0.47
	200	0.541	0.278
	220	0.536	0.302
.330
Flat Base	250	0.55
.338
	180	0.43
	200	0.49
	225	0.469
	250	0.63
T10	250	0.6
	275	0.59
	300	0.553
9.3mm
	250	0.477	0.271
Flat Base	286	0.474	0.309
.375
	235	0.45	0.236
	250	0.486	0.243
	270	0.49	0.251
Flat Base	300	0.506
.404
	300	0.341	0.241
	350	0.397	0.281
	400	0.45	0.321
.416
	300	0.352	0.25
	350	0.4	0.293
	400	0.46	0.335
.458
	350
	400
	450
	500
.50 BMG
	650	0.756	0.358
	750	0.88	0.416