From a total of 1,868 kills with 959 headshots

Rank	Weapon	Modifier	Kills	%	Ratio	Headshots	%	Ratio	HS:K
1		1.10	485	25.96%		303	31.60%		0.62
2		1.00	409	21.90%		256	26.69%		0.63
3		1.20	260	13.92%		154	16.06%		0.59
4		1.00	244	13.06%		87	9.07%		0.36
5		2.00	113	6.05%		0	0.00%		0.00
6		1.00	101	5.41%		48	5.01%		0.48
7		1.00	74	3.96%		31	3.23%		0.42
8		1.00	56	3.00%		27	2.82%		0.48
9		1.40	27	1.45%		12	1.25%		0.44
10		1.20	24	1.28%		15	1.56%		0.63
11		1.20	21	1.12%		10	1.04%		0.48
12		1.10	14	0.75%		3	0.31%		0.21
13		1.40	8	0.43%		0	0.00%		0.00
14		1.40	6	0.32%		4	0.42%		0.67
15		1.10	6	0.32%		2	0.21%		0.33
16		1.50	5	0.27%		2	0.21%		0.40
17		1.20	4	0.21%		2	0.21%		0.50
18		1.20	3	0.16%		0	0.00%		0.00
19		1.50	3	0.16%		1	0.10%		0.33
20		1.50	2	0.11%		1	0.10%		0.50
21		1.20	2	0.11%		1	0.10%		0.50
22		1.50	1	0.05%		0	0.00%		0.00