probably ur writing the command wrong.
first u need to have a weapon in hand
second the @makeweap doesnt allow high positive numbers so use negative ones.
third u need to use the command like this @makeweap dcnumber mcnumber scnumber accnumber
example, if u want 200dc 200mc 200sc and 7acc by holding only the weapon do:
@makeweap -56 -56 -56 -249, i said 7 as acc because 7 is the best value u can give it, if u put 8 it will be as having acc 1, 9 will be like acc2 etc etc.
if u want another value in the makeweap command think that u have to do 256-the number u wish to have=the number u need to use. in my example for dc do:
256-200=-56
if u want 255 dc then do:
256-255=-1
simply no?