How do i re-enable the weapon skills of Sniper Rifle and Country Rifle

[H-G]

OK, so one day i was checking out GTA SA's weapon.dat when all of a sudden i came across this:

#$ COUNTRYRIFLE		INSTANT_HIT	50.0 100.0	357	-1		6	sniper		1	 75		0.7  -0.05  0.2		0  0	0.75 1.0 	 6 17  7	 6 17  7  99	A018$ COUNTRYRIFLE		INSTANT_HIT	55.0 100.0	357	-1		6	sniper		1	 75		0.7  -0.05  0.2		1  300	1.0	 1.2 	 6 17  7	 6 17  7  99	A008#$ COUNTRYRIFLE		INSTANT_HIT	60.0 100.0	357	-1		6	sniper		1	 75		0.7  -0.05  0.2		2  999	1.25 1.3 	 6 17  7	 6 17  7  99	A038#$ SNIPERRIFLE		INSTANT_HIT	40.0 100.0	358	-1		6	sniper		1	 125	0.7  -0.05  0.2 	0  0	0.75 1.0 	 6 17  7	6  17  7  99	A014$ SNIPERRIFLE		INSTANT_HIT	50.0 100.0	358	-1		6	sniper		1	 125	0.7  -0.05  0.2 	1  300	1.0	 1.0 	 6 17  7	6  17  7  99	A014#$ SNIPERRIFLE		INSTANT_HIT	60.0 100.0	358	-1		6	sniper		1	 125	0.7  -0.05  0.2 	2  999	1.25 1.0 	 6 17  7	6  17  7  99	A014

Is there a way to re-enable them?

[X-Falcon]

Perfect without enabled. Except R* will revive trees skill, ops! but too late it's abandoned! they just back in series V HURT MY PC!