Replace your old default weapon data with this new one :

$ AK47				INSTANT_HIT	110.0 170.0	355	-1		5	rifle		100	 30		0.78 -0.06  0.13    0  0	0.40 0.9 	 6  8  6	 6  8  6  99	7011
$ AK47				INSTANT_HIT	125.0 170.0	355	-1		5	rifle		100	 30		0.78 -0.06  0.13    1  200	0.50 1.0 	 6  8  6	 6  8  6  99	7011
$ AK47				INSTANT_HIT	140.0 170.0	355	-1		5	rifle		100	 30		0.78 -0.06  0.13    2  999	0.60 1.1 	 6  8  6	 6  8  6  99	7031

