MK262 data

thebambam2001

March 08, 2011 08:32

Getting ready to try and copy the load data for Black Hills MK262 77 gr open tip rounds. Does anyone know the powder used and the weight? been told it is TAC @ 24.5 gr.

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  sandwarrior

  March 12, 2011 13:48

  RE-15, 25.5 gr. for a 5.56 chamber and 24.5 gr. for a .223 chamber. Bullet seated to 2.210 c.o.a.l.
  
  That will give you the required 2700 fps from a 16" barrel. About 2650 fps from a 14.5" barrel (M4)
  
  Don't forget to start a little lower and work up.[8D]

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