From a total of 375 kills with 196 headshots

Rank	Weapon	Modifier	Kills	%	Ratio	Headshots	%	Ratio	HS:K
1		1.00	102	27.20%		56	28.57%		0.55
2		1.00	61	16.27%		21	10.71%		0.34
3		1.00	35	9.33%		16	8.16%		0.46
4		1.20	34	9.07%		26	13.27%		0.76
5		1.10	29	7.73%		14	7.14%		0.48
6		1.40	26	6.93%		17	8.67%		0.65
7		1.10	23	6.13%		16	8.16%		0.70
8		1.40	12	3.20%		9	4.59%		0.75
9		1.20	9	2.40%		5	2.55%		0.56
10		1.50	8	2.13%		3	1.53%		0.38
11		1.30	6	1.60%		5	2.55%		0.83
12		1.00	5	1.33%		2	1.02%		0.40
13		1.20	5	1.33%		1	0.51%		0.20
14		1.50	4	1.07%		3	1.53%		0.75
15		1.80	3	0.80%		0	0.00%		0.00
16		1.30	3	0.80%		0	0.00%		0.00
17		1.30	2	0.53%		1	0.51%		0.50
18		1.10	2	0.53%		1	0.51%		0.50
19		1.00	2	0.53%		0	0.00%		0.00
20		1.80	2	0.53%		0	0.00%		0.00
21		2.00	1	0.27%		0	0.00%		0.00
22		1.50	1	0.27%		0	0.00%		0.00